taxonID	type	description	language	source
B360D319FFEFFFC52A9C7F19D82100A6.taxon	diagnosis	Diagnosis: Coelosphaeridae with a plumose to plumoreticulate choanosomal skeleton of ascending tracts consisting of anisostrongyles and tylotes with smooth or spined ends, fanning out towards the surface, loosely connected. Ectosomal skeleton of a loose tangential arrangement of scaưered anisostrongyles / tylotes and microscleres. Microscleres consist of arcuate isochelae in one or two distinct size categories and oxychaetes of one size category. Microscleres are distributed randomly within the choanosome (modified from Henkel and Janussen 2011 to include the presence of smooth megascleres and a single arcuate isochelae category).	en	Cruz-Barraza, José Antonio, Carballo, José Luis, Aguilar-Camacho, José María (2023): Taxonomy and molecular phylogenetic position of new species and new records of Coelosphaeridae (Demospongiae: Poecilosclerida) from the Mexican Pacific. Zoological Journal of the Linnean Society 199 (2): 511-532, DOI: 10.1093/zoolinnean/zlad036, URL: http://dx.doi.org/10.1093/zoolinnean/zlad036
B360D319FFEEFFC129E57EE4D86004B0.taxon	description	(Figs 2, 3)	en	Cruz-Barraza, José Antonio, Carballo, José Luis, Aguilar-Camacho, José María (2023): Taxonomy and molecular phylogenetic position of new species and new records of Coelosphaeridae (Demospongiae: Poecilosclerida) from the Mexican Pacific. Zoological Journal of the Linnean Society 199 (2): 511-532, DOI: 10.1093/zoolinnean/zlad036, URL: http://dx.doi.org/10.1093/zoolinnean/zlad036
B360D319FFEEFFC129E57EE4D86004B0.taxon	materials_examined	Material examined Holotype: LEB-ICML-UNAM- 144, Isla Lobos (Mazatlán, Sinaloa), 23 ° 13 ’ 49 ’’ N, 106 ° 27 ’ 43 ’’ W, 17 / X / 2002, 5 m depth. Paratypes: LEB-ICML-UNAM- 161, Isla Cardones (Mazatlán, Sinaloa), 23 ° 11 ’ 05 ’’ N, 106 ° 24 ’ 07 ’’ W, 15 / III / 2000, depth 8 m. LEB-ICML-UNAM- 172, Isla Pájaros (Mazatlán, Sinaloa), 23 ° 15 ’ 29 ’’ N, 106 ° 28 ’ 25 ’’ W, 16 / III / 2000, 5 m depth. LEBICML-UNAM- 260, Paraje Viejo (Guaymas, Sonora), 27 ° 52 ’ 20 ’’ N, 110 ° 52 ’ 08 ’’ W, 04 / XI / 2000, 12 m depth. LEBICML-UNAM- 292, Ensenada de Bacochibampo (Guaymas, Sonora), 27 ° 54 ’ 37 ’’ N, 101 ° 57 ’ 12 ’’ W, 06 / XI / 2000, 5 m depth. LEB-ICML-UNAM- 618, Conchas Chinas (Bahía de Banderas, Jalisco), 20 ° 35 ’ 16 ’’ N, 105 ° 14 ’ 42 ’’ W, 08 / X / 2002, 5 m depth. LEB-ICML-UNAM- 740, Paraje Viejo Astillero de Guaymas (Guaymas, Sonora) 27 ° 52 ’ 20 ’’ N, 110 ° 52 ’ 8 ’’ W, 26 / XI / 2002, 4 m depth. LEB-ICML-UNAM- 797, Mismaloya (Bahía de Banderas, Jalisco), 20 ° 31 ’ 56 ’’ N, 105 ° 17 ’ 42 ’’ W, 09 / VI / 2003, 10 m depth. LEB-ICML-UNAM- 850, Majahuita (Bahía de Banderas, Jalisco), 20 ° 29 ’ 06 ’’ N, 105 ° 35 ’ 03 ’’ W, 08 / VI / 2003, 15 m depth.	en	Cruz-Barraza, José Antonio, Carballo, José Luis, Aguilar-Camacho, José María (2023): Taxonomy and molecular phylogenetic position of new species and new records of Coelosphaeridae (Demospongiae: Poecilosclerida) from the Mexican Pacific. Zoological Journal of the Linnean Society 199 (2): 511-532, DOI: 10.1093/zoolinnean/zlad036, URL: http://dx.doi.org/10.1093/zoolinnean/zlad036
B360D319FFEEFFC129E57EE4D86004B0.taxon	etymology	Etymology: The term ‘ chichiltik’ comes from Nahuatl (an old Mexican language) and means red colour, which refers to the species’ typical coloration.	en	Cruz-Barraza, José Antonio, Carballo, José Luis, Aguilar-Camacho, José María (2023): Taxonomy and molecular phylogenetic position of new species and new records of Coelosphaeridae (Demospongiae: Poecilosclerida) from the Mexican Pacific. Zoological Journal of the Linnean Society 199 (2): 511-532, DOI: 10.1093/zoolinnean/zlad036, URL: http://dx.doi.org/10.1093/zoolinnean/zlad036
B360D319FFEEFFC129E57EE4D86004B0.taxon	diagnosis	Diagnosis: Red thinly-encrusting sponge, characterized by a peculiar fistulose surface. Spicules are smooth iso-anisostrongyles to iso-anisotylotes (180.5 – 307 µm length), arcuate tridentate isochelae (15 – 25 µm length), and very thin oxychaetes (30 – 100 µm length).	en	Cruz-Barraza, José Antonio, Carballo, José Luis, Aguilar-Camacho, José María (2023): Taxonomy and molecular phylogenetic position of new species and new records of Coelosphaeridae (Demospongiae: Poecilosclerida) from the Mexican Pacific. Zoological Journal of the Linnean Society 199 (2): 511-532, DOI: 10.1093/zoolinnean/zlad036, URL: http://dx.doi.org/10.1093/zoolinnean/zlad036
B360D319FFEEFFC129E57EE4D86004B0.taxon	description	Description Thinly encrusting sponge, from 0.5 to 2 mm thick, covering rocky substrates from 2 to 8 cm (maximum diameter). The species consists of a basal portion irregular in shape, and from its surface arises many small fistules evenly distributed (Fig. 2 A, B). Fistules are circular or oval in section (from 1 to 2.5 mm in diameter), and distally widened; they can protrude from 3 to 6 mm high on the surface when alive. They bear ostia (in sieve-like arrangement) or oscula, not always visible underwater (Fig. 2 A, B). Oscula are circular or oval shaped (about 1 mm in diameter), slightly elevated from the basal surface by an ectosomal membrane or at the top of the fistules. Specimens commonly contain foreign material embedded in the choanosome. Consistency is firm but specimens are easy to tear when preserved. Colour in life is bright red. Asser fixation, the colour becomes light brown to pale. Skeletal characteristics Skeleton: Ectosomal skeleton is composed of a dense