PLATE III. 



Fig. 



1 a, h. Cypridinella monitor, sp. nov. Cast. Vise. (Page 24.) 



a, Left valve seen ; b, dorsal aspect. Magnified 4 diameters. 



2 a — c. CypridelUna clausa, sp. nov. Cast of carapace; imperfect at anterior extremity. Cork. 



(Page 27.) 



a. Right valve ; h, ventral aspect ; c, posterior aspect. Magnified 4 diameters. 



3 a — c. Cypridinella clausa, sp. nov. Cast of carapace, somewhat broken at both ends. Cork. 



(Page 23.) 



a, Right valve shown ; b, ventral aspect ; c, anterior aspect. Magnified 4 diameters. 



4 a — e. CypridelUna Bu?-rovii, sp. nov. Cast of carapace. Settle. (Page 27.) 



a, Right valve shown (the beak should be rather more definite) ; b, ventral aspect ; c, dorsal 

 aspect ; d, posterior view ; e, anterior aspect. Magnified 4 diameters. 



5 a — c. CypridelUna Burrovii, sp. nov. Shell partially preserved on cast of carapace. Settle. (Page 28.) 



a. Left valve shown (the beak is broken) ; b, ventral aspect ; c, hinder end. Magnified 

 4 diameters. 



6 a — c. Cypridinella Bosqueti, sp. nov. Cast of carapace. Vise. (Page 23.) 



a. Left valve seen ; b, dorsal aspect ; c, front-view. Magnified 4 diameters. 



7 a — c. CypridelUna vomer, sp. nov. Shell. Cork. (Page 25.) 



a, Right valve ; b, front-view ; c, edge- view. Magnified 4 diameters. 



8. CypridelUna Burrovii var. Long nor iensis, nov. Shell. Longnor, Derbyshire. Outline of the 



right valve. (Page 28.) , 

 9 a — c. CypridelUna elonyata, sp. nov., var. Hibernica, nov. Carapace. Cork. (Page 29.) 



a. Left valve shown ; b, ventral aspect ; c, front aspect. Magnified 4 diameters. 



10 o — c. CypridelUna vomer, \&v. cultrata, nov. Shell. Cork. (Page 30.) 



a, Right valve; b, end-view; c, edge-view. Magnified 4 diameters. 



11a — c. Cypridinella vomer, s^. TiOY. Cast with remnant of shell. Cork. (Page 25.) 



a. Right valve ; b, front-view ; c, edge-view. Magnified 4 diameters. 



12 a — c. Cypridella obsoleta, sp. nov. Carapace, with shell reduced by weathering. Cork. (Page 34.) 



a, Right valve shown ; b, ventral aspect ; c, front-view. Magnified 4 diameters. 



13 a, b. Cypridinella Maccoyiana., sp. nov. Carapace. Cork. (Page 24.) 



a. Right valve shown ; b, front-view. Magnified 4 diameters. 



14 a — c. Cypiidella Koninckiana, Jones. Shell. Cork. (Page 34.) 



a, Right valve ; b, ventral aspect ; c, front-view. Magnified 4 diameters. 



15 a, b. CypridelUna alta, sp. nov. Carapace. Cork. (Page 31.) 



«, Right valve shown ; b, front-view. Magnified 4 diameters. 



16 a, b. Cypridella Koninckiana, Jones. Shell. Cork. (Page 34.) 



a. Right valve ; b, ventral view. Magnified 4 diameters. 



17 a — d. Cypridella KonincJciana, Jones. Shell. Cork. (Page 34.) 



a, Right valve ; b, end-view ; c, ventral aspect ; d, three-quarters view of valve obliquely 

 placed, for comparison with other figures, as PL IV, fig. 6 a. Magnified 4 diameters. 



18 a, h. Cijpj-idellina along at a, sp. nov. Cast of carapace. Vise. (Page 29.) 



a, Showing left valve; b, dorsal aspect. Magnified 4 diameters. 



19 a, b. CypridelUna elongata, sp. nov. Cast of carapace. Vise. (Page 29). 



a, Showing left valve ; b, front-view. Magnified 4 diameters. 



20 a, b. CypridelUna Bosqueti, sp. nov. Cast of carapace. Vise. (Page 31.) 



a, Showing right valve (the beak should be distinct, in a line with the tubercle) ; b, dorsal 

 view (the anterior protuberance is an error). Magnified 4 diameters. 



21a — e. CypridelUna Burrovii, sp. nov. Cast of carapace. Settle. (Page 27.) 



a. Showing left valve ; b, ventral aspect ; c, dorsal aspect ; d, front-view ; e, back-view. 

 Magnified 4 diameters. 



