184 TORNATINA. 



T. RECTA Orbigny. PI. 22, figs. 13, 14, 15. 



Shell oblong, cylindrical, straight, thin, white, shining, delicately 

 spirally substriate; spire short, the suture channelled. Aperture 

 linear, straight above, suddenly dilated below, the columella with a 

 slight fold. Alt. 2, diam. 1 mill. 



Florida Keys ; entire West Indies St. Helena. 



Bulla recta ORB., Moll. Cuba, i, p. 131, pi. 4 bis, f. 17-20. Tor- 

 natina recta MORCH., Malak. Bl., xxii, p. 171. DALL, Rep. Blake 

 Gastr., p. 45 ; Cat. Mar. Moll. S.-E. U. S., p. 84. SMITH, P. Z. S., 

 1890, p. 297. 



Distinguished from T. candei by the weakness of the columellar 

 fold and the spiral striation ; from bullata by its small size. 



T. CANALICULATA Say. PI. 22, fig. 23 ; pi. 50, fig. 25, 26. 



Shell small, cylindrical, with low, conoidal terraced spire and 

 mamillar, strongly projecting minute apex. Ivory-white, with very 

 delicate growth-lines but no other sculpture. Whorls separated by 

 a channelled suture, concave-topped and more or less keeled at the 

 shoulder; the last whorl cylindrical, tapering below. Aperture 

 about eight-tenths the shell's length, narrow above, broadly rounded 

 below, the outer lip thin, arched forward, retracted below ; colum- 

 ella thickened, concave, with a strong spiral fold. Alt. 5'5, diam. 

 2'75 mill. (S.Carolina specimen). Alt. 4'2, diam. 2'1 mill. (Massa- 

 chusetts specimen). 

 Cape Cod, Massachusetts, to Haiti, and Silam, Yucatan, to 63 fms. 



Volvaria canaliculito SAY, Journ. Acad. Nat. Sci., Philn., v, p. 

 211, 1822. Bullina canaliculata SAY, Amer. Conch., pi. 19. Bulla 

 canaliculata GLD., Inv. Mass., p. 166, f. 97. Utrieulus canalieulaUu 

 STIMP., Check-lists, 4. BINNEY-GOULD, Invert. Mass., p. 219, f. 

 510. WATSON, Chall. Rep. Gastr., p. 655. Tornntiiw canaliculata 

 AD., Thes. Conch., ii, p. 566, pi. 121. f. 25. DALL, Blake Gastr., p. 

 45 ; Cat. Mar. Moll. S.-E. U. S., p. 84. Bulla obstricta GLD., Silli- 

 man's Journ. Sci., xxxviii, p. 196, 1840; Invert. Mass., p. 167, f. 

 96. Tornatina obstricta AD., Thes., ii, p. 566, t. 121, f. 29. 



This is a larger species than the West Indian T. candei, with 

 smaller nuclear shell. Plate 50, figs. 25, 26, represent New Bedford 

 specimens. Fig. 23 of pi. 22 was drawn from a Massachusetts speci- 

 men which had lost its apex, a common mutilation, even in living 

 shells. The apex is uptilted at an angle of 90, as in T. candei, etc., 

 but it is much smaller than in that species, although the shell is 



