Halecium beani (Johnston, 1838)

Picture: Fig. 1

Picture: Fig. 2

Picture: Fig. 2

DESCRIPTION

Colonies erect, pinnate or shrubby (Fig. 1). Stems and branches polysiphonic (Fig. 2), thining out to end in monosiphonic branchlets. Internodes equal. Hydrotheca nearly sessile, on very short pedicel, alternate and angled outwards below nodes. Rim even, often with several renovations. Gonotheca on short pedicels; male in form of elongate sac, female club-shaped with opening at side, on distinct neck with two protruding polyps (Fig. 3).

DISTRIBUTION IN SVALBARD

Heleysundet, Hornsund

WORLD DISTRIBUTION

Northern Canada, North Sea, Greenland, Iceland, Barents Sea, White Sea, Kara Sea, Laptev Sea, East Siberian Sea, Chukchi Sea, Bering Sea, Alaska, Mediterranean Sea, around the British Isles

DEPTH

10-13 m

SUBSTRATE

no data

REPRODUCTION

Fixed gonophores. Gonothecae not seen in the Svalbard collection.