Lipotrapeza litusi O’Loughlin, 2012

O’Loughlin, P. Mark, Barmos, Shari & VandenSpiegel, Didier, 2012, The phyllophorid sea cucumbers of southern Australia (Echinodermata: Holothuroidea: Dendrochirotida: Phyllophoridae), Memoirs of Museum Victoria 69, pp. 269-308 : 275

publication ID

https://doi.org/ 10.24199/j.mmv.2012.69.05

DOI

https://doi.org/10.5281/zenodo.12212444

persistent identifier

https://treatment.plazi.org/id/7E4A044D-1912-FFAB-9A9D-FC8297AC8967

treatment provided by

Felipe

scientific name

Lipotrapeza litusi O’Loughlin
status

sp. nov.

Lipotrapeza litusi O’Loughlin View in CoL sp. nov.

Figures 1c View Figure 1 , 3 View Figure 3

Material examined. Holotype. Western Australia, Cottesloe Beach , 32°00'S 115°45'E, beach washed, L. M. Marsh, Aug 1990, WAM Z13475 About WAM . GoogleMaps

Diagnosis. Up to 70 mm long, 22 mm diameter (preserved, tentacles withdrawn); form cylindrical, upturned oral and anal rounded tapers; 20 tentacles, 5 outer pairs large, 5 inner pairs small; tube feet all around body, scattered dorsally, close ventrally, across introvert, diameters up to 0.7 mm; calcareous ring stout, irregular, with some short posterior composite projections arising jointly from radial and inter-radial plates, not tubular, lacking thin radial composite posterior elongations; short stone canal, madreporite close to vascular ring; single polian vesicles; thin branched gonad tubules arise in series along gonoduct on each side of dorsal mesentery.

Mid-body wall lacking ossicles; tube feet with endplates, support rods, abundant rosettes, few small plates; endplate diameters up to 536 µ m; support rods stout, distally enlarged and perforate, up to 144 µ m long; rosettes oval, up to 48 µ m long, intergrade with small plates; small plates irregular, perforate, denticulate margin, up to 104 µ m long; tentacles with rods and rosettes, rods stout, distally enlarged and perforate, up to 200 µ m long, abundant rosettes up to 64 µ m long.

Colour (preserved). Body off-white, body and tube feet with some residual red; tentacle trunks white, branches pale brown.

Distribution. Southwest Australia, Cottesloe beach, off-shore sediments.

Etymology. Named from the Latin litus (beach) with reference to the beach-washed source of the type specimen.

Remarks. Lipotrapeza litusi O’Loughlin sp. nov. is distinguished from other Lipotrapeza species in the key (above). The single specimen that this species is based on was found on a beach and the species presumably lives in off-shore sediments.

WAM

Western Australian Museum

Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF