44 HELIX. 



Section VI. CRASPEDARIA, Lowe. 1854. 



H. DELPHINULA, Lowe. PL 33, figs. 63, 64. 



Rather widely, crenately umbilicated, widely carinated, spirally 

 costellate and decussately cancellate below, reticulated by oblique 

 and spiral lines above; yellowish white, chalky, whorls 7-8, sub- 

 planate, each fimbriately carinated; peristome augulated, a little 

 expanded, subcontinuous. Diam. 18-23 mill. 



Madeira, semifossil. 



Section VII. DISCULA, Lowe. 1854. 



H. TETRICA, Paiva. PI. 8, figs. 51-53. 



Widely umbilicated, solid, roughly granular, whitish, broadly 

 banded with, or totally dark chocolate color above; whorls 7, 

 slightly convex, suture distinct, the last whorl carinated, a little 

 depressed in front; peristome simple. Diam. 13-15 mill. 



Ins. Deserta Australis, near Madeira. 



H. POLYMORPHA, Lowe. PI. 8, figs. 56-64, 50^44, 45, 54, 55; PI. 



9, figs. 68, 71-82,89.. 



Widely umbilicated, striate, more or less roughened by close 

 granulations, marbled with brown and white above, dirty white 

 below, with a brown band ; whorls 7-8, planulate, the last acutely 

 carinated, subgibbous and suddenly deflected in front, base slightly 

 convex, smoother; peristome simple, margins approximating, joined 

 by a callus. Diam. 9-12 mill. 



Madeira, Porto Sancto. 



It is H. elegantula, Jan, H. saceharata, Lowe, H. twniata, Reeve 



Var. SALEBROSA, Lowe. fig. 50. 



Spire a little elevated, scabrous, suture plane, base convex, umbil- 

 icus rather small. 



Madeira, and Deserta Is. 

 Var. POROMPHALA, Lowe. Fig. 62. 



Scabrous, whorls slightly convex, umbilicus punctiforrn in the 

 middle, becoming shortly rimate. 



Ins. Deserta Australis. 

 Var PITT^E, Paiva. Figs. 60, 61. 



Perforate, subglobose, rugose, closely granular; whorls 62, the 

 last obtusely angulated, base turgid; peristome thick, whitish, sub- 

 reflected. Diam. 5 mill. 



Ins. Deserta Australis. 



