HADRA. 277 



H. FODINALIS Tate. PI. 58, figs. 2, 3, 4. 



Shell moderately umbilicated, globosely conic, rather thin and 

 somewhat glossy ; surface coarsely and closely wrinkled trans- 

 versely, somewhat closely and finely incised-striate in a spiral 

 direction. 



Whorls four and a half, regularly convex, separated by a linear 

 suture ; first two and a half whorls almost smooth, but minutely 

 granulated and obsoletely wrinkled ; the granulations disappear, 

 and the wrinkles increase in strength and closeness with the revo- 

 lutions of the spire. 



Last whorl somewhat inflated, slightly descending in front, base 

 convex to the umbilical margin. Umbilicus moderately wide with 

 precipitous sides, and toward the inner lip subangulated. 



Aperture oblique, subcircular ; peristome subacute, slightly 

 reflected, margins not joined by a callus. Columella margin dilated 

 above and slightly extending over the umbilicus. 



Color, a pale-brown above, paler beneath, sometimes with a nar- 

 row reddish-brown infuscation in front of the suture. 



Animal : Foot of a chestnut color with gray rugosities, broad 

 and short behind ; eye-pedicels of a blackish and tentacles of a 

 chestnut color ; collar milk-white. 



Major and minor diameters, 18 and 15 mill.; altitude, 14*25 

 mill. ; height of aperture, 10, length of aperture 9 mill. ; diameters 

 of umbilicus 3 and 3*5 (vix) mill. {BednalL} 



Affinities and differences : The nearest ally of this species is H. 

 nullarborica Tate, from which it differs in the absence of an 

 impressed suture, finer and closer spiral stria?, larger umbilicus, as 

 well as by coloration and thinness of test ; it is related to H. angas- 

 iana, Pfeiffer, but has more regularly convex whorls, coarser 

 growth-lines, less rotund and not so descending aperture, less thick- 

 ened and reflected peristome. H. bitceniata Cox, is a more distant 

 alliance, from which it differs mainly by its less elevated spire and 

 large umbilicus. (Bednall.*) 



Waukaringa, S. Australia, beneath blocks of stone ; betw. Victoria 

 Spring and Fraser Range. 



Helix (Hadra) fodinalis TATE, Trans. Roy. Soc. S. Austr., xvi, p. 

 63, t. 1, f. lore. (Dec. 1892). 



H. EVERARDENSIS Bednaill. PL 58, figs. 22, 23, 24. 



Shell umbilicated, globosely conical, somewhat thin, translucent, 



