Tanapseudes gutui Hansknecht et al., 2002

DRUMM, DAVID T. & HEARD, RICHARD W., 2011, Systematic revision of the family Kalliapseudidae (Crustacea: Tanaidacea), Zootaxa 3142 (1), pp. 1-172 : 152-155

publication ID	https://doi.org/ 10.11646/zootaxa.3142.1.1
persistent identifier	https://treatment.plazi.org/id/AF5F87C3-DEFC-FF6D-B19F-C180FBD79253
treatment provided by	Felipe
scientific name	Tanapseudes gutui Hansknecht et al., 2002
status

Treatment

Tanapseudes gutui Hansknecht et al., 2002 View in CoL

( Figs 102–104 View FIGURE 102 View FIGURE 103 View FIGURE 104 )

Tanapseudes gutui Hansknecht et al., 2002: 67 View in CoL , Figs. 2–3 View FIGURE 2 . Guţu and Angsupanich, 2005: 51, 52, 55.

Type material. Holotype: adult male ( USNM 1001787 About USNM ) . Paratypes: 2 males, 1 ovigerous female ( USNM 1001788 About USNM ) ; 1 male, 1 ovigerous female ( GCRL 2038 View Materials ) ; 1 male ( MHN Grigore Antipa No. 250.181); 2 ovigerous females ( MHN Grigore Antipa No. 250.180) ; 1 male ( NHM 2001.6903 ) ; 1 female ( NHM 2001.6904 ) .

Material examined. Paratypes: 1 ovigerous female, 1 adult male, GCRL 2038, CH2MHill Consultants, Carolina WWTP, Puerto Rico, San Juan Estuary, 18°27.797N, 65°53.439W, St. Cl –2, 34m, sandy clay, Oct. 30, 1999. Non –types GoogleMaps : 1 adult male, EPA Coastal 2000, 6701, St. PR 44, Puerto Rico, id. Tom Hansknecht ; 3 males, 1 female and 2 juveniles, MAFLA station 2426, 28°57´N 85°23´W, 82 m, fine sand, coll. 1977.

Diagnosis. Pleonites with only few (three at most) lateral plumose setae. Pleotelson with very pronounced rounded posterior protuberance. Male pereopod 1 with dorsodistal spiniform seta on propodus reduced or lacking. Male cheliped carpus with ventrodistal rounded protuberance. Pereopods 2–5 with ventral margins of merus and carpus heavily setose. Uropod basal article lacking inner distal spiniform projection.

Type locality. San Juan , Puerto Rico, 18°27.797'N 65°53.439'W, 3–34 m depth ( Fig. 100 View FIGURE 100 ) GoogleMaps .

Geographic distribution. Northwestern Atlantic, Caribbean Sea ( Puerto Rico, Tobago) and eastern Gulf of Mexico, 3–82 m depth (Fig. 1, number 44; Fig. 100 View FIGURE 100 ).

Remarks. Hansknecht et al. (2002) described and illustrated the uropod exopodite of T. gutui as being biarticulate. However, examination of type material revealed the presence of three articles (1 small round basal article, Fig. 103F View FIGURE 103 ). They also mention that the adult male cheliped has a tooth midway on the cutting edge of the dactylus; we did not see this tooth on the paratype male we examined ( Figs. 102F, G View FIGURE 102 ).

Tanapseudes gutui can be distinguished from the other congeners by having the male pereopod 1 propodus with a reduced dorsodistal spiniform seta ( Fig. 103A View FIGURE 103 ) and the male cheliped with a carpal process ( Fig. 102F View FIGURE 102 ). Guţu and Angsupanich (2005) describe this pattern in specimens collected from the Andaman Sea in Thailand to which they attribute to T. ormuzana . Their specimens are likely to represent a new species because these characteristics were not evident in the material examined by me, Hansknecht et al. (2002) or in the original description ( Băcescu, 1978). The location of their material is also distant from the type locality. The posterior protuberance of the pleotelson of T. gutui ( Figs. 102A, B View FIGURE 102 ) also seems to be more pronounced and pereopods 2–5 ( Figs. 103B–D View FIGURE 103 ) more setose than in the other species.

The range of T. gutui was expanded northward into the eastern Gulf of Mexico ( Drumm and Heard, 2010) based on examination of new material.

Tanapseudes ormuzana B ă cescu, 1978

( Figs 106 View FIGURE 106 –109)

Tanapseudes ormuzana Băcescu, 1978: 209–212 View in CoL , Fig. 5 View FIGURE 5 . Bamber, 2000: 50–51. Hansknecht et al., 2002: 67–70, 74, Fig. 1. Guţu and Angsupanich, 2005: 51–55, Figs. 5–6 View FIGURE 5 View FIGURE 6 .

Tanapseudes sinensis Bamber, 2000: 45 View in CoL , Figs. 4–6. Guţu, 2001: 68, 69. Hansknecht et al., 2002: 67–70.

Material examined. Non– types: near type locality, Persian Gulf, 26°26'N, 52°17'E, 70 m, July, 2005, coll. and det.: R. Bamber.

Diagnosis. Pleonites with several lateral plumose setae. Pleotelson with rounded posterior protuberance. Male pereopod 1 with long dorsodistal spiniform seta on propodus. Male cheliped carpus lacking ventrodistal rounded protuberance. Pereopods 2–5 with ventral margins of merus and carpus not heavily setose. Uropod basal article lacking inner distal spiniform projection.

Type locality. Ormuz Straits , Indian Ocean, 26°31'7"N 56°42'5"E, 10–67 m depth ( Fig. 100 View FIGURE 100 ) GoogleMaps .

Geographic distribution. Indian Ocean (Red Sea, Persian Gulf), 10–70 m depth (Fig. 1, number 45; Fig. 100 View FIGURE 100 ).

Remarks. Tanapseudes ormuzana can be distinguished from the other two congeners by a combination of characters including: 1) male cheliped lacking carpal process ( Fig. 108A View FIGURE 108 ), 2) male pereopod 1 propodus with a long dorsodistal spiniform seta ( Fig. 108B View FIGURE 108 ) and 3) uropod basal article lacking an inner distal spiniform projection ( Fig. 107D View FIGURE 107 ). As mentioned above in the “remarks” section for T. gutui, Guţu and Angsupanich (2005) partially redescribed T. ormuzana from material collected in the Andaman Sea, which is geographically fairly distant from the type locality. We believe it might represent a new species because their description did not match the original description ( Băcescu, 1978) in several key characteristics such as the male cheliped and pereopod 1. It seems to be more similar to T. gutui .

Băcescu (1978) described the male cheliped as having a large notch in the carpus, but this is actually the space between the merus and carpus (mentioned in Hansknecht et al., 2002). Tanapseudes ormuzana was apparently discovered in the Red Sea ( Makkaveeva, 1971) but material is unavailable for examination.