Development, Fecundity and Brooding Behaviour of the Amphipod,Marinogammarus Obtusatus

Abstract

Marinogammarus obtusatusDahl, an intertidal amphipod, was first described by Dahl (1938). Prior to this date it appears that this species was often confused with and identified asM. marinus. In later years,M. obtusatushas been shown to be common around the coast of Britain (Sexton & Spooner, 1940), and in a preliminary survey of Cullercoats Bay, Northumberland, we have found that this species is by far the commonest amphipod present.