26 AiTKicuLnxs:. 



•32. Melampus triticeus. 



Shell oblong-ovate, acuminate, shining, transversely substri- ; 

 ated, fulvous ; spire conical, whorls seven, flat, narrow ; aper- ' 

 ture oblong; peristome acute, with the right margin pale, 

 slightly ribbed within ; columella three-plaited, reddish-brown 

 at base. Length 3|, breadth 2 lines {Philippi). 



Auricula triticea, Philippi, MSS. 



Kiist, Auric, p. 49. t. 7. f. 20-22. 

 Cassidida (Siona) triticea, H and A. Adams in Proc. Zool. Soc. 



1854, p. 32. n. 16. 

 Cassidida (Sarnia) triticea, H. and A. Adams, Gen. rec. Moll. ii. 



p. 239. 

 Melampus triticeus, Pfr. Syn, Auric, n. 29 ; Mon. Auric, p. 36. 

 Hah. China? 



§ 4. Labrum furnished icith more or less distant parallel transverse 

 ribs ; body of the penultimate whorl bearing three plaits. 



33. Melampus luteus. B.M. 



Shell imperforate, ovate-conoidal, solid, rather smooth, uni- 

 formly yellowish ; spire conoidal, pointed ; suture scarcely im- 

 pressed; whorls ten to eleven, the upper ones flat, the last 

 forming more than two-thirds of the total length, very indi- 

 stinctly angulated above, attenuated in front ; aperture vertical, 

 narrow ; parietal plaits three, deeply placed, tooth-shaped, the 

 middle one larger ; columellar plait rather horizontal ; peristome 

 acute, with the margins not united; right margin thickened 

 within by a white callus, bearing nine to ten transverse ridges ; 

 columellar margin slightly thickened, adnate. Length 18, 

 greatest breadth 10J mill. 

 Auricula lutea, Quoy fy Gaim. Toy. Astrol, ii. 163. pi. 18. f. 25-27. 



Desh. in Lam. Hist. viii. p. 338. n. 27. 



Kiist. Auric, p. 39. t. 6. f. 1-3. 



Reeve, Conch. Syst. ii. pi. 187. f. 11. 



Moitss. Jav. Moll. p. 47. t. 5. 

 Melampus luteus, Beck, Ind. p. 106. n. 1. 



Mbrch, Cat. Told. p. 38. n. 782. 



H. and A. Adams in Proc. Zool. Soc. 1854, p. 10. n. 14 ; 

 Gen. rec. Moll. ii. p. 243. 



Pfr. Syn. Auric, n. 30 ; Mon, Auric, p. 36. 



M. E. Gray, Fig. Moll An, pi. 306. £ 5. 

 Conovulus Columbiensis, Miihlf MSS. 

 Conovulus luteus, Anton, Verzeichn. p. 48. n. 1772. 



0. Larger, spire more produced. Length 21, breadth 12 mill. 



Auricula lutea 0, Mouss. I. c. t. 5. f. 5. 



