162 DR BAIRD ON ENTOMOSTRACA. 



FAMILY 1.— CYPRIDiE. 



Two pairs of antennae ; superior slender, jointed and setiferous, 

 inferior large and pediform. Body enclosed in a bivalve shell. 

 Eye single. 



Genus 1st. — Cypris — Muller. 



Two pairs of feet only, one pair always contained within the 

 shell. Posterior or pediform antennae, furnished with a pencil of 

 long hairs or filaments. Abdomen terminated by a long slender 

 bifid tail. Animal swims freely in the water. 



Sp. 1st. — C. tristriata, Baird. Trans. Berw. Nat. Club. C. 

 pubera, Baird. Mag. Zool. and Bot. Hab. Pond at Little Swin- 

 ton. 



Sp. 2d. — C. vidua, Muller. Entomost. 



Sp. 3d. — C. monacha, Muller. Entomost. Hab. NcAvnham 

 Loch, Northumberland. 



Sp. 4th. — C. fusca, Straus. Mem. Mus. d'Hist. Nat. 



Sp. 6th. — C. compressa, Baird. Trans. Berw. Nat. Club. C. 

 punctata, Koch. Deutsch. Crustac, H. 21. t. 23. Hab. Yetholm 

 Loch. 



Sp. 6th. — C. minuta, Baird. Trans. Berw. Nat. Club. Hab. 

 Pools near Yetholm. 



Sp. 7th. — C. Joanna, Baird. Trans. Berw. Nat. Club. Hab. 

 Pool on hill opposite Abbey St Bathans. 



Sp. 8th. — C. elongata, Baird. Trans. Berw. Nat. Club. Hab. 

 Pool at Yetholm. 



Sp. 9th. — C. Westwoodii, Baird. Trans. Berw. Nat. Club. 

 Hab. Yetholm Loch. 



Sp. 10th. — C. gibbosa, Baird, Mag. Zool. and Bot. 



Sp. 11th. — C. clavata, Baird. Mag. Zool. and Bot. 



Sp. 12th. — C. strigata, Muller. Entomost. Hab. Pool on sea- 

 shore, a little above high water-mark, at Thornton Locli, near 

 Cockbumspath. 



Sp. 13th. — C. elliptica, n. s. 



Sp. 14th. — C. sella, n. s. 



Qenus 2d. — Candona. 

 Two pairs of feet, one pair contained within the shell. Abdo- 

 men terminated by a long slender bifid tail. Pediform antennpo 



