468 K. J. Bush — MoUusca of Gape Hatterns. 



Cylichna cselata, sp. nov. 



Plate XLV, figure 15. 



Shell rather thick, opaque white, with a slightly liiistroiis surface, 

 of moderate size, somewhat conical in shape, with a truncated tip and 

 an elongated, tapering base. Spire concealed within a very deep pit; 

 the two or three whorls are distinctly visible in an end view and are 

 crossed by numerous, delicate, little curved riblets which curve over 

 the top of the body-whorl extending down a short distance, and 

 o-radually blend with the flexuous lines of growth. Commencing 

 about the middle of the whorl and covering the base there are nu- 

 mei-ous, fine, punctate, spiral lines, very much crowded anteriorly. 

 Aperture very narrow, expanded anteriorly ; outer lip a little pro- 

 duced at the top, bending round somewhat abruptly, then following 

 the outline of the body-whorl, and joining the inner lip in a regular 

 curve; inner lip much thickened at its base with a minute umbilical 

 chink behind it. Color yellowish white. 



Length, 3""' ; greatest breadth, l-5'""\ 



Rare in 15 to 43 fathoms. 



Bulla Candei D'Orb. 



Moll. Cuba, vol. i, p. 128, atlas, pi. 4, figs. 1-:?, 1853. 

 Plate XLV, figure 13. 

 Very common in 7 to 48 fathoms. 



"Volvula oxytata, sj). nov. 



Volvula, sp.. Bush, Report U. S. Cora. Fish and Fisheries, p. 84, for 1883, 1885. 

 Plate XLV, figure 12. 



Shell rather small, somewhat cylindrical, with a sharp, spike-like 

 apex and a tapering, rounded, anterior end, rather thin, semi-trans- 

 parent, somewhat lustrous, with four or five very fine, indistinct, 

 punctate, spiral lines on each end and very indistinct, microscopic 

 striffi on the intervening surface. Aperture long, very narrow, ex- 

 panded anteriorly; outer li|» thin, following the curvature of the 

 bodv-whorl to just below the middle where it contiiuies in a straight 

 line and joins the inner li]) in a broad curve; inner lip very thin, 

 slightly reflected anteriorly over a slight umbilical chink. Color 

 bluish-white under a pale yellow e))iderinis. 



Length of one of the largest sj)ecimens, 4"""; bi-endtli, r5""". 



Not uncommon in 7 to 1*7 fathoms. 



