taxonID	type	description	language	source
03EC8788FA0A3846FF7BA438FD0290B8.taxon	discussion	Remarks. This species is distinguished from the other species of Eucopia by the distal segment of the uropodal exopods which is about as long as broad, and the outer margin of the proximal segment without medial pointed protuberance (Dana 1852; San Vicente 2016).	en	Yolanda, Rofiza, Lheknim, Vachira, Price, W. Wayne, Hendrickx, Michel E. (2023): The lophogastrids (Crustacea: Peracarida: Lophogastrida) of Indonesia and its adjacent waters. An updated checklist. Zootaxa 5330 (3): 413-429, DOI: 10.11646/zootaxa.5330.3.5, URL: http://dx.doi.org/10.11646/zootaxa.5330.3.5
03EC8788FA093846FF7BA208FAEF9258.taxon	discussion	Remarks. This species is distinguished from other species of Eucopia by the penultimate large spine on each side of telson, separated from the terminal setae by less than five small setae (Nouvel 1942; San Vicente 2016).	en	Yolanda, Rofiza, Lheknim, Vachira, Price, W. Wayne, Hendrickx, Michel E. (2023): The lophogastrids (Crustacea: Peracarida: Lophogastrida) of Indonesia and its adjacent waters. An updated checklist. Zootaxa 5330 (3): 413-429, DOI: 10.11646/zootaxa.5330.3.5, URL: http://dx.doi.org/10.11646/zootaxa.5330.3.5
03EC8788FA093846FF7BA128FC15931C.taxon	discussion	Remarks. This species is distinguished from other species of Eucopia by the eyes twice or less as broad as long. The distal segment of the uropodal exopod is broader than long, and the outer margin of the proximal segment has one medial pointed protuberance (Hansen 1910; San Vicente 2016).	en	Yolanda, Rofiza, Lheknim, Vachira, Price, W. Wayne, Hendrickx, Michel E. (2023): The lophogastrids (Crustacea: Peracarida: Lophogastrida) of Indonesia and its adjacent waters. An updated checklist. Zootaxa 5330 (3): 413-429, DOI: 10.11646/zootaxa.5330.3.5, URL: http://dx.doi.org/10.11646/zootaxa.5330.3.5
03EC8788FA093846FF7BA0ECFE2E950B.taxon	distribution	Records from Indonesia. Papua, western part of Sumatra Island, between West Sumatra and Siberut Island, southern part of Sumatra water and northern Keeling Island water, eastern part of Jamdena Island (Arafura Sea), Banda Sea, Maluku Sea, Celebes Sea, south of Java Island and Aceh water (Illig 1930; Fage 1942; Taniguchi 1974; Casanova 1996; Wittmann 2020 a). Depth range: 1244 – 7120 m.	en	Yolanda, Rofiza, Lheknim, Vachira, Price, W. Wayne, Hendrickx, Michel E. (2023): The lophogastrids (Crustacea: Peracarida: Lophogastrida) of Indonesia and its adjacent waters. An updated checklist. Zootaxa 5330 (3): 413-429, DOI: 10.11646/zootaxa.5330.3.5, URL: http://dx.doi.org/10.11646/zootaxa.5330.3.5
03EC8788FA093846FF7BA0ECFE2E950B.taxon	discussion	Remarks. Eucopia sculpticauda is recognized by the telson having 1 – 2 lateral constrictions near the apex, and by the dorsal surface of the telson ornamented with a series of honeycomb ridges (W. M. Tattersall & O. S. Tattersall 1951; San Vicente 2016).	en	Yolanda, Rofiza, Lheknim, Vachira, Price, W. Wayne, Hendrickx, Michel E. (2023): The lophogastrids (Crustacea: Peracarida: Lophogastrida) of Indonesia and its adjacent waters. An updated checklist. Zootaxa 5330 (3): 413-429, DOI: 10.11646/zootaxa.5330.3.5, URL: http://dx.doi.org/10.11646/zootaxa.5330.3.5
03EC8788FA093846FF7BA6DFFDB896B4.taxon	distribution	Records from Indonesia. South Sulawesi, Banda Sea (Hansen 1910), between southern part of Sumatra water and northern Keeling Island water (Illig 1930), Papua, Seram Sea, Celebes Sea and northern part of Lombok Island (Fage 1942), West of Sumatra Island (Taniguchi 1974). Depth range: 593 – 7120 m.	en	Yolanda, Rofiza, Lheknim, Vachira, Price, W. Wayne, Hendrickx, Michel E. (2023): The lophogastrids (Crustacea: Peracarida: Lophogastrida) of Indonesia and its adjacent waters. An updated checklist. Zootaxa 5330 (3): 413-429, DOI: 10.11646/zootaxa.5330.3.5, URL: http://dx.doi.org/10.11646/zootaxa.5330.3.5
