166 



TROCEEDINGS OF THE MALACOLOGICAL SOCIETY. 



1 1 . Ennea. (Ebentulina) obesa, Taylor. 



Buliminus obesa (Gibbons), Taylor, Quart. Joum. Conch, vol. i. p. 255, 



pi. ii. fig. 3 (1877). 

 Unnea obesa (Gibbons), Smith, P.Z.S , 1881, p. 281. 

 £nnea zangucbarica, Morulct, Jouru. de Conch. 1889, p. 10, pi. i. 



figs. 1-la. 

 Ennea hulimiformis, Grandidier, Bull. Soc. Mai. France, vol. iv. p. 188 



(1887). 

 jEdentulina Grandidieri, Bourguignat, Moll. Afrique equator, p. 142 



(1889). 

 ITuh. — Bawri Island, Zanzibar (Gibbons); near Lake Nyassa and 

 between it and Dar es Salaam (Smith) ; Usagara (Grandidier and 

 Bourguignat) ; Witu and Mangea (Gregory). 



After careful consideration I have failed to discover any real specific 

 differences in the above so-called species. 



12. Cyclostoma anceps. Martens. 



Monatsb. Akad. Wissensch. Berlin, 1878, p. 288, pi. i. fig. 4. 

 Ilab. — Sabaki Valley, east of Makangeni and Kurawa, Kilifi Biver 

 (Gregory) ; Taita (Martens). 



Fig. 



1. Strepfaxifs Kibweziensts. 

 3, Vitrina Baringoensis. 



Fig. 



Zi»gis Gregorii. 

 Limnaa Elmeteitmisis. 



13. Cyclostoma Letoxjknefxi (Bourguignat). 

 Rochehrunia Letourneuxi, Bourg. Bull. Soc. Mai. France, vol. iv. 

 p. 270 (1887). 



Hah. — Tvau, near Witu. 



This species has not yet been figured, and consequently I am not 

 quite sure of the identification of the specimen from Kau with it. 

 Similar specimens collected at Zanzibar were presented to the British. 

 Museum by Mr. A. E. Craven. Tliey differ from C. zanguebaricum, 

 Petit (= C. parvispira, Pfr.), in being spirally ridged, in having a 

 longer spire, a smaller body-whorl, and only the one colour-band just 

 below the periphery. Bourguignat's specimen (possibly somewhat 

 young) was 10 mm. in height and width. The specimens in the 

 Museum exceed these dimensions by about 2 mm. C. zangueharicnm, 

 as figured by Pfeiffer,' appears to be quite distinct from Petit's species 

 (Joum. de Conch, vol. i. pi. iii. fig. 5) and bears a considerable 

 resemblance to the present form. 



' Conch. Cab. Cyclostomacea, pi. xxxix. fi{js. 24, 25. 



