10 
6. MELAMPUS BIDENTATUS, Say. 
Melampus bidentatus, Say, Amer. Conch.—Auricula cornea, Desh. 
Encycl. Méth. Vers, p. 90. no. 9; Lamk. Hist. ed. Desh. tom. vii. 
p- 339. no. 28. 
7. MELAMPUS PYRIFORMIS, Petit. 
Auricula pyriformis, Petit, Proc. Zool. Soc. 1842; Ann. & Mag. 
Nat. Hist. xii. p. 437. 
8. MreLampus PALLESCENS, Sowerby. 
Melampus pallescens, Sow. Zool. Beechey’s Voy. tab. 38. f. 11.— 
Auricula pallescens, Kiist. Chemn. Neuer Conch. Cab. (Auriculacea) 
p. 51. tab. 5. f. 11. 
9. Mretamrus Puixiprr, Kister. 
Auricula Philippii, Kiist. Chemn. Conch. Cab. (Auriculacea) p. 50. 
tab. 7. f. 23-25.—Auricula Ceylanica, Petit, Proc. Zool. Soc. 1842, 
p- 42. 
10. MeLampus coronuuus, C. B. Adams. 
Auricula coronulus, C. B. Adams, Contrib. to Conch. 
11. MeLampus BorEALIs, Conrad. 
12. Metampus tivipus, Linnzus. 
Voluta livida, Linn. Syst. Nat. ed. 12, p. 1187.—Auricula livida, 
Desh. Encycl. Méth. Vers, p. 91. no. 10. 
13. MeLampus ATER, Muhlfeldt. 
Conovulus ater, Muhlf. iv litt.; Anton, Verzeich. p. 48. no. 1773. 
—Auricula caffra, Kist. Chemn. Conch. Cab. (Auriculacea) tab. 5. 
f. 6-8.—? Conovulus Sciari, Lesson. 
14. MeLampus LuTevs, Quoy & Gaimard. 
Auricula lutea, Quoy & Gaim. Voy. Astrol., Zool. ii. p. 163. pl. 13. 
f. 25-27.—Conovulus luteus, Anton.—Auricula Columbiensis, Mihlf. 
Subgenus Trai, Gray. 
Foot posteriorly acute, entire. 
Shell ovate, smooth; spire elevated ; aperture narrow, linear, di- 
lated anteriorly ; inner lip usually with three oblique plaits; outer 
lip acute, smuated posteriorly, internally with one or more transverse 
elevated ridges. 
15. Mevampus (Trai) pusiLuus, Gmelin. 
Voluta pusilla, Gmel. p. 3436. no. 7.—Bulimus ovulus, Brug. Dict. 
no. 71. —Auricula ovula, Féruss. Prod. p.104. no. 21.—Auric. nitens, 
Lamk. viii. 333.—Conovulus nitens, Cuv.—Voluta triplicata, Donov. 
B. S. t. 138.—Aurie. leucodonta, Nuttall, MSS. 
16. Metameus (Tratta) Panamensis, C. B. Adams. 
_ Auricula Panamensis, C. B. Adams, Shells of Panama, p. 209. 
no. 312. 