layer (10 – 20 µm thick) of tangentially strewn tylotes without distinctive arrangement, sometimes forming multispicular tracks about 10 µm thick. The choanosomal skeleton is a disorganized structure but it is possible to discern a vague plumoreticulate structure formed by primary multispicular tracts (10 – 100 µm thick) interconnected with secondary uni-paucispicular or multispicular tracts (5 – 45 µm thick) (Fig. 2 C). Fistules are characterized by a dense spicular structure formed by an agglomeration of criss-crossed megascleres perpendicularly arranged to the basal surface. Microscleres are distributed without a special organization. Spicules: Megascleres are strongyles (iso-anisostrongyles) and tylotes (iso-anisotylotes) (Figs 2 D, E, 3 A, B), both similar in size and difficult to define between intermediate forms. Tylotes are straight to slightly curved or even with flexuous shasss and smooth ends (Fig. 3 C). Strongyles are commonly wider than tylotes. Strongyles length: 207 – (223.2) – 238 µm; shass diameter 5 – 6.3 µm (Table 2). Tylotes length: 187.5 – (216) – 237.5 µm; shass diameter: 2.5 – 4.5 µm; head diameter: 3 – 6.3 µm (Table 2). Microscleres are arcuate tridentate isochelae from 20 – 32.5 µm in length (Fig. 3 D), and thin oxychaetes (Fig. 3 E, F) from 30 – 100 µm in length and less than 1 µm in diameter (Table 2).	en	Cruz-Barraza, José Antonio, Carballo, José Luis, Aguilar-Camacho, José María (2023): Taxonomy and molecular phylogenetic position of new species and new records of Coelosphaeridae (Demospongiae: Poecilosclerida) from the Mexican Pacific. Zoological Journal of the Linnean Society 199 (2): 511-532, DOI: 10.1093/zoolinnean/zlad036, URL: http://dx.doi.org/10.1093/zoolinnean/zlad036
B360D319FFEEFFC129E57EE4D86004B0.taxon	distribution	Distribution and habitat Asser several field surveys along the Mexican Pacific coast, Celtodoryx chichiltik sp. nov. was only found in shallow waters from the Gulf of California (Sonora, Sinaloa, and Jalisco; Fig. 1). The species is relatively common on rocky substrates. Most individuals were found covered by sediments only visible by their protruding fistules.	en	Cruz-Barraza, José Antonio, Carballo, José Luis, Aguilar-Camacho, José María (2023): Taxonomy and molecular phylogenetic position of new species and new records of Coelosphaeridae (Demospongiae: Poecilosclerida) from the Mexican Pacific. Zoological Journal of the Linnean Society 199 (2): 511-532, DOI: 10.1093/zoolinnean/zlad036, URL: http://dx.doi.org/10.1093/zoolinnean/zlad036
B360D319FFEEFFC129E57EE4D86004B0.taxon	discussion	Remarks: The genus Celtodoryx was erected by Pérez et al. (2006) for Coelosphaeridae species with a plumoreticulate chonosomal skeleton of tylotes and strongyles (anisostrongyles and anisotylotes), with arcuate isochelae and oxychaetes as microscleres. Originally, Celtodoryx girardae Pérez, Perrin, Carteron, Vacelet & Boury-Esnault, 2006 (from the north-east Atlantic) was established as the type species. However, years later, Henkel and Janusen (2011) suggested that this species was conspecific with Cornulum ciocalyptoides Burton, 1935 from the north-west Pacific. So, they transferred the last species to Celtodoryx, and synonymized it with C. girardae. Thereby, Celtodoryx ciocalyptoides became the senior synonym of C. girardae and, consequently, the type species of Celtodoryx (by subsequent designation). Celtodoryx ciocalyptoides is a yellow encrusting to massive (globular growth form) sponge, with 1.5 cm and up to 50 cm thick. In contrast, analysed samples of Celtodoryx chichiltik sp. nov. were red in colour and consistently thinly encrusting less than 1 cm thick. In addition, C. ciocalyptoides produced abundant mucus upon collection, which was never observed in the new species. Regarding the spicular complement, the main differences are in the megascleres morphology and microscleres size. In C. ciocalyptoides, the anisostrongyles possess strong spines at the ends, which sometimes are subdivided into several smaller ones, whereas the head of tylotes are entirely covered by spines. In contrast, the ends of both megascleres in Celtodoryx chichiltik sp. nov. are always smooth. Henkel and Janusen (2011) have reported a few thin tylotes with smooth ends; they were considered as immature spicules. Megascleres with smooth ends were never mentioned in the original descriptions of C. ciocalyptoides and C. girardae. Another difference between these two species is the anisochelae size; C. ciocalyptoides have two size categories: I: 33.6 – 62 µm and II: 16 – 30 µm in length, whereas the new species has a single category from 15 – 25 µm length (Table 2). Celtodoryx chichiltik sp. nov. constitutes the first record of the genus Celtodoryx in the eastern Pacific region and the second valid species of this genus.	en	Cruz-Barraza, José Antonio, Carballo, José Luis, Aguilar-Camacho, José María (2023): Taxonomy and molecular phylogenetic position of new species and new records of Coelosphaeridae (Demospongiae: Poecilosclerida) from the Mexican Pacific. Zoological Journal of the Linnean Society 199 (2): 511-532, DOI: 10.1093/zoolinnean/zlad036, URL: http://dx.doi.org/10.1093/zoolinnean/zlad036
B360D319FFEAFFC12AF479E0DAB7042F.taxon	description	Definition: Lissodendoryx with a single megasclere type (Van Soest 2002).	en	Cruz-Barraza, José Antonio, Carballo, José Luis, Aguilar-Camacho, José María (2023): Taxonomy and molecular phylogenetic position of new species and new records of Coelosphaeridae (Demospongiae: Poecilosclerida) from the Mexican Pacific. Zoological Journal of the Linnean Society 199 (2): 511-532, DOI: 10.1093/zoolinnean/zlad036, URL: http://dx.doi.org/10.1093/zoolinnean/zlad036
