Trichopeltarion spinulifer (Rathbun, 1898)

Tavares, Marcos & Cleva, Régis, 2010, Trichopeltariidae (Crustacea, Decapoda, Brachyura), A New Family And Superfamily Of Eubrachyuran Crabs With Description Of One New Genus And Five New Species, Papéis Avulsos de Zoologia (São Paulo) 50 (9), pp. 97-157 : 143-145

publication ID

https://doi.org/ 10.1590/S0031-10492010000900001

persistent identifier

https://treatment.plazi.org/id/03D8DB34-FF85-FFEE-FF46-6BABFBFBFAF2

treatment provided by

Felipe

scientific name

Trichopeltarion spinulifer (Rathbun, 1898)
status

 

Trichopeltarion spinulifer (Rathbun, 1898) View in CoL

( Figures 29 View FIGURE 29 A-D)

Trachycarcinus spinulifer .Rathbun,.1898a:278,. pl. 6,. fig. 1.

Trachycarcinus spinulifer .–.Rathbun,.1930:166,.pls. 70-71.

Trichopeltarion nobile . –. Pequegnat,. 1970:185-186,. figs. 6-4,. 6-5;. Salva. &. Feldmann,. 2001:35-36,. figs. 17-18;.Tavares.&.Melo,.2005:236.(part).[non. Trichopeltarion nobile .A..Milne-Edwards,.1880].

Material examined:. Gulf. of. Mexico,. off. Delta. of. the. Mississippi,. “ Albatross ”,. stn 2376,. 29°03’15”N- 88°16’00”W,. 324. fathoms. (592 m),. 11 Feb 1885,. holotype. ♂. 27.3. (rostrum. blunt) x 33.1 mm. ( USNM. 9639);. USA,. Texas,. off. Corpus. Cristi,. 27°23’N- 95°50’W,. 320-360 fms,. 29 Jul 1969,.H.B.. Roberts. det.. [nec T. nobile . A.. Milne-Edwards],. 1 ♂. 68.2 x 80.3 mm.( USNM.128427);. Gulf. of. Mexico,. Texas,. off. Padre. Island,. “Oregon. II”,. stn 10456,. 26°50’N- 96°16’W,. 501 m,. 21 Mar 1969,. A.. Bermudez. det.. [nec T. nobile . A.. Milne-Edwards],. 1 ♂. 77.7 x 95.0 mm.( USNM.1101003);. Gulf. of. Mexico,. “Oregon”,. 1952,. F.A.. Chace. Jr .. det.. Trachycarcinus spinulifer . Rathbun. [nec T. nobile .A.. Milne-Edwards],. 1 ♂.69.4 x 78.2 mm,. 1 ♀.71.0 x 88.2 mm.( USNM. 93674);. Gulf. of. Mexico,.USA,.off. Louisiana,.“Citation”,. stn CO2,. 27°54’18”N- 90°07’32”W,. 632 m,. 13 Nov 1984,.W..&.L.. Pequegnat. det.. 13 Apr 1985.[nec T. nobile .A.. Milne-Edwards],. 10 ♂♂.13.5 x 15.0 mm. to. 64.4 x 77.4 mm,. 3 ♀♀. 12.7 x 14.6 mm. to. 40.0 x 48.5 mm.( USNM.309657);. Gulf. of. Mexico,. “Gyre”,. stn S. 35,. 29°20’45”N- 87°02’15”W,. trawl,. 645-695 m,. 12 Jun 2000,. M.. Wicksten. det.. [nec T. nobile .A.. Milne-Edwards]. 2 ♀♀.22.2 x 26.6 mm.and. 39.8 x 46.7 mm.( USNM.1022065);. Gulf. of. Mexico,. USA,. Florida,. Panama. City,. “Citation”,. stn E02A,. 28°35’01”N- 86°45’44”W,. 625 m,. 13 May 1985,. W.. Pequegnat. det.. 14 Aug 1986. [nec T. nobile . A.. Milne-Edwards]. 2. juveniles. ♀♀. 12.8 x 15.2. and. 16.7 x 20.2 mm,. 2. juveniles,. 1. carapace. ( USNM. 1000621);. Gulf. of. Mexico,. “Oregon”,. stn 319,. 29°20’N- 87°25’W,. 315 fms.(576 m),. 28 Apr 1951,. F.A.. Chace.Jr ..det.. Trachycarcinus spinulifer . Rathbun,. 1 ♂.75.0 x 90.3 mm,. 1 ♀.72.0 x 88.7 mm.(MNHN- B5414,.ex-USNM.92356) GoogleMaps .

