PHASIS-TRACHYCYSTIS. 143 



P. ACTINOTRICHA Melvill & Ponsonby. PL 35, fig. 14. 



Shell covered but profoundly umbilicated, above planate- 

 depressed ; pellucid, horny, thin. Apex turbinate. Whorls 5, 

 impressed at the sutures, a little convex, covered throughout with a 

 horny epidermis, striate-lirate. The last whorl begirt by 4 lines of 

 bristles, those at and below the periphery long, on the base shorter, 

 and shortest around the umbilicus. Aperture semi-l^inar, per- 

 istome thin, columella angulated below, triangularly reflexed at the 

 umbilicus. Alt. 5'5, diarn. 9 mill. ( M. & P.) 



Maritzburg, South Africa. 



Helix (Pella') actinotricha M. & P., Ann. Mag. N. H. (6), ix, 

 p. 238, t. 13, f. 5 (Sept., 1892.) 



A most attractive little species, perhaps not quite adult; of a 

 delicate horny substance and color, very flattened at the periphery 

 and above, and with the apex of the last whorl somewhat turbinate. 

 The whole shell covered with a pale horny epidermis, everywhere 

 striate-lirate. Around the periphery most of these strise bear long 

 bristles or setae which extend around the shell ; just below also a 

 second series occurs, and further toward the base are two more series, 

 one with very short setre about midway and the other nearer the 

 umbilicus ; in this the bristles are shorter still. We know no species 

 at all nearly resembling this. Two specimens. (J/. & P.) 



P. TRICHOSTEIROMA Melvill & Ponsonby. PI. 35, fig. 3. 



Shell very narrowly but profoundly umbilicate, corneous brown, a 

 little convex, nearly smooth ; longitudinally obliquely delicately 

 striate, and all over decussated by very minute spiral lirulse. 

 Whorls 5, the last carinated in the middle, the carina furnished with 

 short hairs. Aperture lunar-ovate; peristome simple, reflexed at 

 the columellar margin. Alt. 5J, diam. 1} mill. (M. & P.) 



Port Elizabeth, S. Africa. 



Helix (Pella) trichosteiroma M. & P., Ann. Mag. N. H. (6), ix, 

 p. 84, t. 4, f. 9. 



Judging from the description of Helix petrobia Benson recorded 

 from High Constantia, Cape of Good Hope, but of which we have 

 not been able to examine the type, the species under discussion 

 would seem to differ chiefly in the acutely angled keel, fringed 

 with regular, short epidermal hairs, also in the form being more 

 convex, color dull brown, with no fulvous tinge, and other minor 

 distinctions. (M. & P.) 



