154 
8. Potyponta SpENGLERI, Chemn. 
Trochus Spengleri, Chemn. v. pl. 169. f. 1631. 
Hab. 2 
9. PoLyDONTA OCHROLEUCOS, Gmel. 
Trochus ochroleucos, Gmel.; Chemn. v. pl. 169. f. 1629. 
Hab. 2 
10. Potyponta VERNALIs, Chemn. 
Trochus vernalis, Chemn. v. pl. 169. f. 1625-26.—Trochus ver- 
mis, Gmel.—Trochus subviridis, Phil. 
Hab. ? 
11. PotypoNTA VIRIDESCENS, Chemn. 
Trochus viridescens, Chemn. v. pl. 170. f. 1643-44.—Trochus vi- 
ridis, Gmel. 
Hab. Capul, Philippines. 
12. PotypoNnTA RETICULATA, Wood. 
Trochus reticulatus, Gray in Wood, Ind. Test. Suppl. pl. 6. f. 38. 
Hab. Bencoonet, Sumatra, on the reefs (77. oe 
13. Potyponta LINEATA, Lamk. 
Trochus lineatus, Lamk. Hist. An. s. Vert. tom. vii. p. 23. 
Hab. Swan Point (Dring). 
14. Potyponta Hanueyana, Reeve. 
Trochus Hanleyanus, Reeve, Conch. Syst. t.  f. —Trochus en- 
grainus, Philippi. 
Hab. Swan Point (Dring). 
15. PotyponTa TIARATA, Quoy & Gaim. 
Trochus tiaratus, Quoy & Gaim. Voy. del Astr. t. 64. f. 8.—Poly- 
donta elegans, Gray. 
Hab. New Zealand (Earl). 
16. Potyponta rncrassata, Lamk. 
Trochus incrassatus, Lamk. Hist. An. s. Vert. tom. vii. p. 20; 
Chemn. Conch. v. p. 169. f. 1632. 
Hab. ? 
17. PotyponTa ELEGANTULA, Wood. 
Trochus elegantulus, Gray in Wood, Ind. Test. Suppl. p. 5. f. 9. 
Hab. 2 
18. PotyponTa asPERA, Chemn. 
Trochus asper, Chemn. Couch, v. pl. 169. f. 1633-34. 
Hab. Banguey, province of North Iloco, island of Luzon, on the 
reefs at low water (H. C.). 
19. Potyponta concrinna, Philippi. 
Trochus concinnus, Phil. Zeit. f. Malac. 1846, July, p. 105. 
Hab. 2 
