30 HELIX HEMITROCHUS. 



H. MULTIFASCIATA, Weinlaud et Martens. PL 31, figs. 30-32. 



The preceding species is related to this form, but the broadly re- 

 flected lip, transverse, oval aperture and wider umbilicus will sep- 

 arate H. multifasciata from all of its allies. 



Umbilicate, depressed, moderately solid, slightly shining, whitish 

 or pink-tinged above, encircled by several or many (4-10) brown 

 bands, frequently interrupted into series of flecks; densely 

 costulate-striate ; spire low, apex brownish or corneous, minute ; su- 

 tures slightly impressed ; whorls about 5, slightly convex, the last 

 wide, depressed, rounded at the periphery, very deeply deflexed an- 

 teriorly, rather flat beneath, and indented around the center of the 

 base; aperture very oblique, transverse oval, brown or dark vinous 

 within ; peristome broadly expanded in every part, w r hite or ra- 

 diately maculated by the continuation of the bands to its edge ; the 

 margins converging, joined by a thin callus ; columellar margin re- 

 flexed, partly concealing the umbilicus, concave, slightly callus 

 within, with generally a purplish or brown spot at the insertion. 



Alt. 10 diam. 18 mill. 



Crooked Island, Bahamas. 



H. multifasciata WEINLAND ET MART. Malak. Bl. 1859, p. 17.- 

 PFR. Monographia v, p. 353. 



VAR. POLYT^NIATA Pilsbry. PI. 31, fig. 29. 



Narrowly umbilicate, solid, conical, less striate than H. multifas- 

 ciata ; white, the bands, except the peripheral, interrupted by broad 

 patches of white ; apex, parietal wall and columella purplish pink ; 

 columella with a strong tooth-like fold of callus. Differs from H. 

 multifasciata in the elevated form and columellar denticle. 



Alt. 16, diam. 18 mill. 



H. FILICOSTA Pfeiffer. PL 11, fig. 17. 



Nearly covered perforate, depressed-globose, regularly costate 

 ( costee filiform ), rather thin, fleshy white, encircled with obsolete 

 brown lines; whorls 4-j, convex, the last deflexed anteriorly; aper- 

 ture lunate-circular ; peristome acute, thickened within, labiate, 

 margins converging, joined by an entering rosy callus ; right mar- 

 gin scarcely expanded, columellar margin dilated, reflexed, rosy. 



Alt. 9, diam. maj. 14, min. 13 mill. (Pfeiffer.) 



Eleuthera, Bahamas. 



H.filicosta PFR. P. Z. S. 1845, P. 73 ; Monographia i, p. 239.- 

 J. H. THOMPSON P. Z. S. 1885, p. 214. REEVE Conch. Icon., f. 

 1437. 



