32i^ Annals of the South African Miisenni. 



in general form the species described by Baily as Voluta fig id a, they 

 differ in possessing folds on the columella, in the crenulate or 

 tuberculate character of the margin in front of the suture, and in the 

 weaker spiral ribs. M. Cossmann informs me that the columellar 

 folds are sometimes obsolete in CryjJtorhytis. Since this species 

 agrees in other respects with Gryiitorliytu it may still be placed in 

 that genus. 



Bemarks. — Nine specimens have been examined. The type 

 appears to have been lost. 



Cryptorhytis, sp. 

 Plate XL., fig. 2. 

 1871. Tritonidca tricliinopolitensis, Griesbach, Q.J.G.S., xxvii., p. 62 

 {non Forbes). 

 A specimen, which is now in the Hamburg Museum, was identi- 

 fied by Griesbach as Tritonidea trichinopolitensis (Forbes)."'' It 

 appears to me to be distinct from that form, and to resemble closely 

 Cryptorhytis rigida, but differs in its less elongate shell, in the more 

 extensive depression on the posterior part of the whorls, in the fewer 

 and broader spiral ribs and in the less prominent transverse folds. 



Family TURBINELLID^. 



Genus PYEOPSIS, Conrad. 



Pyropsis africana, sp. nov. 



Plate XXXVIIL, fig. 17. Plate XXXIX., fig. 1. 



Description. — Shell large, thick, globose, consisting of four or five 

 whorls. Spire very short, with a deep suture between it and the 

 last whorl. 



Last whorl very large, ventricose, carinate. The part of the 

 whorl behind the carina is concave, and rises just in front of 

 the suture to form a prominent, sharp ridge, which terminates in the 

 posterior canal, where it projects beyond the level of the apex of 

 the spire. Between the ridge and the spire there is a deep channel. 

 The part of the whorl in front of the carina is convex and gently 

 rounded. 



The last whorl is ornamented with numerous, rounded, spiral ribs, 

 which are more or less nodular. On the carina the nodular character 

 becomes more prominent. The ribs are not of uniform size, and are 



* Trans. Geol. Soc, ser. 2, vol. vii. (1846), p. 127, pi. xv., fig. 7. Stoliczka, Cret. 

 Fauna S. India, vol. ii. (18G7), p. 126, pi. xi., tig. 4. 



