14 AUEICULrD^E. 



bearing slight plaits; columellar margin thickened, adnate. 

 Length 11|, breadth 6 mill. 



/3. Smaller, more slender, chestnut-coloured, with three white 

 bands. 



Melampus oblongus, Pfr. in Proc. Zool. Soc. 1856. 

 Hah. Island of Bermuda. 



This shell resembles M. cingulatus, but is evidently more allied 

 to M. angiostomus, Desh., from which it differs by its size, by 

 the number of its whorls, and by the right margin not being 

 denticulate. 



8. Melampus Gundlachi. 



Shell subperforate, elliptical ovate, solid, rather smooth, uni- 

 formly greyish-white, or variously marked with brown bands ; 

 spire regularly conic, pointed ; suture linear; whorls ten to eleven, 

 flat, the last forming about three-fourths of the total length, obso- 

 letely angled above, contracted in front ; aperture perpendicular, 

 elongately semiovate, modified by two nearly equal plaits ; one 

 strong, deeply entering, thickened externally, below the middle 

 of the penultimate whorl, the other columellar, obliquely de- 

 scending to the margin ; peristome sharp ; right margin arched, 

 sinuated, terminating in a broad smooth space, furnished within 

 with from fifteen to twenty white transverse ridges ; columellar 

 margin much thickened, turgid, white. Length 16, greatest 

 breadth 10 mill. 



Melampus Gundlachi, Pfr. in Z.f. M. 1853, p. 126; Syn. Auric. 

 n. 7 ; Mon. Auric, p. 20. 



H. and A. Adams, Gen. rec. Moll. ii. p. 243. 

 Hab. Cuba and Bermuda. 



9. Melampus biplicatus. 



Shell conical, turbinate, chestnut-brownish; spire short, conic; 

 aperture elongated, dilated in front; columella two-folded; 

 labrum sharp, obsoletely striated within ; umbilicus funnel- 

 shaped, partly covered. Length 22, breadth 12 mill. (Desh.) 



Auricula biplicata, Desk, in Encycl. Meth. ii. p. 91. n. 11. 

 Conovulus biplicatus, Beck, Ind. p. 106. n. 1. 

 Melampus biplicatus, Pfr. Mon. Auric, p. 21. 

 Hab. America (Peck). 



10. Melampus flavus. B.M. 



Shell imperforate, obconic, smooth, chestnut-coloured, with 

 three narrow pale bands ; spire short, convexly conoidal, mucro- 



