Diastylis Rathkii.

Diastylis echinata.

Cuma scorpioides.

Cuma costata. Burrows in sand.

Cuma lucifera. New to Britain. Found at Banff by T. E. in July 1865.

Halia trispinosa.

Venilia gracilis.

Talitrus locusta.

Orchestia littorea.

Orchestia Mediterranea.