Larsmentia, Bamber, Roger N. & Marshall, David J., 2015

Bamber, Roger N. & Marshall, David J., 2015, Tanaidaceans from Brunei, V. The Leptocheliidae (Crustacea: Peracarida: Tanaidacea), with four new species, Zootaxa 3948 (3), pp. 342-360 : 359

publication ID

https://doi.org/ 10.11646/zootaxa.3948.3.2

publication LSID

lsid:zoobank.org:pub:69861D43-2614-4FD7-BDDF-03FD430BFC98

DOI

https://doi.org/10.5281/zenodo.6119717

persistent identifier

https://treatment.plazi.org/id/A56B0948-FFA8-FFD7-D5F9-FBB01FBE1DEA

treatment provided by

Plazi

scientific name

Larsmentia
status

gen. nov.

Genus Larsmentia View in CoL gen. nov.

Leptochelia elongata Larsen & Rayment, 2002: 19 View in CoL –22, figs 2–4.

Diagnosis: Female: Catenariin with eyes present, pigmented. Antennule proximal flagellar segment not fused to distal peduncle article. Antenna articulated distal spine (?) on peduncular article 3. Maxilliped endite spines blunt. Cheliped carpus with naked dorsal margin. P4–6 claw. Uropod exopod two-segmented.

Type species. Leptochelia elongata Larsen & Rayment, 2002 .

Etymology. A concatenation from the names of the original authors of the species, thus Lars - (Larsen) and - ment - (Rayment) with a euphonious ending.

Gender. Feminine.

Remarks. When describing Catenarius, Bamber (2008) discussed the possible affinity of Leptochelia elongata Larsen & Rayment, 2002 , again distinguished from Catenarius by the maxilliped endite spination. It is now apparent from Ektraleptochelia and Brunarus that the maxilliped spination is not a phylogenetically characterizing feature of the Catenariinae . With an adult female antennule identical with that of Catenarius , the removal of L. elongata to the Catenariinae is now appropriate.

Larsmentia elongata View in CoL comb. nov. is moved to the new genus, as it is distinguished from Ektraleptochelia View in CoL in not having the antennular flagellar segments fused and having a two-segmented uropod exopod; it is distinct from Catenarius View in CoL in having blunt maxillipedal endite spines, in having the dactylus and unguis of the posterior pereopods fused into a claw, and an apparently naked dorsal margin to the cheliped carpus. The setation of the pereopod ischia appears somewhat confused in the original description. The spination of the third segment of antennular peduncle of this species is unclear: Larsen & Rayment (2002) describe it as having a “seta”, which in their terminology simply means that it is articulated, but they show nothing on their figure of the antenna ( Larsen & Rayment 2002, fig. 3B).

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Tanaidacea

Family

Leptocheliidae

Loc

Larsmentia

Bamber, Roger N. & Marshall, David J. 2015
2015
Loc

Leptochelia elongata

Larsen 2002: 19
2002
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