Thysanoessa inermis (Kryer, 1846)
Differs from other Thysanoessa species by the presence of a dorsal spine on the last segment of the abdomen.
The last segment of the abdomen carries a dorsal spine. The front edge of the carapace is transformed into an elongate rostrum. Uropods are shorter than the telson.
Length up to 30 mm.
Ecology and Distribution
Amphiboreal species; found in the Barents Sea, White Sea, Kara Sea, Bering Sea, Sea of Okhotsk.
Important food source for herring.