03EC8788FA093846FF7BA6DFFDB896B4.taxon	discussion	Remarks. Eucopia unguiculata can be recognized by its telson which is narrowly truncate and armed with 10 to 15 small regular spines in the space between the distal large marginal spine and the apical spine (Tattersall & Tattersall 1951; San Vicente 2016).	en	Yolanda, Rofiza, Lheknim, Vachira, Price, W. Wayne, Hendrickx, Michel E. (2023): The lophogastrids (Crustacea: Peracarida: Lophogastrida) of Indonesia and its adjacent waters. An updated checklist. Zootaxa 5330 (3): 413-429, DOI: 10.11646/zootaxa.5330.3.5, URL: http://dx.doi.org/10.11646/zootaxa.5330.3.5
03EC8788FA083847FF7BA264FCC49326.taxon	distribution	Records from Indonesia. Between West Sumatra and Siberut Island (Illig 1930), Seram Sea, Celebes Sea (Fage 1941), West of Sumatra Island (Taniguchi 1974) and Makassar Strait (Băcescu 1991). Depth range: 746 – 4940 m.	en	Yolanda, Rofiza, Lheknim, Vachira, Price, W. Wayne, Hendrickx, Michel E. (2023): The lophogastrids (Crustacea: Peracarida: Lophogastrida) of Indonesia and its adjacent waters. An updated checklist. Zootaxa 5330 (3): 413-429, DOI: 10.11646/zootaxa.5330.3.5, URL: http://dx.doi.org/10.11646/zootaxa.5330.3.5
03EC8788FA083847FF7BA264FCC49326.taxon	discussion	Remarks. Previously, this species was included in the genus Gnathophausia, but based on morphological and molecular evidence, a new genus, Fagegnathopausia, was erected to accommodate this species (Petryashov 2015). The genus Fagegnathophausia differs from the other two genera in Gnathophausiidae by a sharply serrated median dorsal keel of carapace, presence of a dorsal spiniferous ridge by the rostrum base, longer basal segment of maxillula endopod, which is three times as long as distal segment, wider oval distal segment of the maxillula endopod, presence of large spatulate exopod on maxilliped, differentiated pereopodal dactyli, which are coneshaped on pereopods 2 – 3 and stylet-shaped on pereopods 4 – 8, presence of spines on the inner margin of uropodal sympodite and crown shaped apex of telson (Petryashov 2015).	en	Yolanda, Rofiza, Lheknim, Vachira, Price, W. Wayne, Hendrickx, Michel E. (2023): The lophogastrids (Crustacea: Peracarida: Lophogastrida) of Indonesia and its adjacent waters. An updated checklist. Zootaxa 5330 (3): 413-429, DOI: 10.11646/zootaxa.5330.3.5, URL: http://dx.doi.org/10.11646/zootaxa.5330.3.5
03EC8788FA083847FF7BA743FD329556.taxon	discussion	Remarks. Gnathophausia elegans can be recognized by two main characteristics: the ventrolateral keels on the carapace extend post-dorsally and merge into the marginal keels, and the sixth abdominal pleura is armed with a posterior ventral spine (Meland & Aas 2013).	en	Yolanda, Rofiza, Lheknim, Vachira, Price, W. Wayne, Hendrickx, Michel E. (2023): The lophogastrids (Crustacea: Peracarida: Lophogastrida) of Indonesia and its adjacent waters. An updated checklist. Zootaxa 5330 (3): 413-429, DOI: 10.11646/zootaxa.5330.3.5, URL: http://dx.doi.org/10.11646/zootaxa.5330.3.5
