26 HELIX-PAPUINA. 



The above synonymy was first worked out by Tapparone Canefri. 

 The prominent characters of the species are its elevated spire, 

 angular periphery begirt with a brown line, strong, regular 

 sculpture, etc. 



Var. a. (pi. 3, fig. 59). Shell more convex, umbilicus more open,, 

 periphery less angular, destitute of a brown line. (Tap. Can.} 



Var. b. (pi. 3, fig. 60). Shell less elevated, distinctly carinated,. 

 whorls less convex. 



The H. gartneriana of Pfeiffer (pi. 8, figs. 57, 58) was reported 

 from Night Island, N. Australia by Macgillivray, but doubtless 

 erroneously, mistaking for it the somewhat similar H. poiretiana. 

 See also TATE, Trans. & Proc. Roy. Soc. S. Australia, v, p. 49, 50,. 

 1881-'82. The H. zocr, Pfr. is figured on pi. 9, figs. 75, 76. It seems 

 to be completely synonymous. 



H. poiretiana, which also has a basal brown line, differs from this 

 species in having the last whorl decidedly descending in front. 



H. CANOVARII Tapparone Canefri. PI. 3, fig. 56. 



Nearly covered umbilicate, elevated trochiform, longitudinally 

 very closely and minutely obliquely striated ; carinated ; pale horn 

 colored, but when the epidermis is removed it is pale violaceous, 

 flesh-colored toward the apex. 



Spire, high-conical, apex sub-acute. Whorls nearly 7, a little 

 convex, separated by a distinct suture, margined above ; last whorl 

 rather acutely carinated below its middle ; base little convex, hav- 

 ing very delicate radiating strise. Aperture ovate-subrhomboidal r 

 oblique ; peristome amethystine, a little thickened, all around sub- 

 expanded and more reflexed, margins not approximating, the 

 outer lip sub-angular in the middle, basal lip nearly straight, colu- 

 mella little oblique, dilated, almost closing the umbilicus. 



Alt. 21, greater diam. 21, lesser 19 mill. (T. C.) 



Banks of the river Fly, New Guinea* 



H. canovarii TAP. CAN. Ann. Mus. Civ. Genov. xix, p. 137, t. 3, 

 f. 6, 1883. 



Allied to H. blainvillei and H. blanfordi. Also to H. plagiostoma 

 of the Solomon Is. 



H. BLANFORDI AN A H. Adams. PI. 17, fig. 33. 



Covered perforate, conoid, rather thin, obliquely striated, and 

 ornamented with spiral minute striae ; shining, corneous-white. 



