8 AUHICULIDJE. 



with extremely minute and closely-set spiral strife, semiopaque, 

 brown, destitute of a periostraca ; spire minute, slightly mucro- 

 nate ; whorls not quite three, the penultimate one inflated, the 

 last seiniglobose; aperture diagonal, oblong-rounded, pearly 

 shining within ; peristome scarcely interrupted ; right margin 

 straight, much curved above ; columellar margin dilated, exca- 

 vated, white. Length 12, breadth 9, height 5§ mill. 

 Otina fusca, A. Adams in Proc. Zool. Soc. 1851, 225. 



H. and A. Adams, Gen. rec. Moll. ii. 250. 



Pfr. Mon. Auric. 12. 

 Hah. Benguela. 



Subfam. H. MELAMPIN^E. 



Amphibious, or living in brackish water near the mouths of 

 rivers. Shell with the peritreme of the aperture acute, straight. 

 Columella plicate ; body of the penult whorl and right margin 

 of the peristome toothed or smooth. 



Melampea, L. Pfr. in Zeitschr. f. Mai. 1853, p. 8 ; Malac. Bl. 



1854, p. 146;' Mon. Auric, p. 13. 

 Melampinse, H. and A. Adams, Gen. rec. Moll. ii. p. 242. 



The following genera may be comprised in this subfamily: — 

 Melampus, Marintda, Pedipes, and Leuconia, which for its affinity 

 with Alexia is enumerated among the Auriculince in Pfeiffer's 

 ' Monograph.' 



2. MELAMPUS, Montfort. 



Shell ovate-conoidal or rather ovate, solid ; spire rather short; 

 aperture elongated, narrow ; columella distinctly plaited ; body 

 of the penidtimate whorl smooth, or furnished with from one 

 to five folds or teeth ; peristome straight ; right margin acute, 

 smooth within or furnished with transverse ridges. 



Melampus, Montfort, 1810, Condi. Syst. ii. 319. 

 Cuvier, Reyne An. ii. 414. 

 Say in Philad. Journ. ii. 245. 

 Lowe in Zool. Journ. v. 280. 

 Beck, Ind. 106. 

 Jay, Catal. 1839, 59. 

 Swains. Malac. 344 (subgenus). 



Gray in Syn. Br. Mas. 1842, 91, et inProc. Zool. Soc. 1847, 179. 

 Herrmannsen, Ind. yen. Malac. ii. 27. 

 C. B. Adams, Contr. to Conch, iii. 41. 

 A. Adams and Peeve, Voy. Samarany, Moll. 55. 

 Forbes in Voy. Rattlesnake, App. 361. 

 Mbrch, Cat. Yold. 38. 