03EC8788FA083847FF7BA62BFDDE974E.taxon	discussion	Remarks. This species resembles G. elegans, however, the ventrolateral keels on the carapace of G. fagei do not merge into the posterior marginal keels and the sixth abdominal pleura is armed with a medial ventral spine (Meland & Aas 2013). Băcescu (1991) correctly described a new subspecies for the material of G. elegans he examined from the Makassar strait: G. elegans fagei Băcescu, 1991. The holotype of this new subspecies is deposited in the Museum National of Natural History, Paris, France. Casanova (1996) followed the opinion of Băcescu (1991) and upgraded “ fagei ” to full-species status. However, he cited G. fagei as a new species, referring to the same type material as Băcescu (1991). Because the description of “ fagei ” by Băcescu (1991) is valid, its description should be attributed to him and not to Casanova.	en	Yolanda, Rofiza, Lheknim, Vachira, Price, W. Wayne, Hendrickx, Michel E. (2023): The lophogastrids (Crustacea: Peracarida: Lophogastrida) of Indonesia and its adjacent waters. An updated checklist. Zootaxa 5330 (3): 413-429, DOI: 10.11646/zootaxa.5330.3.5, URL: http://dx.doi.org/10.11646/zootaxa.5330.3.5
03EC8788FA083840FF7BA423FBBB915C.taxon	discussion	Remarks. Gnathophausia longispina can be recognized from his congeners by the spine on the antennal scale which projects well beyond the apex and is heavily serrated along the entire margin. The antennal spine of the carapace is missing or very small. There is a large, triangular branchiostegal spine and two additional spines on each side of the anterior pleura of the sixth abdominal segment (Meland & Aas 2013).	en	Yolanda, Rofiza, Lheknim, Vachira, Price, W. Wayne, Hendrickx, Michel E. (2023): The lophogastrids (Crustacea: Peracarida: Lophogastrida) of Indonesia and its adjacent waters. An updated checklist. Zootaxa 5330 (3): 413-429, DOI: 10.11646/zootaxa.5330.3.5, URL: http://dx.doi.org/10.11646/zootaxa.5330.3.5
03EC8788FA0F3840FF7BA22DFB1B9344.taxon	distribution	Records from Indonesia. Northern part of Nusa Tenggara Barat Island, Banda Sea, Timor Sea (Hansen 1910), Northern part of Nias Island (Illig 1930), Celebes Sea, Seram Sea, Northern part of Lombok Island (Fage 1941) and between Kei Kecil and Kei Besar Islands, southern parts of Jamdena Island, Arafura Sea (Casanova 1996). Depth range: 230 – 7120 m.	en	Yolanda, Rofiza, Lheknim, Vachira, Price, W. Wayne, Hendrickx, Michel E. (2023): The lophogastrids (Crustacea: Peracarida: Lophogastrida) of Indonesia and its adjacent waters. An updated checklist. Zootaxa 5330 (3): 413-429, DOI: 10.11646/zootaxa.5330.3.5, URL: http://dx.doi.org/10.11646/zootaxa.5330.3.5
03EC8788FA0F3840FF7BA22DFB1B9344.taxon	discussion	Remarks. This species is very close to G. scapularis Ortmann, 1906, but in G. zoea, the carapace does not have conspicuous swollen branchiostegal lobes as seen in G. scapularis (Meland & Aas 2013).	en	Yolanda, Rofiza, Lheknim, Vachira, Price, W. Wayne, Hendrickx, Michel E. (2023): The lophogastrids (Crustacea: Peracarida: Lophogastrida) of Indonesia and its adjacent waters. An updated checklist. Zootaxa 5330 (3): 413-429, DOI: 10.11646/zootaxa.5330.3.5, URL: http://dx.doi.org/10.11646/zootaxa.5330.3.5
03EC8788FA0F3840FF7BA0DDFC389512.taxon	distribution	Records from Indonesia. Between southern part of Sumatra water and northern Keeling Island (Illig 1930), Papua, Maluku Sea, Banda Sea, Celebes Sea, Makassar Strait, northern part of Lombok Island, southern part of Bali Island, western part of Sumatra Island (Fage 1941) and Arafura Sea (Casanova 1996). Depth range: 676 – 7120 m.	en	Yolanda, Rofiza, Lheknim, Vachira, Price, W. Wayne, Hendrickx, Michel E. (2023): The lophogastrids (Crustacea: Peracarida: Lophogastrida) of Indonesia and its adjacent waters. An updated checklist. Zootaxa 5330 (3): 413-429, DOI: 10.11646/zootaxa.5330.3.5, URL: http://dx.doi.org/10.11646/zootaxa.5330.3.5
