108 CATALOGUE OF BRITISH CRUSTACEA. 



12. CYTHERE PELLUCIDA. Clear Sea-shell-flea. 



Cy there pellucida, Baird, Brit. Ent. p. 173, t. 21, f. 7. 

 Boston (in sand). 



13. CYTHERE IMPRESSA. Impressed Sea-shell-flea. 



Cythere impressa, Baird, Brit. Ent. p. 173, t. 21, f. 9. 



a d. Arran (in sand). Presented by T. Rupert Jones, Esq. 

 Torquay (in sand) . 



14. CYTHERE QUADRIDENTATA. 4-toothed Sea-shell-flea, 



Cythere quadridentata, Baird, Brit. Ent. p. 173, t. 21, f. 2. 



a, b. Dogger Bank. Presented by T. Eupert Jones, Esq. 

 In sand. From Boston, Torquay, and Arran. 



15. CYTHERE CONVEXA. Convex Sea-shell-flea. 



Cythere convexa, Baird, Brit. Ent. p. 174, t. 21, f. 3. 



a c. Tenby (in sand). Presented by Dr. Baird. 



dg. Arran (in sand). Presented by T. Rupert Jones, Esq. 



Torquay. 



W. CYTHERE VIRIDIS. Green Sea-shell-flea. 



Cythere viridis, Leach, Sam. Ent. U. Comp. p. 81. 

 Scotland (Shores amongst Fuci and Confervas). 



17. CYTHERE SUBDELTOIDEA. 3-Cornered Sea-shell-flea. 



Bairdia subdeltoidea, T. Rupert Jones, Cret. Ent. t. f. 

 Cytherina subdeltoidea, Munster, Rcemer, Jahrb. t. f. 



a. Arran (var.), recent. Presented by T. Rupert Jones, Esq. 



2. CYTHEREIS. 



Cythereis, Jones, Ent. Cret. Form. 1849. 

 Cythere, Munster, Jahrb. f. Miner, sp. 

 Cytherina. Rcemer, sp. 

 Cypridina, Bosquet, Mem. Leye. 1847, sp. 



