HELIX-HADRA. 143 



rather deep ; whorls 4, convex, last more or less obtusely carinated ; 

 base convex, the striae and granulations gradually becoming fainter ; 

 umbilicus moderate, deep ; aperture lunately-ovate ; peristome simple 

 thin, more or less angular externally, at the columella triangularly 

 dilated above. (Coo;.) 



Alt. 0'30, greater diam. 0*55, lesser 0'47 inch. 



Evandale, North Rhine and Barrier Ranges, S. Australia. 



H. evandaleana PFR., P. Z. S. 1863, p. 528 ; Monographia v, p. 

 258. Cox, Monogr. Austr. L. Sh., p. 51, t. 9, f. 8. ANGAS Quart. 

 Journ. of Conchol. i, p. 135. 



I have not seen in any other species the same kind of rugose 

 striation, granulation, and pilosity, the last often obsolete, which 

 seems to be characteristic. Angas speaks of a " large umbilicus," 

 while Pfeiffer writes of the same shell "subanguste umbilicata." 



( Cox.) 



H. TOMSETTI Tate. PI. 58, figs. 13, 14, 15. 



Shell conoidly depressed, rather thin, widely and deeply umbili- 

 cated ; spire slightly elevated, widely conical, obtuse ; whorls five, 

 flatly convex, narrowly concavely depressed near the anterior suture, 

 and margined at the suture ; last whorl rounded, rather depressed 

 above, and bluntly angled at the periphery ; posterior to the angula- 

 tion at the periphery the surface is slightly depressed, thence convex 

 to the suture; base rather abruptly convex; aperture not descend- 

 ing in front, oblique to the vertical axis, rotundately lunate; peri- 

 stome simple, thin, disunited ; columella very slightly reflected over 

 the umbilicus. 



The ornamentation consists of coarse, irregular, oblique striations 

 and distant granulations ; the one and a half apical whorls granu- 

 lose only ; under surface striated. Colour of the living shell 

 unknown. (Tate.) 



Alt. 7, greater diam. 14J, lesser 12J mill.; alt. of apert. 6 ; diam. 

 of umbilicus 2? mill. 



Cape Borda, Kangaroo Island, 8. Australia. 



Helix Tomsetti TATE, Trans., Proc. and Rep. Roy. Soc. S. Austr., 

 ix, p. 63, t. 5, f. 13a-c. 1887. 



Somewhat intermediate between H. bordaensis and If. evandaleana, 

 having the shape of the former with the sculpture of the latter. 

 It is flatter and has a larger umbilicus than H. evandaleana. 

 (Tate.} 