03EC8788FA0F3840FF7BA0DDFC389512.taxon	discussion	Remarks. This species shares a similar morphology with its ally, N. gigas, but in N. ingens both the anterior and posteroventral lobes of the pleural plates of abdominal segments 2 – 5 are pointed and the antennal scale is ovate or subovate, tapering into a short pointed apex (Meland & Aas 2013).	en	Yolanda, Rofiza, Lheknim, Vachira, Price, W. Wayne, Hendrickx, Michel E. (2023): The lophogastrids (Crustacea: Peracarida: Lophogastrida) of Indonesia and its adjacent waters. An updated checklist. Zootaxa 5330 (3): 413-429, DOI: 10.11646/zootaxa.5330.3.5, URL: http://dx.doi.org/10.11646/zootaxa.5330.3.5
03EC8788FA0F3841FF7BA576FC949378.taxon	discussion	Remarks. Pseudochalaraspidum hanseni Birstein and Chindonova, 1962 and Chalaraspidum alatum (Willemoes-Suhm 1876) belong to two monotypic genera that have a confused history as detailed by W. M. Tattersall (1951) and Richter (2003). Willemoes-Suhm (1874) briefly described the latter species in 1874 from a specimen collected by the Challenger Expedition in the southern Indian Ocean. The specimen had been lost by the time G. O. Sars, in 1885, described the species in more detail based on notes and illustrations found in the papers of R. Willemoes-Suhm after his death. Both Hansen (1912) and Fage (1939, 1941) examined small numbers (all males) of specimens from the “ Albatross ” and “ Dana ” expeditions, respectively, and identified them as Chalaraspidum alatum. W. M. Tattersall (1951) examined three specimens (all immatures) from the “ Albatross ” expedition and concluded that the two specimens from Japan were the ‘ true’ Chalaraspidum alatum, but the third, from off the coast of California, agreed closely with the descriptions of Hansen (1912) and Fage (1939, 1941) and represented a different species. However, he declined to describe a new species. Banner (1954) made the same decision after examining four immature specimens collected from the Hancock Foundation surveys in Baja California, Mexico although the specimens agreed closely with the descriptions of Hansen and Fage. In 1958, Birstein and Tchindonova concluded that the species described by H. J. Hansen and L. Fage was the same as the original Challenger specimen and different from Tattersall’s two Japanese specimens and the four specimens they collected from the Northwest Pacific. They proposed that these latter six specimens belonged to a new species, Parachalaraspis vitjazi. Later, Birstein and Tchindonova (1962) reconsidered their opinion and proposed that P. vitjazi and the species described by Willemoes-Suhm were the same species, namely Chalaraspidum alatum. In the same paper, they proposed the name Pseudochalaraspidum hanseni for the “ Albatross ” and “ Dana ” specimens described by H. J. Hansen and L. Fage. Pseudochalaraspidum hanseni can be distinguished from Chalaraspidum alatum as follows: in P. hanseni, the outer margin of the antennal scale has 9 – 12 teeth, the frontal margin of the carapace is convex and may be without or with minute serrations, the epimera of the last abdominal somite has two distinct and pointed projections, the mandible has a reduced molar process and the palp of the second maxilla has one article with three setae. For C. alatum, the outer margin of the antennal scale is armed with 2 – 4 teeth, the frontal margin of the carapace is serrated and concave, the epimera of the last abdominal somite at the middle part is armed with one small projection, the mandible has a well-developed molar process and the palp of the second maxilla is divided into two articles and bears several setae on the distal segment (Richter 2003).	en	Yolanda, Rofiza, Lheknim, Vachira, Price, W. Wayne, Hendrickx, Michel E. (2023): The lophogastrids (Crustacea: Peracarida: Lophogastrida) of Indonesia and its adjacent waters. An updated checklist. Zootaxa 5330 (3): 413-429, DOI: 10.11646/zootaxa.5330.3.5, URL: http://dx.doi.org/10.11646/zootaxa.5330.3.5
