MOORE — ON NEW BRACHIOPODA, ETC. 



193 



TABULAE, VIEW* OF ADDITIONS TO BRITISH SECONDARY BRACHI- 

 OPODA DISCOVERED BY THE AUTHOR, WITH THEIR STRATIGRA- 

 PHICAL DISTRIBUTION, (Continued..) 



Genera axd Species 



Thecididce 



Tliecideum Boachardii .... 



Deslongcliampsii 



Dicksonii 



duplication 



Forbesii 



granulosum .... 



Moorei 



ornatum 



pygnuBv/m 



rusticum 



serratum 



septatum 



triangularis 



Zellania Davidsonii 



globata 



Laboucherei 



liasiana 



oolitica , 



Authority. 



Davidson . 

 Davidson . , 



Moore 



Moore 



Moore 



Moore ... 

 Davidson . , 



Moore 



Moore 



Moore 



Moore 



Moore 



D'Orbigny 



Moore 



Moore 



Moore 



Moore 



Moore 



EXPLANATION OF PLATE II. 



Fig. 1. Tliecideum ornatum, Moore. Exterior of perfect shell enlarged. 



2. . Interior of ventral valve, showing raised oval pro- 

 cesses and septum. 



3. . Interior of small valve, much enlarged, showing 



the serrated septum and the delicate loop for the support of the 

 branchial membrane. 



Fig. 4. Tliecideum pygm&um, Moore. Perfect shell much enlarged. 



5. . Interior of ventral valve. 



6. . Interior of dorsal valve, ditto. 



7. . Profile of perfect shell. 



8. Crania canalis, Moore. Exterior of upper valve somewhat enlarged. 



9. . Young shell before possessing spinose expansions. 



10. ■ . Enlarged restoration of interior of valve, showing the 



muscular impressions and the grooved form of the spines. 



11. Crania Saundersii, Moore. Exterior of shell. 



12. -. Interior of valve, giving the position and form of the 



muscular impressions. 



13. Crania Ponsortii (?), Eug. Deslongchamps. Exterior of valve. 



14. . Interior of ditto. 



15. Discina Dundriensis, Moore. Enlarged exterior of shell. 



16. orbicularis, Moore. Exterior of valve enlarged. 



17. . Interior of ditto. 



18. . Block, with specimens of natural size. 



VOL. IV. Y 



