Leptognathioides

Bird, Graham J, 2007, Family incertae cedis *, Zootaxa 1599, pp. 121-149 : 146

publication ID	https://doi.org/10.5281/zenodo.178710
DOI	https://doi.org/10.5281/zenodo.4668952
persistent identifier	https://treatment.plazi.org/id/03F187A3-FFF5-0375-FF57-FAAA11F7F8F4
treatment provided by	Plazi (2016-04-06 01:29:56, last updated 2023-10-25 16:59:16)
scientific name	Leptognathioides
status

Treatment

Leptognathioides View in CoL sp.KK#1

Figure 19 View FIGURE 19

Material examined. 1 non-ovigerous female (1.74 mm), station XR12, 41°37.67’– 41°37.08’N, 146°54.19’– 146°52.72’E. 5473–5484 metres, 22–23 September 2001.

Remarks. Only a single individual was recorded. The body shape ( Fig. 19 View FIGURE 19 A), cheliped ( Fig. 19 View FIGURE 19 B) and uropod ( Fig. 19 View FIGURE 19 D) structure strongly suggest that it belongs in the genus Leptognathioides Bird & Holdich, 1984 : the robust cheliped is characterized by a short posterior basal process beneath the attachment to the lateral sclerite and a large broad tooth on incisive margin fixed-finger; the uropod exopod is two-articled rather than one-articled in L. polita ( Hansen, 1913) , L. rectus Kudinova-Pasternak, 1993 , L. potens Bird & Holdich, 1984 and L. vicina ( Hansen, 1913) but has a very short article 2, that may represent a more plesiomorphic state from an earlier evolutionary stage.

Distribution. Kurile-Kamchatka Trench, 5473–5484 metres.

References

Bird G. J. & Holdich, D. M. (1984) New deep - sea leptognathiid tanaids (Crustacea, Tanaidacea) from the North-east Atlantic. Zoologica Scripta, 13 (4), 285 - 315.

Hansen, H. J. (1913) Crustacea Malacostraca, II, IV, The Order Tanaidacea. Danish Ingolf Expedition, 3 (3), 1 - 145.

Kudinova-Pasternak, R. K. (1993) Tanaidacea (Crustacea, Malacostraca) collected in the 43 cruise of the R / V Dimitri Mendeleev in the South-western Atlantic and the Weddell Sea. Trudy Instituta Okeanologii, 127, 134 - 145.