B360D319FFEAFFC128487A88DA6D07AD.taxon	description	Massive, lobate, or flabelliform sponges, with irregular or clathrate (open latticework-like) surface. Ectosomal skeleton with smooth ectosomal tornotes, tylotes, or strongyles forming tangential tracts and surface brushes; choanosomal skeleton an isodictyal reticulation of single spicules, an anisotropic reticulation, or a plumo-reticulation, composed of smooth or acanthose choanosomal styles, sometimes oxeas or strongyles, alone or in combination; echinating spicules may be present; microscleres are arcuate isochelae, sigmas, and raphides arranged in trichodragmata. A genus of cosmopolitan distribution, with many species (Fernandez et al. 2016).	en	Cruz-Barraza, José Antonio, Carballo, José Luis, Aguilar-Camacho, José María (2023): Taxonomy and molecular phylogenetic position of new species and new records of Coelosphaeridae (Demospongiae: Poecilosclerida) from the Mexican Pacific. Zoological Journal of the Linnean Society 199 (2): 511-532, DOI: 10.1093/zoolinnean/zlad036, URL: http://dx.doi.org/10.1093/zoolinnean/zlad036
B360D319FFEAFFCF2A037A60DB5C05F8.taxon	description	(Figs 4, 5)	en	Cruz-Barraza, José Antonio, Carballo, José Luis, Aguilar-Camacho, José María (2023): Taxonomy and molecular phylogenetic position of new species and new records of Coelosphaeridae (Demospongiae: Poecilosclerida) from the Mexican Pacific. Zoological Journal of the Linnean Society 199 (2): 511-532, DOI: 10.1093/zoolinnean/zlad036, URL: http://dx.doi.org/10.1093/zoolinnean/zlad036
B360D319FFEAFFCF2A037A60DB5C05F8.taxon	materials_examined	Material examined Holotype: LEB-ICML-UNAM- 1393, El Requesón (Bahía Concepción, Baja California Sur [BCS]), 26 ° 38 ’ 38 ’’ N, 111 ° 49 ’ 53 ’’ W, 29 / X / 2006, 9 m depth. Paratypes: LEB-ICML-UNAM- 449, Isla Pájaros (Mazatlán, Sinaloa), 23 ° 15 ’ 29 ’’ N, 106 ° 28 ’ 25 ’’ W, 02 / II / 2002, 4 m depth.	en	Cruz-Barraza, José Antonio, Carballo, José Luis, Aguilar-Camacho, José María (2023): Taxonomy and molecular phylogenetic position of new species and new records of Coelosphaeridae (Demospongiae: Poecilosclerida) from the Mexican Pacific. Zoological Journal of the Linnean Society 199 (2): 511-532, DOI: 10.1093/zoolinnean/zlad036, URL: http://dx.doi.org/10.1093/zoolinnean/zlad036
B360D319FFEAFFCF2A037A60DB5C05F8.taxon	etymology	Etymology: The term ‘ incrustans’ refers to the encrusting morphology of this species.	en	Cruz-Barraza, José Antonio, Carballo, José Luis, Aguilar-Camacho, José María (2023): Taxonomy and molecular phylogenetic position of new species and new records of Coelosphaeridae (Demospongiae: Poecilosclerida) from the Mexican Pacific. Zoological Journal of the Linnean Society 199 (2): 511-532, DOI: 10.1093/zoolinnean/zlad036, URL: http://dx.doi.org/10.1093/zoolinnean/zlad036
B360D319FFEAFFCF2A037A60DB5C05F8.taxon	diagnosis	Diagnosis: Red encrusting sponge, with a choanosomal anisotropic reticulum formed by primary multispicular fibres, interconnected by secondary paucispicular tracts. Spicules are tylotes with smooth heads. Tylotes length: 150 – 230 μm; head diameter: 2.5 – 5 μm. Sigmas in ‘ C’ or ‘ S’ - shaped from 15 – 40 μm in length, and arcuate isochelae from 15 – 20 μm in length.	en	Cruz-Barraza, José Antonio, Carballo, José Luis, Aguilar-Camacho, José María (2023): Taxonomy and molecular phylogenetic position of new species and new records of Coelosphaeridae (Demospongiae: Poecilosclerida) from the Mexican Pacific. Zoological Journal of the Linnean Society 199 (2): 511-532, DOI: 10.1093/zoolinnean/zlad036, URL: http://dx.doi.org/10.1093/zoolinnean/zlad036
B360D319FFEAFFCF2A037A60DB5C05F8.taxon	description	Description: Thinly encrusting sponge 1 – 3 cm long and 2 – 4 mm thick (Fig. 4 A, B). The surface is smooth and translucent in preserved specimens. The oscula and ostia are not visible asser fixation. The consistency is flexible and difficult to tear. The colour in life is red, pale in preservation. Skeletal characteristics Skeleton: There is no special ectosomal skeleton. The choanosomal frame is an anisotropic reticulum (Fig. 4 C), formed by primary multispicular fibres (30 – 60 µm thick) enclosing tylotes, interconnected by secondary bispicular fibres (5 – 10 µm thick). Microscleres are dispersed with no particular organization. Spicules: Megascleres are exclusively tylotes, which are slender, straight, or slightly curved at the centre, or even flexuous, with smooth and pronounced heads. Tylotes length: 150 – (190.7) – 230 µm; shass diameter: 2.5 – (2.65) – 5 µm; head diameter 3.8 – (5.2) – 7.5 µm (Fig. 5 A, B; Table 3). Microscleres are in ‘ C’ - or ‘ S’ - shaped sigmas: 15 – (34.1) – 40 µm (Fig. 5 C; Table 3), and arcuate isochelae: 15 – (16.4) – 20 µm (Fig. 5 D; Table 3).	en	Cruz-Barraza, José Antonio, Carballo, José Luis, Aguilar-Camacho, José María (2023): Taxonomy and molecular phylogenetic position of new species and new records of Coelosphaeridae (Demospongiae: Poecilosclerida) from the Mexican Pacific. Zoological Journal of the Linnean Society 199 (2): 511-532, DOI: 10.1093/zoolinnean/zlad036, URL: http://dx.doi.org/10.1093/zoolinnean/zlad036