03EC8788FA0E3841FF7BA091FE2F94A8.taxon	discussion	Remarks. This species is morphologically similar to L. typicus. However, L. inermis can be recognized by its apical antennal scale bearing a strong, straight spine with 2 serrate small spines on the distal part of the outer margin. The lateral margin of the telson is slightly narrowing from the middle to posterior parts and is armed with a few short setae; the apical plate bears 4 apical spines and the middle part is armed with 4 short spinules and 2 long bristles (Casanova 1996).	en	Yolanda, Rofiza, Lheknim, Vachira, Price, W. Wayne, Hendrickx, Michel E. (2023): The lophogastrids (Crustacea: Peracarida: Lophogastrida) of Indonesia and its adjacent waters. An updated checklist. Zootaxa 5330 (3): 413-429, DOI: 10.11646/zootaxa.5330.3.5, URL: http://dx.doi.org/10.11646/zootaxa.5330.3.5
03EC8788FA0E3841FF7BA679FCAD96D2.taxon	distribution	Records from Indonesia. Halmahera Sea, Seram Sea and northern entrance of Buton Strait (south Sulawesi). Depth range: 75 – 141 m (Hansen 1910).	en	Yolanda, Rofiza, Lheknim, Vachira, Price, W. Wayne, Hendrickx, Michel E. (2023): The lophogastrids (Crustacea: Peracarida: Lophogastrida) of Indonesia and its adjacent waters. An updated checklist. Zootaxa 5330 (3): 413-429, DOI: 10.11646/zootaxa.5330.3.5, URL: http://dx.doi.org/10.11646/zootaxa.5330.3.5
03EC8788FA0E3841FF7BA679FCAD96D2.taxon	discussion	Remarks. Lophogaster intermedius is very similar to L. inermis, but the apex of the antennal scale of the former species features a short, sharp spine with 4 to 6 small, serrate spines on the distal part of the outer margin. The lateral margin of the telson has one pair of spines, and the posterior tip two pairs of spines; the apical plate bears 2 to 4 short spinules and 2 long bristles (Hansen 1910; Casanova 1997).	en	Yolanda, Rofiza, Lheknim, Vachira, Price, W. Wayne, Hendrickx, Michel E. (2023): The lophogastrids (Crustacea: Peracarida: Lophogastrida) of Indonesia and its adjacent waters. An updated checklist. Zootaxa 5330 (3): 413-429, DOI: 10.11646/zootaxa.5330.3.5, URL: http://dx.doi.org/10.11646/zootaxa.5330.3.5
03EC8788FA0E3841FF7BA5A6FBD297B4.taxon	discussion	Remarks. This species can be distinguished from the other species of Lophogaster by its apex of the antennal scale which possesses a sharp, medium spine with 3 small serrate spines on the anterior part of the outer margin (sometimes 4 to 6). The lateral margin of the telson is armed with 3 pairs of spines, the posterior tip with 2 pairs of spines and the apical plate bears 7 short spinules and 2 long bristles (Băcescu 1985).	en	Yolanda, Rofiza, Lheknim, Vachira, Price, W. Wayne, Hendrickx, Michel E. (2023): The lophogastrids (Crustacea: Peracarida: Lophogastrida) of Indonesia and its adjacent waters. An updated checklist. Zootaxa 5330 (3): 413-429, DOI: 10.11646/zootaxa.5330.3.5, URL: http://dx.doi.org/10.11646/zootaxa.5330.3.5
03EC8788FA0D3842FF7BA3D4FEC791EC.taxon	discussion	Remarks. This species can be recognized from its antennal scale, in which the apex possesses a short sharp spine with 2 – 3 small serrate spines on the distal part of the outer margin. The lateral margin of the telson has 2 pairs of spines, the posterior tip with 2 pairs of spines and the apical plate bears 5 short spinules and 2 long bristles (Casanova 1996).	en	Yolanda, Rofiza, Lheknim, Vachira, Price, W. Wayne, Hendrickx, Michel E. (2023): The lophogastrids (Crustacea: Peracarida: Lophogastrida) of Indonesia and its adjacent waters. An updated checklist. Zootaxa 5330 (3): 413-429, DOI: 10.11646/zootaxa.5330.3.5, URL: http://dx.doi.org/10.11646/zootaxa.5330.3.5
