PAPUINA. 291 



tinct, very fine, oblique and flexuous lines of growth, in addition to 

 which, under a powerful lens, minute but feeble spiral striae are 

 observable. The base is similarly sculptured, but the radiating 

 lines of growth have a rather coarser appearance. A few indented 

 irregular concentric lines upon the base, and a few short oblique 

 ones upon the body-whorl above the keel and behind the lip, may 

 be individual rather than specific characters. The aperture is 

 oblique, whitish within, and much pointed and channelled in front 

 at the termination of the keel. The upper lip is thin, expanded, 

 and tinted with dark brown at the edge ; the lower is also similarly 

 colored, is strongly reflexed, and in the umbilical region somewhat 

 expanded. The terminations of the peristome are remote, but con- 

 nected by a thin layer of callus upon the flat surface between. 



"The single specimen, all that is known of this species, has 

 recently been purchased by the British Museum. Until lately it 

 formed part of a collection which was got together many years ago, 

 and which remained packed up for fifty or sixty years. Although 

 no locality accompanied the shell, we can safely assume, from its 

 resemblance to allied forms, that it was an inhabitant of New Gui- 

 nea or some adjacent island. H.ferussaci of Lesson, and H. exsul- 

 tans of Canefri, are the nearest allies. Neither of these species is 

 nearly so large as that now described. The former is higher in 

 proportion to the width, and is described and figured as being of an 

 uniform rich chestnut color, excepting the golden yellow carina and 

 edging to the suture. On the contrary H. hedleiji is much wider in 

 proportion to the height, and the difference of colour between the 

 upper and lower surfaces is most marked. Besides this the aper- 

 ture in Lesson's shell appears to be dark brown, whereas in this it 

 is white. From H. exsultans the present species is distinguished, 

 not only by its considerably larger size, but also by a difference of 

 coloring and the greater flatness of the whorls and the base. 



" I have named this interesting form after Mr. C. Heclley, author 

 of several valuable papers on terrestrial mollusca of Australia, New 

 Guinea, etc. " (Smith.) 



Alt. 30, greater diam. 36, lesser 30 mill. 



Probably New Guinea. 



Helix (Geotrochus) hedleyi E. A. SMITH, Jouru. of Conch, vii, p. 

 72, (Oct. 4, 1892). 