B360D319FFEAFFCF2A037A60DB5C05F8.taxon	distribution	Distribution and habitat Lissodendoryx (Anomodoryx) incrustans sp. nov. was found in Isla Pájaros, Mazatlán Bay (Sinaloa) and in El Requesón, Concepción Bay (Baja California Sur) (Fig. 1). The species is common in clear shallow waters, living on dead corals and rocky substrates exposed to high water movement. The depth range is between 4 and 8 m.	en	Cruz-Barraza, José Antonio, Carballo, José Luis, Aguilar-Camacho, José María (2023): Taxonomy and molecular phylogenetic position of new species and new records of Coelosphaeridae (Demospongiae: Poecilosclerida) from the Mexican Pacific. Zoological Journal of the Linnean Society 199 (2): 511-532, DOI: 10.1093/zoolinnean/zlad036, URL: http://dx.doi.org/10.1093/zoolinnean/zlad036
B360D319FFEAFFCF2A037A60DB5C05F8.taxon	discussion	Remarks: Lissodendoryx (Anomodoryx) incrustans sp. nov. has tylotes, sigmas, and arcuate chelae. The morphologically most similar species is Lissodendoryx (Anomodoryx) dendyi (Whitelegge, 1901), which is a massive yellow sponge described from Australia. It has tylotes (150 – 250 × 2.5 – 9 µm), arcuate chelae (18 – 25 µm), and sigmas (35 – 40 µm). The spicule measurements are like those in Lissodendoryx (Anomodoryx) incrustans sp. nov. However, we think that they are different species based on geographical location, colour, and morphology (Mexican Pacific, red encrusting in Lissodendoryx (Anomodoryx) incrustans sp. nov., and Australian coast, yellow massive in L. (A.) dendyi. Figure 5. SEM images of spicules of Lissodendoryx (Anomodoryx) incrustans sp. nov. A, Tylotes; B, tylotes head detail; C, sigmas; D, arcuate isochelae. For comparison, other species in the subgenus Anomodoryx are: Lissodendoryx (Anomodoryx) amphispinulata Rützler, Piantoni & Díaz, 2007, which is a massive grey sponge described from the Gulf of Mexico, with tylotes (236.3 – 267 × 4.5 – 6.4 µm), acanthotylotes (204.2 – 226.9 × 5.5 – 6 µm), arcuate chelae (23.9 – 27.3 µm), and sigmas (15.3 – 16.2 µm). The microscleres are longer in Lissodendoryx (Anomodoryx) incrustans sp. nov. than in L. (A.) amphispinulata. Lissodendoryx (Anomodoryx) sigmata (de Laubenfels, 1949) is a massive yellow sponge described from the Caribbean with tylotes (189.9 – 257.1 × 3.7 – 6.7 µm), arcuate chelae in two categories (I. 20.6 – 43.7 µm; II. 12 – 16.1 µm), and sigmas in two categories (I. 43.8 – 52.4 µm; II. 11.5 – 13.4 µm) (Rützler et al. 2007). Lissodendoryx (A.) sigmata has two categories of arcuate chelae and sigmas, whereas Lissodendoryx (Anomodoryx) incrustans sp. nov. has a single category for these microscleres.	en	Cruz-Barraza, José Antonio, Carballo, José Luis, Aguilar-Camacho, José María (2023): Taxonomy and molecular phylogenetic position of new species and new records of Coelosphaeridae (Demospongiae: Poecilosclerida) from the Mexican Pacific. Zoological Journal of the Linnean Society 199 (2): 511-532, DOI: 10.1093/zoolinnean/zlad036, URL: http://dx.doi.org/10.1093/zoolinnean/zlad036
B360D319FFEAFFCF2A037A60DB5C05F8.taxon	description	Lissodendoryx (Anomodoryx) vulcanus Cavalcanti, Santos & Pinheiro, 2014, is a brownish-purple volcano-shaped sponge described from Brazil. This is the only species of the subgenus Anomodoryx bearing raphides in the skeleton.	en	Cruz-Barraza, José Antonio, Carballo, José Luis, Aguilar-Camacho, José María (2023): Taxonomy and molecular phylogenetic position of new species and new records of Coelosphaeridae (Demospongiae: Poecilosclerida) from the Mexican Pacific. Zoological Journal of the Linnean Society 199 (2): 511-532, DOI: 10.1093/zoolinnean/zlad036, URL: http://dx.doi.org/10.1093/zoolinnean/zlad036
B360D319FFE4FFCF29BB7BB8D9EE02F8.taxon	description	Definition: Lissodendoryx with a full complement of megascleres including ectosomal tylotornotes and choanosomal styles, which may or not bear spines; without a smaller category of echinating acanthostyles. Microscleres include arcuate isochelae and sigmas, which may be absent. Raphides may be present (Van Soest 2002).	en	Cruz-Barraza, José Antonio, Carballo, José Luis, Aguilar-Camacho, José María (2023): Taxonomy and molecular phylogenetic position of new species and new records of Coelosphaeridae (Demospongiae: Poecilosclerida) from the Mexican Pacific. Zoological Journal of the Linnean Society 199 (2): 511-532, DOI: 10.1093/zoolinnean/zlad036, URL: http://dx.doi.org/10.1093/zoolinnean/zlad036
B360D319FFE4FFCC29C87CB8DAB0019A.taxon	description	(Figs 6, 7)	en	Cruz-Barraza, José Antonio, Carballo, José Luis, Aguilar-Camacho, José María (2023): Taxonomy and molecular phylogenetic position of new species and new records of Coelosphaeridae (Demospongiae: Poecilosclerida) from the Mexican Pacific. Zoological Journal of the Linnean Society 199 (2): 511-532, DOI: 10.1093/zoolinnean/zlad036, URL: http://dx.doi.org/10.1093/zoolinnean/zlad036
B360D319FFE4FFCC29C87CB8DAB0019A.taxon	synonymic_list	Synonymy Lissodendoryx albemarlensis Desqueyroux-Faúndez & van Soest, 1997: 446 – 448. Halichondria isodictyalis Carter, 1882: 285 specimens from ‘ Acapulco’ eastern Pacific, not Caribbean records. Lissodendoryx isodictyalis Dickinson, 1945: 20 – 21 (not Halichondria isodictyalis Carter, 1882).	en	Cruz-Barraza, José Antonio, Carballo, José Luis, Aguilar-Camacho, José María (2023): Taxonomy and molecular phylogenetic position of new species and new records of Coelosphaeridae (Demospongiae: Poecilosclerida) from the Mexican Pacific. Zoological Journal of the Linnean Society 199 (2): 511-532, DOI: 10.1093/zoolinnean/zlad036, URL: http://dx.doi.org/10.1093/zoolinnean/zlad036