Comparative Material

Trichopeltarion nobile . –. A.. Milne-Edwards ,. 1880:. Caribbean. Sea,. off. Saint. Lucia,. Blake,. stn 219,. 13°59’50”N- 61°03’50”W,. 15 Feb 1879,. 276.1 m,. holotype. ♂. 76.0 x 65.0 mm. ( MCZ. 3054);. Lesser. Antilles,. Guadeloupe,. West. coast. of. Basse. Terre,. Mission. ORSTOM-IRPM-SMCB,. “Polka”,. trap,. 500 m,. G.. Leblond. &. J.. Poupin. coll.,. Jan. to. May. 1993,. 4 ♂♂.69.2 x 82.5,.72.5 x 86.0,.73.0 x 85.4.&. 76.4 x 90.0 mm.( MNHN-B29897 ) GoogleMaps ;. Lesser.Antilles,. Guadeloupe,. Basse.Terre,. Vieux. Habitants,. “Polka”,. trap,. 300-600 m,.D.. Lamy. coll.,. 1 ♂.76.5 x 89.0 mm,. 1 ♀. 66.5 x 79.5 mm. (both. specimens. with. central. rostral.tooth.blunted), 1 ♂.63.3 x 76.4 mm.(dissected). ( MNHN-B29898 ) ;. Caribbean.Sea,. Colombia,.Santa. Marta,. 11°27’04”N- 73°42’12”W,.A.. Bermudez. det.,. 1 ♀.83.5 x 93.3 mm.( USNM.290255) GoogleMaps .

Trichopeltarion pezzutoi .–. Tavares.&. Melo ,.2005.. Brazil:. Bahia,. REVIZEE,. RV. “ Thalassa ”,. stn D-0538,. 13°40’741”S,. 38°71’601”W,. 450-500 m,. mature. ♀. paratype. cl 81.2 mm,. cw. 85.4 mm. ( MNRJ. 14086);.São.Paulo,.FV.“Belem”,.stn 29,. 24°56’21”S,. 44°43’11”W,. 333 m,.E.. Lerchiari. coll.,. 23 Jul 2002,. juvenile. ♀. paratype.cl 46 mm,.cw. 48 mm.( MZUSP. 16715);. Cabo. de. Santa.Marta,. Santa.Catarina,. Fishing. boat,. 400-500 m,. C.. Magenta. leg.. Oct 2004,. mature. ♂. holotype.cl 69 mm,.cw. 71 mm.( MZUSP. 16714) GoogleMaps .

Type locality:.Gulf.of. Mexico,.off.Delta.of.the.Mississipi,.592.meters.

