Trichopeltariidae (Crustacea, Decapoda, Brachyura), A New Family And Superfamily Of Eubrachyuran Crabs With Description Of One New Genus And Five New Species
Author
Tavares, Marcos
Author
Cleva, Régis
text
Papéis Avulsos de Zoologia
2010
São Paulo
2010-12-31
50
9
97
157
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492010000900001&lng=en&nrm=iso&tlng=en
journal article
10.1590/S0031-10492010000900001
1807-0205
13286868
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.
FIGURE 29:
.
Trichopeltarion spinulifer
.(Rathbun,.1898)..
A-B,
Holotype.male.27.3 x 33.1 mm.(USNM.9639)..
C-D,
Male.75.0 x 90.3 mm. (MNHN-B5414)..
A, C,
General.dorsal.view..
B, D,
Carapace.in.dorsal.view.
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.