dcsimg

Description

provided by NMNH Antarctic Invertebrates

“Pallenopsis Hodgsoni nom nov. (Figs. 3a, 4d, 5d)

P. pilosa Hodgson, 1907, p. 15; pl. 2, fig. 2

P. pilosa Bouvier, 1911, p. 1139; 1913, p. 107, figs. 60 and 61.

P. pilosa Calman, 1915, p.42

P. pilosa Gordon, 1932, p. 87

Nec Phoxichilidium pilosa Hoek, 1881, p. 90, pl. 13, figs. 10-13.

Material. – Station 10, 29 January, 1914, 65°5’S, 96°0’E., 340 fathoms: 1 female, 1 male.

Remarks. – Calman (1915, p. 43) has pointed out that specimens from the Ross Sea region differ in certain respects from the syntypes of Pallenopsis pilosa (Hoek).

In addition to the differences mentioned by Calman, the second coxae of the legs are much more slender proximally in the syntypes (female) of P. pilosa than in females from either the eastern or western side of the Antarctic (cf. fig. 4c and d). The hairs on the legs differ in their microscopic structure (fig. 3a and d; see also p. 16); in “P. pilosa” determined by Hodgson the hairs are also more numerous, and those on the coxae are much shorter than in the syntypes of P. pilosa (fig. 4c and d).

The syntypes of P. pilosa are recorded from deep water (1,600 and 1,950 fathoms) and from more northern latitudes (46°16’ and 53°55’S. respectively). The more southern form has been dredged in 340 fathoms or less. I have though it advisable, in view of the differences referred to above and on p. 16, to regard the latter as a distinct species which I propose to name P. hodgsoni.” (Gordon 1938, p. 16-17)

Habitat

provided by World Register of Marine Species
slope

Reference

van der Land, J. (ed). (2008). UNESCO-IOC Register of Marine Organisms (URMO).

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Jacob van der Land [email]