Remarks:.Rathbun.(1898a).described. Trachycarcinus spinulifer . Rathbun,. 1898,. based. on. one. immature. male. (cl 28 mm). and. a. broken. carapace,. both. obtained.off.the.delta.of.the. Mississippi.River.between. 592. and. 635. meters. depth.. Pequegnat. (1970:184). argued. that. the. morphological. differences. between. T. spinulifer .and. T. nobile .(Rathbun,.1898a:278-279;. 1930:166-167). are. referable. to. the. age. and. size. of. the.specimens.and,.accordingly,.placed. T. spinulifer . in. the. synonymy. of. T. nobile . . Salva. &. Feldmann. (2001:34). followed. Pequegnat. (1970). in. considering. T. spinulifer .a.more.recent.synonym.of. T. nobile . . Upon. examination. of. the. holotype. of. T. spinulifer . alone,.Tavares.&.Melo.(2005:240).subscribed.to.the. synonymy.between.the.two.species..However,.for.the. present. study. several. additional. specimens. of. both. T. spinulifer . and. T. nobile . have. been. obtained,. including. the. adult. male. holotype. of. T. nobile . .The. study. of. adult. males. and. females. prompted. us. to. remove. T. spinulifer . from. the. synonymy. of. the. later. species.. Differences. between. T. spinulifer . and. T. nobile .are.as.follows:.(i) P5.merus-carpus.articulation. almost. reaching. the. proximal. end. of. the. second. epibranchial. tooth. (whilst. in. T. nobile . the. P5. merus-carpus.articulation.lies.well.before.the.second. epibranchial.tooth,. figure 30A);. (ii) P4.the.merus-carpus.articulation.reaching.well.beyond.the.second. epibranchial.tooth.(whilst.in. T. nobile .the.merus-carpus.articulation.do.not.reach.the.second.epibranchial.tooth);.(iii) the.carapace.is.entirely.and.regularly. covered.with.sparse.fine.hairs.of.two.different.sizes,. easily.recognizable.in.profile.view.(while.in. T. nobile . the.carapace.is.covered.by.a.thick.coat.of.velvet.(figure 30A),. see. also. A.. Milne-Edwards,. 1880:20-21;. Rathbun,. 1930;. Salva. &. Feldmann,. 2001:34;. Tavares. &. Melo,. 2005:240);. (iv) carapace. distinctly. and.regularly.humped.over.its.entire.dorsal.surface,. humps. from. the. meta-gastric,. cardiac,. branchial,. and. intestinal. regions. of. the. carapace. crested. with. granules.or.spiny.tubercles.(whereas.in. T. nobile .the. carapace.is.ornamented.with.small.spiny.tubercles.or. granules.near.the.margins.while.its.central.parts.are. smooth).

T. spinulifer .can.be.easily.split.from.its.Southwestern.Atlantic.congener,. Trichopeltarion pezzutoi ,. by. the. ornamentation. of. the. dorsal. surface. of. the. carapace. distinctly. and. regularly. humped. over. its. entire. surface. (regularly. covered. with. rounded. tubercles. in. T. pezzutoi ). and. the. posterior. region. of. the.carapace.sparsely.tuberculated.(heavily.tuberculated.in. T. pezzutoi )..Additionally,. T. pezzutoi .(figure. 30B).shares.with. T. nobile .the.P5.merus-carpus.articulation.lying.well.before.the.second.epibranchial. tooth. (merus-carpus. articulation. almost. reaching. the. epibranchial. tooth. in. T. spinulifer ). and. the. P4. merus-carpus. articulation. not. reaching. the. second. epibranchial.tooth.(merus-carpus.articulation.reaching. well. beyond. the. second. epibranchial. tooth. in. T. spinulifer ).

Distribution: T. spinulifer . is. known. so. far. from. the. Gulf.of. Mexico,.between.501.and.695.meters.depth.. Three. additional.species. are.known.from.the.Atlantic.Ocean.to.date,. T. nobile .(Caribbean.Sea,.between. 276.and.600.meters.depth),. T. intesi .(Crosnier,.1981),. from. West. Africa. (Ivory. Coast,. 600. meters. depth),. and. T. pezzutoi .from.the.Southwestern.Brazilian.coast. between.333.and.500.meters.depth.

USNM

Smithsonian Institution, National Museum of Natural History

MCZ

Museum of Comparative Zoology

MNRJ

Museu Nacional/Universidade Federal de Rio de Janeiro

MZUSP

Museu de Zoologia da Universidade de Sao Paulo

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