identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
0E229813FFC0FFDCB4C9CC61FAD2FD45.text	0E229813FFC0FFDCB4C9CC61FAD2FD45.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Discorhabdella ruetzleri Díaz & Pomponi 2018	<div><p>Discorhabdella ruetzleri n. sp.</p><p>(Figure 2)</p><p>Material collected: Holotype HBOM 003:02021 (sample 10 – V – 15 – 2 – 021). Type locality: Gulf of Mexico, north Pulley Ridge, 80 m deep, on a ledge. Mohawk ROV dive 149. Collected by John Reed. Coordinates: latitude 25 0 16.8990 N, longitude 83 0 37.7850 W.</p><p>Etymology: the species is named in honor of Dr. Klaus Rützler, our mentor and an important contributor to the knowledge of sponges from the Caribbean and world-wide.</p><p>External morphology: thinly encrusting (1–3 mm) with amorphous, bulgy protuberances (Fig. 2A). Surface prominently hispid microscopically. Orange reddish color alive; white in spirit.</p><p>Spicules: long principal tylostyles to subtylostyles with predominantly smooth tyles, and less abundant slightly tuberose tyles in a ratio of 7:1 (Fig. 2B); principal subtylostyles measure 470– 598 –810 x 5 –10.5–13 µm in length and width; small ectosomal substylostyles with smooth elongated tyles (260– 300 –340 x 3–4 –7.55 µm), sigmas (12–18 x &lt;1 µm), pseudoastrose acanthostyles, with elongated terminal or apical spine, measuring 17 – 29.6 – 40 x 2.5 – 5 – 7.5 µm, with spiny heads 7.5 – 15 – 20 µm wide (Fig. 2C, D); some pseudoastrose acanthostyles with a smoothly elongated apical spine, others with spiny areas distal from the terminal end of the apical spine (Fig. 2C, E); several smaller smooth forms of the acanthostyles are considered early growth forms of this spicule category. Extremely thin microspined oxea (15–18 µm &lt;1 µm) (Fig. 2F). Rare anchorate isochela (20–25 x 1.5 µm), not seen in the spicule preparations, but observed on a section of the skeleton.</p><p>Skeleton: The skeletal arrangement consists of a hymedesmoid arrangement of a single layer of large principal tylostyles to subtylostyles, which pierce the sponge surface. The tyles of the principal megascleres are embedded in a spongin layer that is also echinated by densely packed pseudoastrose acanthostyles; ectosomal smooth subtylostyles are around and between the principal choanosomal subtylostyles. Sigmas and microxea are abundant in the ectosome. Two isochelae observed in the choanosme in one transversal section.</p><p>Remarks: Pseudoastrose acanthostyles typical of genus, and with the apical spine described for D. hindei Boury-Esnault, Pansini &amp; Uriz, 1992 and D. urizae Maldonado, Carmona, Van Soest, &amp; Pomponi 2001 are abundant in this species (Fig. 2C). The species presents skeletal similarities to D. urizae and D. littoralis, the two species described from the eastern Pacific side of Panama. D. ruetzleri n. sp. is very similar in skeletal composition to D. urizae Maldonado et al. 2001, a dark red thin crust originally collected on a boulder between 53 – 75 m deep in the Gulf of Chiriqui, off the Pacific coast of Panama, and later collected from the Gulf of California at 344 m (Aguilar-Camacho et al. 2012). The main difference between D. ruetzleri n. sp. and D. urizae is the predominance of smooth tylostyles (both ectosomal and choanosomal) in D. ruetzleri n. sp. versus the predominant and strongly tuberose tyles of D. urizae principal choanosomal tylostyles. The species are futher distinguished by the thickness of the principal tylostyles and the considerably smaller microoxea in D. ruetzleri n. sp. (Table 1). The discretely spined microxea of D. urizae and the shape and size of the pseudoastrose acanthostyles, with the spinose bulgy tyle and shortened spined base are very similar to D. ruetzleri n. sp., suggesting a potential common origin of these two species. D. littoralis Maldonado et al. 2001 from the eastern Pacific lacks isochela, while in D. ruetzleri n. sp. they are very rare but observed in one skeletal section. The smooth subtylostyles of D. littoralis share similarity with the subtylostyles of D. ruetzleri n. sp. The color in D. urizae is described as dark red, and D. littoralis is bright red orange, while for D. ruetzleri n. sp. the color is orange reddish that in spirit becomes completely white.</p></div>	https://treatment.plazi.org/id/0E229813FFC0FFDCB4C9CC61FAD2FD45	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Díaz, M. Cristina;Pomponi, Shirley A.	Díaz, M. Cristina, Pomponi, Shirley A. (2018): New Poecilosclerida from mesophotic coral reefs and the deep-sea escarpment in the Pulley Ridge region, eastern Gulf of Mexico: Discorhabdella ruetzleri n. sp. (Crambeidae) and Hymedesmia (Hymedesmia) vaceleti n. sp. (Hymedesmiidae). Zootaxa 4466 (1): 229-237, DOI: 10.11646/zootaxa.4466.1.17
