TEIDACNA AND HIPPOPUS.— Plates I. to VI. 

 (Thes. pi. 485-489*). 



Fig. 



1, 12. MUTicA, sp. 3, Lamarck. — T. gigas, Rve. sp. 1, not 



Linn., not Lam. — Indian seas. 



2, 7, 15, 17. SQUAMOSA, sp. 2, Lamarck. — T. gigas, part 



Linn.; var. f. 17, serrifera, Lam. — Moluccas. 



3, 4. ELONGATA, sp. 6, Lamarch. — T. gigas, Lam. E. M. pU 



495, f. 1 ; conipressa, Eve. Con. Icon. sp. 5. — Hab. — ? 

 5, 6, 8, 9, 10. CROCKA, sp. 5, Lamh. — T. gigas, var. Linn. ; 

 T. ferruginea, Rve. (f. 9); Ctnningii, Rve. (f. 8). — 

 Indian seas ; Philippines. 



7. See SQUAMOSA, above. 



10. See CROCEA, above. 



11. GIGAS, sp. 1, Linna'us (Chama). — Navigator's Islands. 



12. See MUTICA, above. 



13. 14. EUDis, sp. 8, Rue. Con. Icon. sp. 4. — Philippines. 



15. See SQUAMOSA, above. 



16. scAriiA, sp. 4, Meusch, fid. A. Adams.— Ilab. — ? 



17. See SQUAMOSA, above, var. serrifera. 



18. LANCEOLATA, sp. 7, Sowcrby. — Philippines. 



Genus Hippopus. — Plate V. 

 (Lower figure). 

 H. MACULATUS, Meusckeii. — Eastern seas. 



