290 
HISTORY OF BRITISH CRUSTACEA. 
of a pale yellow horn-colour, transparent ; front extremity 
sharper than the posterior. 
Hab. Cockburnspath, and in sand from Torquay. And also, 
according to Mr. Jones, abundant as a fossil in the Crag of 
Suffolk* 
Cythere reniformis, Baird.— Shell kidney-shaped, 
rough with hairs, both ends nearly equal in size ; centre of 
valves covered with a calcareous-looking crust. 
Hab. Berwickshire, and North Foreland, near Dover. 
Cythere albo-maculata, Baird. (Plate XVII. fig. 1.) 
- — Shell oblong, both ends and the lower margin densely 
hairy; dull-brown, covered with short spines, except where 
marked with two white, smooth, shining spots. 
Hab. Berwick Bay, and near Dover. 
Cythere alba, Baird.— Shell obovate, broadest in front; 
white, the margin purer white than the rest of the shell. 
Hab. Sea-shore at Dunbar. 
Cythere variabilis, Baird.— Shell oval, narrower in 
front, varying in colour and marking from fine flesh-colour 
to dark-brown, and often marked with streaks. 
Hab. Coast of Berwickshire, Dover. 
Cythere aurantia, Baird.— Shell somewhat kidney- 
* The Entomostraca of the Tertiary Formation, p. 51. 
