124 
Fig. 
= 
10. 
EL. 
12, 
ON NEW BRACHIOPODA. 
PLATE 1. 
Zellania Davidsoniü, Moore, perfect shell, enlarged; 
J, foramen. 
Ventral valve enlarged. 
Interior of dorsal valve enlarged, 
shewing its rugose surface; c, 
cardinal process; a, area; Z, teeth 
sockets; r, ridge; s, septum. 
” ” 
” ”„ 
Zellania Laboucherei, Moore, perfect shell, enlarged. 
Exterior of ventral valve, 
shewing lines of growth. 
” ” 
Zellania liasiana, Moore, enlarged illustration. 
" »  Ventral valve enlarged. 
Interior of dorsal valve, enlarged ; 
shewing teeth sockets, cural spurs, 
” ” 
ridges, and septum. 
Rhynchonella Lopensis, Moore, enlarged figure. 
» » Ventral valve enlarged. 
Thecideum Bouchardii, Dav., enlarged illustration of 
the perfect shell, shewing 
the comparative size of the 
dorsal valve, and the wavy 
margin of the larger valve; 
a, area; d, deltideum. 
Interior of the ventral valve, 
enlarged; m, muscular de- 
” ” 
pressions. 