03EC8788FA0D3842FF7BA2BCFE209354.taxon	discussion	Remarks. Lophogaster schmidti can be distinguished by its long rostrum (reaching or overreaching the tip of the antennal scale) and antennular scale with a perfectly round and smooth tip. The lateral margin of the telson has 5 pairs of spines, the distal one being the strongest. The apical plate is armed with 9 to 10 (males) or 10 to 11 (females) spines (Fage 1940, 1942).	en	Yolanda, Rofiza, Lheknim, Vachira, Price, W. Wayne, Hendrickx, Michel E. (2023): The lophogastrids (Crustacea: Peracarida: Lophogastrida) of Indonesia and its adjacent waters. An updated checklist. Zootaxa 5330 (3): 413-429, DOI: 10.11646/zootaxa.5330.3.5, URL: http://dx.doi.org/10.11646/zootaxa.5330.3.5
03EC8788FA0D3842FF7BA0ECFEC794A8.taxon	discussion	Remarks. This species is included in the Sanzoi-group of Paralophogaster, in which the lateral robust setae on the telson are not very long and never reach the apical spines. Paralophogaster boucheti can be recognized by its antennal sympod armed with a short sharp spine. The lateral margin of the telson is armed with 9 – 13 pairs of robust setae, the most posterior seta being the strongest. The apical plate is armed with 5 spinules and 4 long bristles (Casanova 1993).	en	Yolanda, Rofiza, Lheknim, Vachira, Price, W. Wayne, Hendrickx, Michel E. (2023): The lophogastrids (Crustacea: Peracarida: Lophogastrida) of Indonesia and its adjacent waters. An updated checklist. Zootaxa 5330 (3): 413-429, DOI: 10.11646/zootaxa.5330.3.5, URL: http://dx.doi.org/10.11646/zootaxa.5330.3.5
03EC8788FA0D3842FF7BA678FEDE96D8.taxon	discussion	Remarks. This species is included in the Glaber-group, in which the large lateral spines on the telson are very long and overreach the apical spines. Paralophogaster glaber can be recognized by its antennal sympod armed with a strong, stout spine. The lateral margin of the telson is armed with 9 – 10 pairs of robust setae including two large setae, where the most anterior pair is the strongest and can reach the middle part of the distal setae. The apical plate is armed with 5 short spinules and 4 long bristles (Băcescu 1981), sometimes with 6 spinules and 5 long bristles (Hansen 1910).	en	Yolanda, Rofiza, Lheknim, Vachira, Price, W. Wayne, Hendrickx, Michel E. (2023): The lophogastrids (Crustacea: Peracarida: Lophogastrida) of Indonesia and its adjacent waters. An updated checklist. Zootaxa 5330 (3): 413-429, DOI: 10.11646/zootaxa.5330.3.5, URL: http://dx.doi.org/10.11646/zootaxa.5330.3.5
03EC8788FA0D3842FF7BA5A8FA8E97BA.taxon	discussion	Remarks. Paralophogaster philippinensis is also included in the Sanzoi-group (telson large, lateral spines not very long, never reaching apical spines). This species can be recognized by its antennal sympod armed with a short, sharp spine. The lateral margin of the telson is armed with 9 – 12 pairs of robust setae with the most posterior setae being the strongest. The apical plate is armed with 5 short spinules and 4 long bristles (Băcescu 1981).	en	Yolanda, Rofiza, Lheknim, Vachira, Price, W. Wayne, Hendrickx, Michel E. (2023): The lophogastrids (Crustacea: Peracarida: Lophogastrida) of Indonesia and its adjacent waters. An updated checklist. Zootaxa 5330 (3): 413-429, DOI: 10.11646/zootaxa.5330.3.5, URL: http://dx.doi.org/10.11646/zootaxa.5330.3.5
