PLATE XVI. 



MoDiOLA [continued). 

 Figs. 



1 — 3. M. reversa, Sow. Greensand, Blackdown. Wiltshire Collection, Wood- 

 wardian Museum. (P. 94.) 



1. Right valve. 



2. a, right valve ; h, dorsal of both valves. 



3. Ornamentation, a little posterior to the centre of the valve x 4. 



4—6. M. ligcriensis (d'Orb.). Ferna-hed, Atherfield. (P. 96.) 



4. Wiltshire Collection, a, left valve; b, dorsal of both valves. 



5. Leckenby Collection. «, left valve; 6, dorsal of both valves. 



6. Leckenby Collection. Part adjoining middle of ventral edge x 2. 



7— 10. M. suhsimplex (d'Orh.). Crackers, Atherfield. (P. 97.) 



7. Leckenby Collection, Woodwardian Museum. Right valve. 



8. Wiltshire Collection, Woodwurdiau Museum. Left valve. 



9. Wiltshire Collection, Woodwardian Museum, a, right valve ; b, dorsal of both 



valves. 

 10. Museum of the Geological Society of London (No. 2078). a, left valve ; b, dorsal 

 of both valves. 



