Some Amphipoda, Isopoda and Tanaidacea from Cook Strait
Family Lysianassidae
Family Lysianassidae
Eurythenes gryllus (Licht.), 1822.
Eurythenes gryllus, Stebbing, 1906: 73.
Chilton, 1911: 563–564.
Barnard, 1932: 58.
Stephensen, 1933: 12–20, figs. 4–7
Material Examined: Station FOS (VUZ. 25), 1 female with young in brood-pouch, 24 mm: Station FOOR (VUZ. 58), 1 male, 53 mm: "off Island Bay" (exact locality unknown). 19/9/56. coll. by line fisherman, 2 females, 14–15 mm.
Distribution: Northern and Southern Atlantic: Northern Pacific: Cook Strait, N.Z.; Sunday Island, Kermadec Islands (Chilton. 1911).
Discussion: This large species has not previously been known from New Zealand waters and this is probably the shallowest depth from which it has been recorded free-living. Stephensen quotes depths from 1,000–5,000 fathoms. Where it has been taken previously in shallow water, it has always been from fish stomach contents.
The female of this species was formerly known as Katius obesus Chevreux.