996 DR. J. E. GRAY ON CATTL.LUS. [DfC. 12, 



3. Catillus cooki., Recluz ; Reeve, f. 14. 

 Ilab. Philippines. 



4. Catillus orbicularis, Sowerby; Reeve, f. 5. 

 Hab. Philippines. 



5. Catillus lapeyrousii, Recluz. 

 Hab. ? 



6. Catillus suborbicularis. 

 Hab. ? 



7. Catillus bougainvillii, Recluz; Reeve, Icon. f. 30. 



Catillus ornatus, Adams and Angas. 

 Hab. New Ireland. 



8. Catillus variabilis. 

 Hab. ? 



9. Catillus macrocephalus. Reeve, f. 28. 

 Hab. Feejee Islands. 



10. Catillus depressus, Lesson; Reeve, f. 3. 

 Hab. Tahiti. 



I!. Catillus magnificus, Reeve, f. It). 



C. scarabeeus. Reeve, f. 12. 



? capuloides, Reeve, f. 19. 



Hab. Australian Seas ; Harmond's Islands. 



12. Catillus haustrum. Reeve, f. 18. 

 Hab. New Caledonia. 



13. Catillus sanguisuga. Reeve, f. 17. 

 Hab. New Caledonia. 



14. Catillus porcellanus, Reeve, Icon. t. 2. f. (i. 



Patella porcellana, Linn. 



Septaria borbonica, Fcrussac. 



Sandalium pieium, Schum. 



Navicella bimaculata, Reeve, Icon. t. 1. f. 2. 



N. elliptiea, Lanik. 



Hab. Mauritius ; Isle of France, Bourbon. 



B. Operculum moderate, as long or longer than broad, thick ; upper 

 lobes subequal, obtuse or acute; the right rib indistinct and 

 separated from the margin by a granular space, which is rvidest 

 ill the middle of the edge ; nucleus obscure, punctured. Laodia. 

 (Figs. 2«, 2 6.) 