B360D319FFE4FFCC29C87CB8DAB0019A.taxon	materials_examined	Material examined AHF- 1736 - 49, Bahía San Gabriel, Isla Espíritu Santo (Golfo de California, BCS), 29 ° 26 ’ 3 ’’ N, 110 ° 21.07 ’’ intertidal, W. R / V VELERO IV. LACM- 1936 - 22, L 35695 D 26, Bahía Ballenas Isla Espíritu Santo, (Golfo de California, BCS), 24 ° 27.8 ’’ N, 110 ° 22 ’ W, 21 / III / 1936, intertidal, R / V VELERO II, AHF- 608 - 36, revised by Dickinson (1945). LEB-ICML-UNAM- 27, Antiguo Muelle de Atraque (Mazatlán, Sinaloa), 23 ° 11 ’ 57 ’’ N, 106 ° 25 ’ 15 ’’ W, 14 / X / 1999, 2 m depth. LEB-ICML- UNAM- 183, Isla Talchichitle Estero del Lanchon (Angostura, Sinaloa), 24 ° 54 ’ 51 ’’ N, 108 ° 02 ’ 33 ’’ W, 10 / V / 2000, 1 m depth. LEB-ICML-UNAM- 190, Isla Altamura (Angostura, Sinaloa), 24 ° 53 ’ 20 ’’ N, 108 ° 06 ’ 45 ’’ W, 1 m depth, 11 / V / 2000. LEB-ICML-UNAM- 191, Isla Talchichitle, Estero del Tlacuachon (Angostura, Sinaloa), 1 m depth, 11 / V / 2000, 24 ° 54 ’ 50 ’’ N, 108 ° 06 ’ 41 ’’ W. LEB-ICML-UNAM- 193, Isleta los Cuartillos (Angostura Sinaloa), 24 ° 56 ’ 57 ’’ N, 108 ° 08 ’ 34 ’’ W, 11 / V / 2000, 1 m depth. LEB-ICML-UNAM- 232, Estero Zacate, (Topolobampo, Sinaloa) 25 ° 36 ’ 25 ’’ N, 109 ° 04 ’ 33 ’’ W, 21 / VI / 2000, 2 m depth. LEB-ICML-UNAM- 720, Puente Maviri (Ahome, Sinaloa), 25 ° 34 ’ 55 ’’ N, 109 ° 6 ’ 52 ’’ W, 14 / XI / 2002, 8 m depth. LEB-ICML-UNAM- 1018, El Requesón (Bahía Concepción, BCS), 26 ° 38 ’ 38 ’’ N, 111 ° 49 ’ 53 ’’ W, 29 / X / 2006, 9 m depth. LEB-ICML-UNAM- 1104, Antiguo Corral del Risco (Bahía de Banderas, Nayarit), 20 ° 46 ’ 20 ’’ N, 105 ° 32 ’ 49 ’’ W, 18 / II / 2005, 3 m depth. LEB-ICML-UNAM- 1369, El Requesón (Bahía Concepción, BCS), 26 ° 38 ’ 38 ’’ N, 111 ° 49 ’ 53 ’’ W, 29 / X / 2006, 9 m depth. LEB-ICML-UNAM- 1443, La Granja Bahía San Gabriel (La Paz, BCS), 24 ° 25 ’ 32 ’’ N, 110 ° 20 ’ 55 ’’ W, 12 / III / 2007, 0.5 m depth. LEB-ICML-UNAM- 1553, Agua de Yepiz (La Paz, BCS), 24 ° 35 ’ 35 ’’ N, 110 ° 35 ’ 53 ’’ W 09 / I / 2007, 1 m depth. LEB-ICML-UNAM- 1579, Puente Maviri (Ahome, Sinaloa), 25 ° 34 ’ 55 ’’ N, 109 ° 06 ’ 52 ’’ W, 14 / II / 2002, 2 m depth. LEB-ICML-UNAM- 1581, Cerro de la Virgen (Topolobampo, Sinaloa), 25 ° 36 ’ 57 ’’ N, 108 ° 58 ’ 11 W, 11 / XII / 2002, 4 m depth. LEB-ICML-UNAM- 2374, Isla Talchichitle, Estero del Tlacuachon (Angostura, Sinaloa), 24 ° 54 ’ 50 ’’ N, 108 ° 06 ’ 41 ’’ W, 28 / VI / 2013, 1 m depth. LEB-ICML-UNAM- 2377, Isla Altamura, Estero la Pocita, (Angostura, Sinaloa), 24 ° 53 ’ 20 ’’ N, 108 ° 06 ’ 45 ’’, 28 / VI / 2013, 1 m depth. LEB-ICMLUNAM- 2379, Isla Altamura, Estero la Pocita (Angostura, Sinaloa), 24 ° 53 ’ 20 ’’ N, 108 ° 06 ’ 45 ’’, 28 / VI / 2013, 1 m depth.	en	Cruz-Barraza, José Antonio, Carballo, José Luis, Aguilar-Camacho, José María (2023): Taxonomy and molecular phylogenetic position of new species and new records of Coelosphaeridae (Demospongiae: Poecilosclerida) from the Mexican Pacific. Zoological Journal of the Linnean Society 199 (2): 511-532, DOI: 10.1093/zoolinnean/zlad036, URL: http://dx.doi.org/10.1093/zoolinnean/zlad036
B360D319FFE4FFCC29C87CB8DAB0019A.taxon	description	Description Encrusting, cushion-shaped, or massive amorphous sponge (from 2 to 10 cm thick), covering areas from 12 × 6 mm and up to 5 × 12 cm (Fig. 6 A, B). The surface is smooth, uneven, or completely irregular and typically sculptured with very characteristic drainage subectosomal channels (up to 1 mm in diameter), which commonly converge on the oscules. The ectosome is a thin and translucent easy detachable membrane. Oscula are circular and chimney shaped (5 – 12 mm in diameter and 6 – 10 mm high) evenly distributed on the surface. Choanosomal aquiferous canals are common, from 0.25 to 2 mm in diameter. Consistency is slightly compressible and easily torn. Colour varies from yellow to orange, green, or brown in life and becomes pale asser preservation. Skeletal characteristics Skeleton: Ectosomal skeleton is a tangential layer (from 20 – 40 µm thick) made of free tylotes, sometimes arranged in tracts (Fig. 6 C). Choanosomal structure consists of an isotropic reticulation (Fig. 6 D) made of interconnected multispicular fibres (10 – 40 µm thick) forming rectangular meshes from 60 – 90 µm in diameter. Microscleres are isochelae and sigmas dispersed without a particular organization. Spicules: Ectosomal tylotes are bent or curved, with smooth heads, sometimes with an incipient head (anisotylote) (Fig. 7 A, E). Tylotes length: 120 – (180.3) – 215 µm; shass diameter: 2.5 – (3.7) – 6.3 µm; head diameter: 3.8 – (5.5) – 8.8 µm (Table 4). Choanosomal styles are curved or straight (with the shass slightly bent in the upper third). Styles length: 125 – (165.8) – 195 µm; shass diameter 1.3 – (4.1) – 7.5 µm (Fig. 7 B, F; Table 4). Microscleres consist of contorted ‘ C’ - or ‘ S’ - shaped sigmas (Fig. 7 C, G): 15 – (25.8) – 47.5 µm, and arcuate tridentate isochelae (Fig. 7 D, H): 12.5 – (22.8) – 32.5 µm. Both types of microscleres are very variable in size, but only one size category is recognizable (Table 4).	en	Cruz-Barraza, José Antonio, Carballo, José Luis, Aguilar-Camacho, José María (2023): Taxonomy and molecular phylogenetic position of new species and new records of Coelosphaeridae (Demospongiae: Poecilosclerida) from the Mexican Pacific. Zoological Journal of the Linnean Society 199 (2): 511-532, DOI: 10.1093/zoolinnean/zlad036, URL: http://dx.doi.org/10.1093/zoolinnean/zlad036
