Trichopeltarion timorense (Števčić, 1993), Tavares & Cleva & Contents, 2010

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 : 145-147

Trichopeltarion timorense (Števčić, 1993)

comb. nov.

( Figures 10 D-F; 31A-D)

Krunopeltarion timorense . Števčić,. 1993:1097-1102,. figs. 1,.2.

Krunopeltarion timorense .–.Davie,.2002:121.

Trichopeltarion timorense .–.Ng. et al.,.2008:52.[list].

Material examined:. Timor. Sea,. Endeavor. Pearl,. 09°46’S- 130°14’E,. trawl,. 270-300 m,. holotype. ♀. 49.0 x 54.0 mm;. Indonesia,. KARUBAR,. Kai. and. Tanimbar. Islands. area ,. no. station. number,. 1 ♂. 48.5 x 54.5 mm,. 2 ♀♀. 49.0 x 55.5. and. 49.0 x 53.0 mm.( MNHN-B.28795) .

Description of the male:. Carapace. subcircular,. distinctly.arched.transversally.and.longitudinally,.heavily. ornamented.with.large.clusters.of.rounded.tubercles. crested.with.rounded,.large.granules..Front. cut.into. three.prominent.teeth..Central.rostral.tooth.forward. directed,.distinctly.wider.than.lateral.teeth,.with.very. few,.sparse.barbs.distally;.lateral.teeth.about.same.size. as.central.tooth,.slightly.directed.outwards,.with.very. few,.sparse.barbs.distally..Orbits.large,.directed.laterally;.ocular.peduncles.slender,.freely.movable,.fully.retractable.into.orbital.cavity;.cornea.small,.scantly.pigmented..Orbital.teeth.strong,.armed.with.few,.acute. barbs..Innerorbital.tooth.swollen,.ending.in.sharp.tip,. separated.from.lateral.rostral.tooth.by.deep,.U-shaped. gap;.innerorbital.and.second.supraorbital.teeth.separated. from. each. other. by.V-shaped,.deep. gap;.exorbital.tooth.distinctly.shorter.than.innerorbital.tooth,. separated.from.second.supraorbital.by.V-shaped,.deep. gap..Hepatic,.first.and.second.epibranchial,.and.first. and. second. metabranchial. teeth. strong,. armed. with. barbs.. Hepatic. tooth. lobe-like,. much. stronger. than. exorbital. tooth;. first. epibranchial. lobe-like,. stronger. than.hepatic.tooth;.second.epibranchial.tooth.strongest,.ending.in.sharp.tip;.second.metabranchial.tooth.

stronger.than.first..Carapace.posterior.margin.slightly. concave.axially,.bordered.with.rows.of.rounded.tubercles.of.different.sizes..Carapace.grooves.well.distinct,. wide,.smooth.inside;.branchiocardiac.groove.deepest,. sinuous..Gastric,.cardiac,.and.intestinal.regions.swollen,.with.large.cluster.of.rounded.tubercles.

Thoracic . sternum. with. short. tomentum. and. sparse,.rounded.granules..Pair.of.tubercles.of.abdominal.locking.system.placed.near.sternal.suture.5/6.

Right. cheliped. extremely. developed,. massive,. smooth,.polished..Dactylus.longer.than.fixed.finger,. smooth,.straight,.curving.downward.terminally;.cutting.edge.with.very.low,.molariform.teeth..Fixed.finger. smooth;.cutting.edge.with.very.low,.molariform.teeth.. Palm.extremely.massive,.smooth,.polished,.except.for. few. minute. granules. on. upper. surface.. Carp. upper. surface. with. rounded,. well. individualized. granules;. inner. anterolateral. angle. with. strong,. blunt,. tooth.. Merus. smooth,. polished..Small.cheliped.densely. setose;. dactylus. delicate,. regularly. and. gently. curved. downward;. densely. setose. dorsally;. sulcated. along. lateral.and.mesial.sides,.sulci.shallow,.densely.setose;. cutting.edge. with. almost.imperceptible,. molariform. teeth.proximally..Fixed.finger.almost.straight,.curved. upwards. distally;. sulcated. along. lateral. and. mesial. sides,.sulci.shallow,.densely.setose;.cutting.edge.with. almost. imperceptible,. molariform. teeth. proximally.. Carpus. dorsal. surface. with. sparse,. strong,. acute. tubercles;. inner. anterolateral. angle. with. strong,. acute. tooth.. P2-5. densely. setose;. dactili. markedly. longer. than. propodi;. P5. merus-carp. articulation. far. from. reaching.second.epibranchial.tooth.

Male.abdomen.of.six.free.segments.and.telson;. telson.and.segments.with.short.tomentum;.segments. 1-2. with. few,. sparse. tubercles,. remaining. segments. smooth.. Abdominal. segment. 6. only. slightly. longer. than.5.axially,.nearly.squarish,.its.anterolateral.angles. slightly.protruded,.swollen;. complementary. parts. of. abdominal.locking.system.present.and.functional..G2. styliform,.short,.not.reaching.to.thoracic.sterna.suture. 5/6.

Type locality:.Timor.Sea,. 09°46’S- 130°14’E,.between. 270-300.meters.depth.

Remarks: Trichopeltarion timorense . resembles. both. Trichopeltarion wardi .Dell,.1968,.and. Trichopeltarion fantasticum . Richardson. &. Dell,. 1964.. It. promptly. differs. from. T. wardi . in. having. both. first. and. second.metabrachial.teeth.well.developed.and.spiniform. (both.teeth.absent.in. T. wardi );.the.innerorbital,.second. supraorbital,. and. the. exorbital. teeth. closer. to. one. another,. separated. by. only. a. V-shaped,. narrow. notch.(supraorbital.teeth. wide. apart.from.each.oth- er).. Trichopeltarion timorense .can.be.easily.split.from. T. fantasticum .by.having.the.dorsal.surface.of.the.carapace.heavily.ornamented,.with.large.clusters.of.coalescent,.rounded.tubercles,.crested.with.large,.rounded. granules. (carapace. with. widely. spaced,. rounded. tubercles.in. T. fantasticum ).

Distribution:. Known. so. far. only. from. Indonesia. (Timor.Sea.and.Tanimbar.Islands),.between.270.and. 300.meters.depth.

Figures

FIGURE 10:.Podocatactes hamifer.Ortmann,.1893,.male.23.2 x 23.8 mm.(MNHN-B.28806)..A-B, first.gonopod..C, second.gonopod.. D-F, Trichopeltarion timorense. (Števčić,. 1993). comb. nov.,. male. 49.0 x 54.5 mm. (MNHN-B.28795).. D-E, first. gonopod.. F, second. gonopod.