GASTROPODA. 45 



MONODONTA (PUIOTROCHUS) OBSCURA, Wood, Tryon, 



vol. xi. p. 257, pi. 61, fig. 33. Natal (Crawford). 



CLANCULUS CARINATUS, A. Adams, Proc. Zool. Soc. 1851, 

 p. 162 ; Tryon, vol. xi. pi. 14, fig. 24-26. Port Elizabeth. 



CLANCULUS PUNICEUS, Philippi, Conch. Cab. p. 73, pi. 

 14, fig. 2. Natal coast (Krauss). Distribution: Ked Sea, 

 Zanzibar, Senegal, &c. I have not met with this species 

 among South African shells ; it is nearly allied to, if not a 

 mere variety of C. Pharaonis. 



CLANCULUS LACEYI, Soiverby, pi. 11, fig. 44; Journal of 

 Conch. 1889, vol. vi. p. 11, pi. "l, fig. 16. Port Elizabeth, 



CLANCULUS WALTON^E, Sowerby, n. sp., pi. 2, fig. 45. 

 -Testa breviter conica, fuscescens, maculis minutis nigro- 

 fuscis irregulariter aspersa ; anfractus 5i, convexiusculi, 

 liris spiralibus granulatis (in anfr. penult. 4, lira minima 

 interveniente) ornati, sutura caualiculata sejuncti ; anfractus 

 ultimus obtuse angulatus ; basis leviter convexa, liris granu- 

 latis circ. 9 ornata; umbilicus profunde excavatus; columella 

 obliqua, supra et infra angulata; apertura leviter obliqua, 

 subquadrata, fauce iridescens. 



l)iam. 11 ; alt. 8i millim. 



Hab. Port Elizabeth (Crawford). 



Somewhat resembling C. carinatus and C. Laceyi, with 

 the ridges crisply granulated. In form it is more elevated 

 and inflated than 0. carinatus. 



CYCLOSTREMA ROTUNDATA, Soiverby, n. sp., pi. 2, fig. 47. 

 Testa orbiculata, anguste umbilicata, albida, subpellucida ; 

 spira obtusa, sutura canaliculata ; anfractus 4, convexi, 

 spiraliter striati ; anfractus ultimus rotuude convexus : aper- 

 tura leviter obliqua, subcircularis. 



Diam. 2^ ; alt. H millim. 



Hab. Po'rt Elizabeth. 



A little white shell, of which the true generic position 

 is uncertain. The species varies a good deal in form, and 

 in the width of the umbilicus, which in some specimens is 

 nearly closed. 



CYCLOSTREMA INFLATA, Soiuerby, n. sp., pi. 11, fig. 48.- 

 Testa inflata, anguste umbilicata, tenuis, alba; spira parva, 

 acutiuscula, gradata; sutura profunda ; anfractus 4, priiru 



