Pallenopsis (Bathypallenopsis) calcanea Stephensen, 1933

Bamber, Roger N., 2002, Bathypelagic pycnogonids (Arthropoda, Pycnogonida) from the Discovery deep-sea cruises, Journal of Natural History 36 (6), pp. 715-727 : 718

Pallenopsis (Bathypallenopsis) calcanea Stephensen, 1933

Bamber and Thurston, 1995: 139; ®gure 7A.

Material. Four specimens, sample 7709#17; one specimen, sample 7709#22; two specimens, sample 7709#23; three specimens, sample 7709#24; two specimens, sample 7709#25; three specimens (two juveniles), sample 7709#35; one specimen, sample 7709#44; one specimen, sample 7711#1; three specimens, sample 7711#8; one specimen, sample 7711#36; one specimen, sample 7716#1; one specimen, sample 10105#1; one specimen, sample 52101. Depth range (trawl depths) of this material, 200± 1500 m.

This cosmopolitan species is the second commonest bathypelagic species recorded in the present material (after Pallenopsis tritonis ). It was also noted by Hedgpeth (1962, with review of world-wide records to that date), by Mauchline (1984) in the Rockall Trough and by Nakamura and Child (1991 with literature) oOE Japan. Stephensen’s types from oOE Greenland were also bathypelagic ( Stephensen, 1933). Although genital pores were not evident, and no gravid specimens were found, the gender of all of this material would appear to be female, as none were found with cement gland tubes.

The present material is from the north-east Atlantic Basin, ranging from south of Iceland to the Rockall Trough, the Porcupine Bank and Sea Bight.