B360D319FFE4FFCC29C87CB8DAB0019A.taxon	distribution	Distribution and habitat The species is known from the Galapagos Islands and Guaymas in the Mexican Pacific (Desqueyroux-Faúndez and Van Soest 1997). This species is widely distributed in several localities from the Gulf of California, including the shores of Baja California Sur, Sinaloa, and Jalisco (Fig. 1). Specimens were collected from hard substrates, including rocks, mangrove roots, dead corals, and artificial harbor structures; from intertidal to 9 m depth.	en	Cruz-Barraza, José Antonio, Carballo, José Luis, Aguilar-Camacho, José María (2023): Taxonomy and molecular phylogenetic position of new species and new records of Coelosphaeridae (Demospongiae: Poecilosclerida) from the Mexican Pacific. Zoological Journal of the Linnean Society 199 (2): 511-532, DOI: 10.1093/zoolinnean/zlad036, URL: http://dx.doi.org/10.1093/zoolinnean/zlad036
B360D319FFE4FFCC29C87CB8DAB0019A.taxon	discussion	Remarks Lissodendoryx albemarlensis was described from the Galapagos Islands (Eastern Pacific). In the original description, these authors analysed and synonymized a previous record of Lissodendoryx isodictyalis (Carter, 1882) reported in the Gulf of California by Dickinson (1945), increasing the species’ geographical distribution range (from Mexico to the Galapagos Islands). Here, we also reviewed a few Dickinson’s specimens and corroborated its similarity with our samples and with the original description of L. albemarlensis. Another previous record of L. (L.) isodictyalis in the Mexican Pacific was made by Carter (1882) from Acapulco. However, in his description, he did not include information about spicule measurements. In a current taxonomic revision of Lissodendoryx, Carter’s specimens from Acapulco’s locality were not found (Rützler et al. 2007). Therefore, to date is impossible to obtain precise morphological information to establish the taxonomic status of this record. Nevertheless, considering the high morphological similarity between L. (L.) isodictyalis and L. (L.) albemarlensis vs. their specific distribution (Atlantic vs. Pacific, respectively), we propose to aưribute the Acapulco’s records of L. (L.) isodictyalis by Carter to L. (L.) albemarlensis, keeping this species name for the eastern Pacific specimens and consider it different from the Caribbean L. (L.) isodictyalis.	en	Cruz-Barraza, José Antonio, Carballo, José Luis, Aguilar-Camacho, José María (2023): Taxonomy and molecular phylogenetic position of new species and new records of Coelosphaeridae (Demospongiae: Poecilosclerida) from the Mexican Pacific. Zoological Journal of the Linnean Society 199 (2): 511-532, DOI: 10.1093/zoolinnean/zlad036, URL: http://dx.doi.org/10.1093/zoolinnean/zlad036
B360D319FFE6FFCD299B7DC8D83703C7.taxon	description	Definition: Lissodendoryx with oxeas as choanosomal megascleres (Van Soest 2002).	en	Cruz-Barraza, José Antonio, Carballo, José Luis, Aguilar-Camacho, José María (2023): Taxonomy and molecular phylogenetic position of new species and new records of Coelosphaeridae (Demospongiae: Poecilosclerida) from the Mexican Pacific. Zoological Journal of the Linnean Society 199 (2): 511-532, DOI: 10.1093/zoolinnean/zlad036, URL: http://dx.doi.org/10.1093/zoolinnean/zlad036
B360D319FFE6FFD4299C7E57D84F04AF.taxon	description	(Figs 8, 9)	en	Cruz-Barraza, José Antonio, Carballo, José Luis, Aguilar-Camacho, José María (2023): Taxonomy and molecular phylogenetic position of new species and new records of Coelosphaeridae (Demospongiae: Poecilosclerida) from the Mexican Pacific. Zoological Journal of the Linnean Society 199 (2): 511-532, DOI: 10.1093/zoolinnean/zlad036, URL: http://dx.doi.org/10.1093/zoolinnean/zlad036
B360D319FFE6FFD4299C7E57D84F04AF.taxon	synonymic_list	Synonymy Damiriana hawaiiana de Laubenfels, 1950: 50. Damiriana hawaiiana Green & Gómez, 1986: 292, figs 54 – 56. Lissodendoryx (Waldoschmittia) hawaiiana Núñez, Calcinai & Gates 2017: 21.	en	Cruz-Barraza, José Antonio, Carballo, José Luis, Aguilar-Camacho, José María (2023): Taxonomy and molecular phylogenetic position of new species and new records of Coelosphaeridae (Demospongiae: Poecilosclerida) from the Mexican Pacific. Zoological Journal of the Linnean Society 199 (2): 511-532, DOI: 10.1093/zoolinnean/zlad036, URL: http://dx.doi.org/10.1093/zoolinnean/zlad036
B360D319FFE6FFD4299C7E57D84F04AF.taxon	materials_examined	Material examined MBC # 11506, West Coast of the Coconut Island, Oahu (Hawaii, USA) 15 / X / 1958, 3 m depth. LACM # 1954 - 9, Bahia Santa Lucia (Acapulco, Guerrero), 16 ° 50.59 ” N, 99 ° 55.46 ” W, 01 / I / 1954, 2 – 7 m depth, R / V VELERO IV. AHF 1596 - 54. LEB-ICML-UNAM- 147, Bahia Chacala (Chacala, Nayarit), 21 ° 9 ’ 57 ’’ N, 105 ° 13 ’ 38 ’’ W, 20 / II / 2000, 2 m depth. LEB-ICML-UNAM- 396, Punta Santiago (Manzanillo, Colima), 19 ° 5 ’ 41 ’’ N 104 ° 25 ’ 22 ’’ W, 16 / XI / 2001, 2 m depth. LEB-ICML-UNAM- 1618, Parque de la Reina (Acapulco, Guerrero), 16 ° 50 ’ 55.56 ’’ N, 99 ° 54 ’ 2.6 ’’ W, 04 / V / 2008, 5 m depth. LEB-ICML-UNAM- 1631, Isla Papagayo (Acapulco, Guerrero), 16 ° 51 ’ 16 ’’ N, 99 ° 53 ’ 05 ’’ W, 06 / IV / 2008, 6 m depth. LEB-ICML-UNAM- 1784, Farallón del Obispo (Acapulco, Guerrero), 16 ° 51 ’ 20.21 ’’ N, 99 ° 52 ’ 25.92 ’’ W, 16 / III / 2007, 5 m depth. LEB-ICML-UNAM- 1793, Isla Papagayo (Acapulco, Guerrero), 16 ° 51 ’ 18.10 ’’ N, 99 ° 55 ’ 04.75 ’’ W, 23 / III / 2007, 6 m depth. LEB-ICML-UNAM- 1806, Playa Tlacopanocha (Acapulco, Guerrero), 16 ° 50 ’ 49.71 ’’ N, 99 ° 54 ’ 28.11 ’’ W, 22 / IX / 2007, 7 m depth. LEB-ICML-UNAM- 1809, Playa Tlacopanocha (Acapulco, Guerrero), 16 ° 50 ’ 49.71 ’’ N, 99 ° 54 ’ 28.11 ’’ W, 22 / IX / 2007, 7 m depth. LEB-ICMLUNAM- 1810, Playa Tlacopanocha (Acapulco, Guerrero), 16 ° 50 ’ 40.72 ’’ N, 99 ° 54 ’ 29.28 ’’ W, 22 / IX / 2007, 2 m depth. LEB-ICML-UNAM- 1845, Playa Tlacopanocha (Acapulco, Guerrero), 16 ° 50 ’ 39. 