Paralomis multispina ( Benedict, 1894 )

Hall, Sally & Thatje, Sven, 2010, King crabs up-close: ontogenetic changes in ornamentation in the family Lithodidae (Crustacea, Decapoda, Anomura), with a focus on the genus Paralomis, Zoosystema 32 (3), pp. 495-524 : 504

publication ID	https://doi.org/10.5252/z2010n3a10
DOI	https://doi.org/10.5281/zenodo.5177980
persistent identifier	https://treatment.plazi.org/id/BE009266-390D-FFCF-47E3-84CF0B00FA84
treatment provided by	Felipe (2021-08-06 10:26:43, last updated 2024-01-19 20:52:37)
scientific name	Paralomis multispina ( Benedict, 1894 )
status

Treatment

Paralomis multispina ( Benedict, 1894) View in CoL ( Fig. 7 View FIG )

Leptolithodes multispina Benedict, 1894: 484 . — Rathbun 1904: 165.

Paralomis multispina View in CoL – Schmitt 1921: 159, pl. 23; pl. 30, figs 7, 8. — Makarov 1938: 257, fig. 102. — Sakai 1971: pl. 6, fig. 2; pl. 14, figs 1, 2.

DISTRIBUTION. — North Pacific, particularly around Japan, approximately 500-1100 m.

MATERIAL EXAMINED. — 7 ♀♀ (CL 14-93 mm); 9 šš (CL 7-105 mm).

SPECIMENS FIGURED. — Sea Lion rocks, WA, 1253 m, 1 ♀ CL 17 mm ( USNM- 18591). — San Diego, CA, 1503 m, 1 ♀ CL 68 mm ( USNM- 18589).

REMARKS

In P. multispina , the spines in the larger size classes (CL> 50 mm) are stout, sharp-tipped, and conical, flattened at an oblique (posterior facing) angle, and with a circumference of short setae around that face ( Fig. 7E View FIG ). Juveniles (CL 7-30 mm) of P. multispina have short, blunt, pedunculated tubercles, bearing a halo of short setae ( Fig. 7B, C View FIG ). In specimens of around CL 30 mm, there is evidence for the tubercles becoming longer and developing an acute tip, as in larger adults. In all specimens, one spine in the mid-gastric region is larger than the other spines or tubercles, and which has no setae, nor does it have a flattened region posteriorly: this spine appears to be particularly large in relation to the lower tubercles on small specimens.

References

BENEDICT J. E. 1894. - Scientific results of explorations by the U. S. Fish Commission steamer Albatross. No. XXXI. Descriptions of new genera and species of crabs of the family Lithodidae, with notes on the young of Lithodes camtschaticus and Lithodes brevipes. Proceedings of the United States National Museum 17: 479 - 488.

MAKAROV V. V. 1938. - [Crustacea], in [Fauna of U. S. S. R.] vol. 10, no. 3: 1 - 283 (in Russian, English translation published in 1962 by Israel Program for Scientific Translations, Jerusalem).

RATHBUN M. J. 1904. - Decapod crustaceans of the northwest coast of North America. Harriman Alaska Expedition Series 10, 210 p.

SAKAI T. 1971. - Illustrations of 15 species of crabs of the family Lithodidae, two of which are new to science. Researches on Crustacea 4 - 5: 1 - 491.

Figures

FIG. 7. — Paralomis multispina Benedict, 1895: A-C, ♀ CL 17 mm (USNM-18591), Sea Lion rocks, WA, 1253 m; D, E, ♀ CL 68 mm (USNM-18589);A, carapace,dorsal view;B, mid-branchial spines,dorsal view;C, typical mid-branchial spine,lateral view;D, carapace, dorsal view; E, typical mid-branchial spine, right lateral view. Scale bars: A, 5 mm; B-E, 1 mm.