PLATE III. 



Fig. 



1 a, h. Cypridinella monitor, sp. no v. Cast. Vise. (Page 24.) 



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



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



(Page 27.) 



a, Right valve ; b, 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. Cypridellina Burrovii, 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. Cypridellina Burrovii, ^^p.^o^. 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. 



Cypridinella Bosqueti, sp. nov. Cast of carapace. Vise. (Page 23.) 



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



Cypridellina vomer, sp. nov. Shell. Cork. (Page 25.) 



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



Cypridellina Burrovii var. Longnoriensis, nov. Shell. Longnor, Derbyshire. Outline of the 



right valve. (Page 28.) 

 Cypridellina elongata, sp. nov., var. Hibernica, nov. Carapace. Cork. (Page 29.) 

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



Cypridellina vomer, var. cidtrata, nov. Shell. Cork. (Page 30.) 



a, Right valve; 6, end-view ; c, edge-view. Magnified 4 diameters. 



Cypridinella vomer, sp. nov. Cast with remnant of shell. Cork. (Page 25.) 

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



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, 



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

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



Cypridella Koninckiajia, Jones. Shell. Cork. (Page 34.) 



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



Cypridellina alia, STp. nov. Carapace. Cork. (Page 31.) 



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



Cypridella Koninckiana, Jones. Shell. Cork. (Page 34.) 

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



Cypridella Koninckiana, Jones. Shell. Cork. (Page 34.) 



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

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



Cypridellina elongata, s'p. nov. Cast of carapace. Vise. (Page 29.) 

 a, Showing left valve ; 6, dorsal aspect. Magnified 4 diameters. 



Cypridellina elongata, sp. nov. Cast of carapace. Vise. (Page 29). 



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



Cypridellina 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. 



21 a — e. Cypridellina 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. 



6 a- 



-a. 



7 a— 



-c. 



8. 





9 a- 



-c. 



10 a- 



-c. 



11 a- 



-c. 



12 a- 



-c. 



13 a. 



b. 



14 a- 



-c. 



15 a, 



b. 



16 a, 



b. 



17 a- 



-d. 



18 a. 



b. 



19 a, 



b. 



20 a. 



b. 