0E229813FFC6FFDFB4C9C8CBFDA2FF5C.text	0E229813FFC6FFDFB4C9C8CBFDA2FF5C.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Hymedesmia (Hymedesmia) vaceleti Díaz & Pomponi 2018	<div><p>Hymedesmia (Hymedesmia) vaceleti n. sp.</p><p>(Figure 3)</p><p>Material collected: Holotype HBOM 0 0 3:0 2020 (sample 19 – IX – 11 – 1 – 007).</p><p>Type locality: Gulf of Mexico, south of Pulley Ridge, 773 m deep, escarpment, on sediment. Collected by John Reed and Shirley Pomponi. Coordinates: latitude 24 0 39.600 N, longitude 83o55.0420 W.</p><p>Etymology: The species is named in honor of Dr. Jean Vacelet, our mentor and an important contributor to the knowledge of sponge systematics and ecology from the Mediterranean, the Indian Ocean and the Caribbean.</p><p>External morphology: Blue, with irregular whitish spots, thin crust (1 mm thick), forming small patches (1 – 4 cm 2), growing over snails, sides of solitary corals, and calcareous tubes (Fig. 3A). Surface smooth and shiny. Discretely microhispid microscopically.</p><p>Spicules: Large acanthostyles (280 –– 345 – 400 x 10 – 10.3 – 12.5 µm), with inflated head and large tuberculated spines (30 – 35 µm diameter) (Fig. 3C); smaller acanthostyles (100 – 137 – 150 x 7.5 – 9 – 10 µm) with spiny heads (12.5 – 15 µm in diameter) microspined all along (Fig. 3D); tornotes with stongyloid to styloid morphology (370 – 461 – 540 x 7.5 – 8 – 10 µm) (Fig. 3B); abundant arcuate isochela 45 – 60 µm long, and a thick flattened shaft 5 – 10 µm thick (Fig. 3E – F).</p><p>Skeleton: An hymedesmioid arrangement of large and small acanthostyles, that stand singly erect on a strong spongin basal layer, and tornotes that are strewn in the choanosome and in the ectosome (Fig. 3C).</p><p>Remarks: The combination of an intense blue color, large tornotes (&gt; 400 µm in length), and the size of the acanthostyles differentiate H. (H.) vaceleti n.sp. from other Hymedesmia spp. from the western Atlantic (Table 2). The closest species among the previously described Hymedesmia (Table 2) is H. (H.) nummota De Laubenfels 1936, a thin pale gray crust (0.5 – 2 mm thick), with an irregularly lumpy surface growing on a piece of dead coral, collected in deep water (1047 m) off the coast of Florida (between Dry Tortugas and Cuba). The other seven species of Hymedesmia currently described from the western Atlantic have considerably smaller and thinner tornotes (&lt;255 µm in length, and &lt;4 µm in width). The three categories of megascleres in H. (H). nummota differ in size ranges from those in H. (H.) vaceleti n. sp. The size of the two types of acanthotylostyles of H. (H.) nummota are triple the length of those in H. (H.) vaceleti n. sp., while the tornote strongyloids of H. (H.)vaceleti n. sp. can be 100 µm smaller than those in H. (H.) nummota . The size range of tornotes is very conserved and a significant character that distinguishes the different species of Hymedesmia from the western Atlantic (Van Soest, 2009). Therefore, taking into account the tremendous disparity in the size of acanthotylostyles and the distinct blue color of H. (H.) vaceleti, we consider these differences sufficient evidence to classify the Pulley Ridge specimen as a different species from H.(H.) nummota .</p></div>	https://treatment.plazi.org/id/0E229813FFC6FFDFB4C9C8CBFDA2FF5C	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Díaz, M. Cristina;Pomponi, Shirley A.	Díaz, M. Cristina, Pomponi, Shirley A. (2018): New Poecilosclerida from mesophotic coral reefs and the deep-sea escarpment in the Pulley Ridge region, eastern Gulf of Mexico: Discorhabdella ruetzleri n. sp. (Crambeidae) and Hymedesmia (Hymedesmia) vaceleti n. sp. (Hymedesmiidae). Zootaxa 4466 (1): 229-237, DOI: 10.11646/zootaxa.4466.1.17
