200 TORNATINA. 



minute umbilical chink. Alt. 0*083 in., diam. 0'041. Mouth, 

 breadth at same place, O'Oll inch. (Wats.}. 



West of Cape York, off south-west point of Papua, 28 fms. 



Utrieulus ( Tornatina) aratus WATS., J. L. S. L. xvii, p. 329; 

 Chall. Rep. Gastr., p. 658, pi. 49, f. 6. 



This species very much resembles T. amboinensis, but may at 

 once be distinguished by the top. 



T. LEPTEKES Watson. PL 24, figs. 29, 30. 



Shell rather small, thin, oblong, cylindrical, rounded on the 

 shoulder, very fine pointed, with sinistral upturned apex, narrowed 

 in front, spirally striate, with long, narrow, slowly widening mouth. 

 Sculpture : Longitudinals the lines of growth are very slight and 

 regular. Spirals the whole surface is scored with sharp-cut fine 

 furrows, which are about half the width of the interstices ; round the 

 top of the whorls runs a slight but sharp-edged axial keel. Colour 

 almost hyaline white from the extreme thinness of the shell. Mouth 

 a little shorter than the shell, very elongately and slightly curvedly 

 pear-shaped, rather narrow above and there channelled. Whorls 3, 

 besides Hin the sinistral embryonic apex. Outer lip very gently 

 curved ; its edge line retreats very much above and in front. Top : 

 there is a very short scalar spire, in which the first regular whorl is 

 elevated and is truncately conical, the second hardly shows above 

 the third ; in the middle rises the small sinistral, more than half 

 turned over apex ; the sutural canaliculation is a shallow rounded 

 furrow, with a sharp-edged external border carinating the whorls. 

 Inner lip ; there is a thin but distinct labial pad ; the curve of the 

 body is convex, and contracts slowly from the top of the mouth to 

 the front, which is not truncated ; the pillar is long, oblique, with a 

 small reverted lip and a very slight-long-twisted tooth, behind which 

 is a feeble furrow, caused by an impression made in the shell. Alt. 

 0'14 in. diam. 0'06 inch. Mouth, breadth at same place, 0'02 inch. 

 ( Wats.). 



Raine Island, Cape York, Australia, 155 fins. 



Utriculus (Tornatina) leptekes WATS., Journ. Linn. Soc. Lond. 

 xvii, p. 327 ; Chall. Rep. Gastr., p. 656, pi. 49, f. 3. 



This species differs from Utrieulus acrobeles in its narrower form 

 and thinner texture, in its sculpture, in its larger mouth, in its spire, 

 it sutural canaliculation, and its apex, which is more prominent. 

 (Wats.). 



