TORNATINA. 201 



T. ACROBELEs Watson, PI. 24, figs. 31, c2. 



Shell rather small, spirally scored, oval, subcylindrical, bluntly 

 rounded in front, with a low subscalar spire crowned with a minute 

 prominent sinistral apex turned up on its side. Sculpture : Longitu- 

 dinals — there are faint growth-furrows drawn at the top into short 

 very oblique folds. Spirals — the whole surface is scored with fine 

 furrows, which are remote above bnt closer in front, where the inter- 

 vening surface is rounded ; a rounded keel lies below the suture. 

 Colour trauslucent white. Mouth markedly shorter than the shell, 

 straightish, clavate to pear-shaped, narrow and channelled above. 

 Whorls 4, exclusive of I5 of the apex which is sinistral. Outer lip 

 straight, very slightly appressed above, where it is separated from 

 the body of the slight, shallow sutural canal. Top: there is a short 

 distinct subscalar spire, in which the first regular whorl hardly 

 shows, but which is crowned with the small sinistral half-turned over 

 apex. Inner lip: there is a thin but distinct labial pad ; the curve 

 of the body is nearly straight, but is convex in front; the pillar is 

 very oblique, broad, flat and patulous, with a very broad, scarcely 

 twisted tooth, which is longitudinally furrowed so as almost to be 

 double ; in front of this tooth the pillar is truncated at its junction 

 with the outer lip. Alt. O'lS in., diam. 0055. Mouth breadth at 

 same place, 0"014 inch. (Wats.). 



Wednesday Island, Cape York, JSortheast Australia, 8 fms. 



Utrlcidus(Tornatina) acrobeles Wats., Journ. Linn. Soc. Lond. 

 xvii, p. 327 ; Chall. Rep. Gastr., p. 657, pi. 49, f. 4. 



This differs from Utricidus avenarius in the shape of the shell and 

 ofthesi)ire, and in the apex and pillar. Utricidus canaliciilatus 

 (Say), is much stumpier, and has a lower spire. The upturned apex 

 is like that of Odostomia lactea. (TFais.). 



T. APiciNA Gould. Unfigured. 



Shell minute, cylindrical, elongated, white, sculptured with very 

 delicate growth-lines ; apex mamillated ; whorls 4; suture channel- 

 led. Aperture three-fourths the length of the shell, very narrow; 

 •columellar fold obsolete ; lip arcuate when viewed in profile. 



Alt. 5, diam. 2 mill. {Gld.). 



Sydney Harbor, N. S. Wales, Australia. 



T. apicina Gld., Proc. Bost. Soc. N. H. vii, p. 139, 1859; Otia, 

 p. 112.— Tension-Woods, P. L. S. N. S. W. ii, p. 256. 