41 ’’ N, 99 ° 54 ’ 25.00 ’’ W, 14 / IX / 2008, 2.5 m depth. LEB-ICML-UNAM- 1884, Playa La Bruja (La Paz, Baja California Sur), 24 ° 13 ’ 23 ’’ N, 110 ° 18 ’ 44 ’’ W, 25 / I / 2010, 3 m depth. LEB-ICML-UNAM- 1938, Playa la Concha (La Paz, Baja California Sur), 24 ° 12 ’ 9.91 ’’ N, 110 ° 18 ’ 2.41 ’’ W, 07 / VI / 2010, 8 m depth. LEB-ICML-UNAM- 2441, Playa la Concha (La Paz, Baja California Sur), 24 ° 12 ’ 9.91 ’’ N, 110 ° 18 ’ 2.41 ’’ W, 17 / IX / 2012, 4 m depth. LEB-ICML-UNAM- 2447 Playa la Concha (La Paz, Baja California Sur), 24 ° 12 ’ 9.91 ’’ N, 110 ° 18 ’ 2.41 ’’ W, 17 / IX / 2012, 2 m depth. LEB-ICML-UNAM- 3055, La Entrega (Oaxaca), 15 ° 42 ’ 50 ’’ N, 96 ° 05 ’ 20 ’’ W, 22 / X / 2014, 4 m depth.	en	Cruz-Barraza, José Antonio, Carballo, José Luis, Aguilar-Camacho, José María (2023): Taxonomy and molecular phylogenetic position of new species and new records of Coelosphaeridae (Demospongiae: Poecilosclerida) from the Mexican Pacific. Zoological Journal of the Linnean Society 199 (2): 511-532, DOI: 10.1093/zoolinnean/zlad036, URL: http://dx.doi.org/10.1093/zoolinnean/zlad036
B360D319FFE6FFD4299C7E57D84F04AF.taxon	description	Description: Encrusting, cushion-shaped, or massive sponge (from 1 to 4 cm thick), covering areas from 2 to 17 cm in maximum diameter (Fig. 8 A, B). The surface is uneven, with small raised ridges (1 to 1.5 mm) running homogeneously over the body. Small ostial-pores (from 1 – 2 mm in diameter) are regularly distributed on the surface. Oscules are circular to oval in shape from 2 to 7 mm in diameter and slightly elevated from the surface (from 1.5 to 2.1 cm high). Ectosomal membrane is flexible and resistant in live specimens. Consistency is briưle. Mucous in live specimens. It is compressible and elastic asser fixation. Colour in life orange and pale in preserved specimens. Skeletal characteristics Skeleton: Ectosomal skeleton is a layer (20 µm thick) of tylotes arranged tangentially including dispersed microscleres (Fig. 8 C). Choanosomal skeleton is an isotropic reticulation formed by oxeas in multispicular primary tracts (40 – 90 µm thick) interconnected by secondary pauci-multispicular tracts (20 – 60 µm thick). ºuadrangular meshes are from 80 to 250 µm wide (Fig. 8 D). Microscleres are sigmas and isochelae, dispersed in the body without any special organization. Spicules: Ectosomal tylotes are straight or slightly curved, with smooth heads (Fig. 9 A), sometimes with an incipient head (anisotylote). Tylotes length: 165 – (190.2) – 235 µm; shass diameter: 1.3 – 7.5 µm; head diameter: 3.8 – 8 µm. Choanosomal oxeas are fusiform with hastate tips or slightly curved with acerate tips, both with tapered ends (Fig. 9 B). Oxeas with blunt tips and style forms are also present. In addition, slender and slightly smaller oxeas also appear; probably immature spicules. General oxeas length: 128 – 250 µm; shass diameter: 1.3 – 10 µm. Microscleres are sigmas and isochelae. Sigmas are in two categories: Sigmas I; small ‘ C-S’ - shaped with small denticle at the ends, from 10 to 25 µm (Fig. 9 C). Sigmas II; very scarce and only were found in a few specimens, they are larger than Sigma I, with regular C-shaped and robust chord, from 35 – 40 µm. Arcuate tridentate isochelae from 10 – 37 µm (Fig. 9 D; Table 5).	en	Cruz-Barraza, José Antonio, Carballo, José Luis, Aguilar-Camacho, José María (2023): Taxonomy and molecular phylogenetic position of new species and new records of Coelosphaeridae (Demospongiae: Poecilosclerida) from the Mexican Pacific. Zoological Journal of the Linnean Society 199 (2): 511-532, DOI: 10.1093/zoolinnean/zlad036, URL: http://dx.doi.org/10.1093/zoolinnean/zlad036
B360D319FFE6FFD4299C7E57D84F04AF.taxon	distribution	Distribution and habitat Lissodendoryx (Waldoschmittia) hawaiiana is distributed in the Pacific Region, from Hawaii to Mazatlán Bay (Mexico) (Laubenfels 1950, Green and Gomez 1986, Núñez et al. 2017). In Mexico, this species is growing over rocky substrates, mainly on coral reef areas, from La Paz (BCS) to La Entrega (Oaxaca), and from 2 to 8 m in depth (Fig. 1). Except for the sample collected in Bahia Chacala (Nayarit), which was found on a small harbour.	en	Cruz-Barraza, José Antonio, Carballo, José Luis, Aguilar-Camacho, José María (2023): Taxonomy and molecular phylogenetic position of new species and new records of Coelosphaeridae (Demospongiae: Poecilosclerida) from the Mexican Pacific. Zoological Journal of the Linnean Society 199 (2): 511-532, DOI: 10.1093/zoolinnean/zlad036, URL: http://dx.doi.org/10.1093/zoolinnean/zlad036
