PLATE V. 



Fig. 



1. JEstheria tenella (p. 31). — Left valve, small specimen ; Bradford Coal-pit, near 



Manchester: X 6 diam. 



2, 3. ,, „ Other larger specimens (left and right valves) : X 6 diam. 



4. „ „ Portion of the surface of one of these : X 75 diam. 



5. „ „ Left valve ; Astley, Lancashire : X 6 diam. 



6. „ „ Right valve ; Murgthal, Schvrarzwald : X 6 diam. 



7. „ „ Portion of the surface; Lanarkshire: X 100 diam. 



[See PI. V, fig. 7, for the valve, X 6 diam.J 



8. Estheria minuta (p. 42). — Right valve ; Sinsheim, Baden : X 6 diam. [For com- 



parison with PI. I, figs. 28 and 29.] 



9. „ „ (p. 53.) — Left valve ; Sulzbad, Bas-Rhin: X 6 diam. 



10. Estheria minuta, var. Brodieana (p. %&). — Portion of the surface, showing linear reti- 



culation ; Linksfield : X 50 diam. [Com- 

 pare PI. II, figs. 9— II.] 



11. Leaia Leidi/i ["^.WQ). — Outline of the two valves, open, in juxtaposition j Pottsville, 



Pennsylvania : nat. size. [After Lea.J 



12. ,, „ The same : X 5 diam. [After Lea.] 



13, 14. Candona (?) Salteriana (p. 122) — Bradford Coal-pit, near Manchester: X 30 diam. 



15. Candona (?) Tateana (p. 123). — Lammerton, Berwickshire: X 30 diam. 



16. Beyrichia subarcuata (p. 120). — Astley, Lancashire : X 30 diam. 



17. „ „ Portion of the surface : X 75 diam. 



18. BeyricUa Byrrha (p. 121). — Burakova, Russia: X 30 diam. 



19. „ „ Portion of the surface: X 75 diam. 



20. 21. Candona Boyersii (p. 124). — Richmond, Virginia ; and Deep River, North 



Carolina : X 30 diam. [For the punctated 

 Candona Emmonsii, see woodcut, fig. 12, p. 126.] 



22. „ „ Cast, in shale ; Culpepper County, Virginia : X 30 diam. 



23, 24. Candona glohosa (p. 126). — Linksfield, Elgin. Two left-hand valves, showing 



muscle-spot : X 30 diam. 

 25. Candona Kotahensis {^. 121). — Left valve; Kotah, on the Pranhita, Central India : 



X 30 diam. 

 26 — 28. Cypridea Valdensis (p. 127). — One right and two left valves, of somewhat variable 



outline ; Obernkirchn, Hanover : X 30 diam. 



29. „ „ Portion of the surface of one of these valves : 

 ^ X 75 diam. 



30. Cypridea Valdensis (?). — Probably a young individual ; Obernkirchn : X 30 diam. 

 31 — 34. Cypridea ohlonga (?) (p. 128). Probably varieties or modified valves (fig. 33 is 



most like the type) ; Obernkirchn, Hanover : 

 X 30 diam. 



I 



