WHEN mature, a female Gammarus has long oostegites fringed with setae which lock together to form a brood pouch where the fertilized eggs are incubated. The development of the setae coincides with ...

The nuclear ssu RDNA gene of several isopods (Crustacea, Peracarida) was sequenced to study its phylogenetic information content. Several areas had to be cut out of the alignment of 31 isopod ...