B360D319FFE6FFD4299C7E57D84F04AF.taxon	discussion	Remarks: Lissodendoryx (Waldoschmittia) hawaiiana was initially described from Hawaii (as Damiriana hawaiiana) by de Laubenfels, 1950. Later, it was recorded in Mexican Pacific waters by Green and Gomez (1986). Asserwards, Van Soest (2002) re-examined the holotype of D. hawaiiana and proposed its synonymy with Lissodendoryx schmidti (Ridley, 1884), which was described in Australia and later considered of wide distribution. Recently, Núñez et al. (2017) reviewed new Hawaiian specimens of this species and resurrected L. (W.) hawaiiana based on two differences in the spicule morphologies compared to L. schmidti: (1) the presence of small sigmas characterized by small denticles at the extremities, which were also detected by de Laubenfels (1950) and Van Soest (2002); (2) the shape of the isochelae, which is slightly straighter in L. (W.) hawaiiana. The Mexican specimens matched the original and recent description of L. (W.) hawaiiana, in addition to the high similarity of the 28 S sequences. Molecular phylogenetic relationships Here, we provide DNA sequences of 28 S rDNA for Celtodoryx chichiltik sp. nov. domains C 1 – C 2 (paratype LEB-ICML-UNAM- 850; GenBank accession: OP 715763) and for two Lissodendoryx species domains, C 1 – D 2: two specimens of L. (L.) albemarlensis (LEB-ICML-UNAM- 2374, 2379; GenBank accessions: OP 740709, OP 740710, respectively), and three specimens of L. (W.) hawaiiana (LEB-ICMLUNAM- 2441, 2447, and 3055; GenBank accessions: OP 704020, OP 704019, OP 704021, respectively). A COI sequence of L. (L.) albemarlensis (specimen LEB-ICML-UNAM- 2374; GenBank accession: OP 715763) is also included (see Table 1). We aimed to establish their molecular taxonomy and their phylogenetic relationships within the order Poecilosclerida. The multiple 28 S sequence alignments resulted in 848 bp in length, 449 were variable sites, with 353 parsimony-informative. Meanwhile, COI alignments consisted of 559 bp, with 272 variable sites 202 were parsimony-informative. The phylogenetic trees for each locus were mainly congruent between BI and ML, respectively, although there were some low-supported branches retrieved in the ML trees. The Posterior Probability (PP) obtained from BI, followed by the Bootstrap Proportion (BP) from the ML analysis, are shown at each node of the phylogenetic trees presented (BP / PP; Figs 10, 11). Our molecular results for both loci were according to previous molecular studies, which showed that most of the families of the order Poecilosclerida were not retrieved as monophyletic (Morrow et al. 2012, Redmond et al. 2013, Taker et al. 2013). Similarly, members of the family Coelosphaeridae were clustered separately or in small groups throughout the topologies. In the 28 S tree (Fig. 10), neither Lissodendoryx nor Celtodoryx were retrieved as monophyletic, and the species of both genera were clustered together with other Poecilosclerida species, forming at least two well-supported Coelosphaeridae main clades. One of these main clades (98 % PP / 74 % BP) is subdivided in one subclade (94 % PP / 69 % BP) that contains Hymedesmia pansa Bowerbank, 1882 (Hymedesmiidae) and an unresolved polytomy containing sequences of Celtodoryx chichiltik sp. nov., Acanthancora sp. (Hymedesmiidae), and a small group formed by Lissodendoryx (Acanthodoryx) fibrosa (Lévi, 1961) and an unidentified specimen belonging to the genus Lissodendoryx. The other subclade (98 % PP / 89 % BP) contains sequences of Lissodendoryx (Ectyodoryx) arenaria Burton, 1936, Crella incrustans (Carter, 1885) (Crellidae) and Plocamiancora arndti Alander, 1942 (Myxillidae). The second main clade (100 % PP / 89 % BP) contains sequences of Celtodoryx ciocalyptoides, Tedania sp., two species of the genus Myxilla Schmidt, 1862, and a subclade (robust in PP 91 %, but low-supported in BP 52 %) mainly containing Coelosphaeridae sequences, where Forcepia sp. was grouped as a sister clade of a well-supported group (100 % PP / 99 % BP) formed by Lissodendoryx spp. (including our sequences), and a sequence of Mycale fibrexilis Wilson, 1894 (Mycalidae) that perhaps could be a misidentified specimen (see Discussion). Specifically, our L. (L.) albemarlensis sequence was clustered with M. fibrexilis and L. (A.) sigmata, while our sequences of L. (W.) hawaiiana were grouped with its Hawaiian conspecific sequence (Fig. 10). The nucleotide variation between Mexican and Hawaiian specimens is in three polymorphic sites of the D 2 domain (Table 6). Other Coelosphaeridae sequences such as Lissodendoryx (Lissodendoryx) complicata (Hansen, 1885) and Inflatella sp. were clustered in different molecular clades. For the COI topology, the genus Lissodendoryx was also shown as non-monophyletic. Albeit most species of this genus were grouped in a well-supported (100 % PP / 100 % BP) clade, at least one sequence of Lissodendoryx flabellata Burton, 1929 was clustered separately in a different molecular clade (Fig. 11). In this molecular tree, a sequence of M. fibrexilis (from the same specimen as the 28 S sequence) was clustered with L. (L.) isodictyalis. They formed a sister group of a large and low-supported clade (53 % PP / <50 % BP) that included several Lissodendoryx sequences: L. (A.) sigmata, Lissodendoryx (Lissodendoryx) colombiensis Zea & van Soest, 1986, L. (W.) hawaiiana, our L. (L.) albemarlensis, and four unidentified Lissodendoryx spp. In addition, some unidentified sequences (named Demospongiae species) showed high nucleotide similarities with our sequences. So, we include them in the molecular analysis, suggesting that these unidentified sequences could be species belonging to the genus Lissodendoryx.	en	Cruz-Barraza, José Antonio, Carballo, José Luis, Aguilar-Camacho, José María (2023): Taxonomy and molecular phylogenetic position of new species and new records of Coelosphaeridae (Demospongiae: Poecilosclerida) from the Mexican Pacific. Zoological Journal of the Linnean Society 199 (2): 511-532, DOI: 10.1093/zoolinnean/zlad036, URL: http://dx.doi.org/10.1093/zoolinnean/zlad036
