144 PHASIS-TRACHYCYSTIS. 



Group of H. turmalis. 

 P. TURMALIS Morelet. PL 43, figs. 53, 54. 



Shell perforated, depressed-conoid, costulate above, striatulate 

 beneath ; corneous-rufescent, hardly shining. Whorls 5, little con- 

 vex, the last compressed, obsoletely angulated. Aperture oblique, 

 compressed-lunar ; peristome simple, thin, straight, the columellar 

 margin slightly dilated at the insertion. 



Alt. 3, greater diam. 5, lesser 4* mill. (Morel.) 



Port Elizabeth, 8. Africa. 



Helix turmalis MOREL, Journ. de Conch. 1889, p. 5, t. 1, f. 1. 



This species resembles H. plebeia, H. sericea, etc. of Europe. The 

 last whorl is depressed, feebly angulated, and pierced by a very nar- 

 row but deep umbilicus. The rounded aperture is also a little 

 depressed, its margin thin, sharp, terminations separated. The 

 shell is thin, horny brownish, lusterless, very coarsely costulate 

 above, finely striate beneath. (Morel.*) 



P. INOPS Morelet. PL 43, figs. 50, 51. 



Shell imperforate, depressed turbinate, rather solid, reddish or 

 buff-horny. Spire conoidal, apex subacute; whorls 5J, the first 

 smooth, the last subdepressed, irregularly striated, the striae finer 

 beneath. Aperture obliquely lunar, margins remote, straight, the 

 columella angularly revolute above. 



Alt. 4, greater diam. 5, lesser 4 mill. (Morel.) 



Port Elizabeth, S. Africa. 



H. inops MOREL., Journ. de Conchyl. 1889, p. 6, t. 1, f. 2. 



More globular than H. turmalis, and imperforate. The columella 

 has a triangular dilation above. The shell is lusterless, yellowish 

 .on the earlier whorls, passing on the last two whorls to a dark red ; 

 engraved with relatively large, sinuous and quite regular grooves. 

 It differs from H. uitenhagensis Krauss in wanting the umbilicus, 

 etc. 



P. MINYTHODES Melvill & Ponsonby. PL 35, fig. 15. 



Shell very narrowly but profoundly umbilicated, globose- 

 depressed, smooth, little shining, horny. Whorls 4, obscurely 

 striated, the last subconvex, compressed at the sutures. Aperture 

 lunar-ovate, peristome thin, triangularly reflexed at the columellar 

 margin. Alt. 8, diam. 11 mill. (M. & P.) 



Craig ie Burn, South Africa. 



