TORNATINA. 183 



T. KNOCKERI Smith. PL 22, fig. 28. 



Shell cylindrical, whitish ; spire turrited, very short ; apex tuber- 

 cular; whorls 5, the last polished, smooth, angular and plicate 

 above. Aperture nearly as long as the last whorl ; lip straight ; 

 columella uniplicate. Alt. 4'5, diam. 2 mill. (Smith). 



Whydah, West Africa. 



Tornatina knockeri SMITH, P. Z. 8., 1871, p. 738, pi. 75. f. 30. 

 Conf. COOKE, Ann. Mag. N. H. (5), xvii, p. 129. 



Easily known by its flattish spire, tubercular apex, and the pli- 

 cations at the upper part of the bodv-whorl (Smith'). 



This species is closely allied to the Red Sea forms mucronata 

 Phil, and issellii Pils. 



Species of the East Coast of America and the West Indies. 



The forms found in this region all have a conspicuous, mamillar, 

 upturned nucleus. 

 a. Surface spirally striated. 



b. Large, alt. about 10 mill., bullata. 

 bb. Small, alt. about 2 mill., recta. 



aa. Surface of body-whorl without spiral striae, canaliculata, candei, 

 liratispira. 



T. BULLATA Kiener. PI. 50, fig. 30 ; pi. 22, figs. 17-19. 



Shell solid, ivory-white, cylindrical, a little constricted in the 

 middle, having faint growth-striae and very fine spiral wavy strice all 

 over, but fainter on the shoulder. Spire conical, terraced, the apex 

 minute, overturned, and projecting, mamillar. Suture deeply chan- 

 nelled, but whorls not concave above. Aperture long and narrow 

 above, the outer lip inflexed somewhat, columella short, concave, 

 with one stout fold. Alt. 11, diam. 5 mill. ; alt. 9, diam. 3*8 mill. 



Florida Keys, entire West Indies. 



Tornatella bullata KIENER, Sp. et Icon., Coq. Viv., p. 5, pi. 1, f. 4. 

 Tornatina bullata MORCH, Mai. BL, xxii, p. 171. DALL Cat. 

 Mar. Moll. S.-E. U. S. p. Sl.Bulla canaliculata ORB. (not Say), 

 Moll. Cuba p. 133, pi. 4 bis, f. 21-24. Tornatina olivula A. AD., 

 Thes. Conch., ii, p. 569, pi. 121, f. 34. 



This is the largest of the West Indian Tornatinas. It has the 

 same general form of T. canaliculata and T. candei, but is distin- 

 guished by its close spiral striation. The synonymous T. canalicu- 

 lata Orb. (not Say) is shown in pi. 22, f. 17-19 ; and T. olivulu Ad., 

 also a synonym, in pi. 25, f. 47. 



