PLATE VI. 



All the specimens are magnified 25 diameters, except figs. 1 a, b. 



Fig. 



1 



a- 



—c. 



Cypridina {PJiilomedes) elongata, sp. nov. Clay-cross Colliery, Derbyshire. 

 (Page 81.) 



a, Left valve, and b, ventral view (without the hook), magnified 5 dia- 

 meters ; c, portion of the surface, magnified 25 diameters. 



2 



a- 



—c. 



CytliereUa valida, sp. nov. Calees, East Cumberland. (Page 70.) 

 a. Right valve ; b, left valve ; c, ventral view. 



3 



a, b. 



CytliereUa Benniei, sp. nov. Mouse-Water, Lanarkshire. (Page 70.) 









a. Left valve ; b, ventral view. 



4 



a. 



b. 



CythereUa Bemiiei, sp. nov. Calderside, Lanarkshire. (Page 70.) 

 a. Right valve ; b, ventral view. 



5 



a, 



b. 



CythereUa Benniei^ sp. nov. Calderside, Lanarkshire. (Page 70.) 

 a. Left valve ; b, dorsal view. 



6 



a. 



b. 



CythereUa recta, sp. nov, Auchenbeg Old Quarry, Lanarkshire. (Page 71.) 

 a. Left valve ; b, ventral view. 



7 



a, 



b. 



CythereUa Benniei, sp. nov. Large individual. Kennoway Den, Fifeshire. 

 (Page 70.) 



Q 

 O 



a. 



b. 



Kjyiiiereua otcvis, jones. v^ampsie, oiiningsniie. ^^I^age i a.j 

 a, Right valve ; b, edge view. 



Q 







K^yitiefeiia concmna, sp. nov. rrom jjaviQ ure s specuueiio iii iiic xiuii- 

 terian Museum, Roy. Coll. Surgeons, London. (Page 71.) 





a- 



—e. 



lyyitierena scrooicuiaia, sp. nov. a, jcrom udyvu. uies speLiLueiib jiii luc 

 Hunterian Museum, Roy. Coll. Surgeons, London ; h, c, d, and e, from 

 Robrovston, Lanarkshire. (Page 76.) 



a, Left valve ; b, right valve, rather crushed ; c, right valve ; d, left 

 valve ; e, dorsal view. 



11 



a. 



b. 



CythereUa recta, sp. nov. Wilsontown, Lanarkshire. (Page 71.) 

 a, Left valve ; b^ dorsal view. 



12 



a, 



b. 



CythereUa concinna, sp. nov. Holwell, Somerset. (Page 71.) 

 a, Right valve ; b, ventral view. 



13 



a. 



b. 



CythereUa Hibernica^ sp. nov. Cultra, County Down, Ireland. (Page 72.) 

 a. Right valve ; b, edge view. 



14 



a. 



b. 



CythereUa cBqualis, sp. nov. Great Orme Head, North Wales. (Page 74.) 

 a. Side view ; b, dorsal view. 



15 



a. 



b. 



CythereUa cequalis, sp. nov. Gare, Lanarkshire. (Page 74.) 

 a. Side view ; h, dorsal view. 



16 



a. 



b. 



CythereUa aqualis, sp. nov. Gare, Lanarkshire. (Page 74.) 

 a, Side view ; b, dorsal view. 



17 



a. 



b. 



CythereUa Benniei, var. lowensis. Upper Coalmeasures ; Iowa, North 

 America. (Page 77). 



a. Left valve ; b, ventral view. 



18 



a, 



b, c. 



CythereUa subreniformis, sp. nov. Fusulina-limestone ; Iowa, North 

 America. (Page 79.) 



a. Left valve ; b, right valve, interior ; c, ventral view. 



19 



a, 



b. 



CythereUa concinna ? Eusulina-limestone ; Iowa, North America. (Page 79.) 



