260 On a new Species and Subspecies of Ennea. 



Ennea {Giilelhi) cadinani, sp. ii. 



Sliell cylindrical, yellowish white, polished, shining; 

 whorls 6, the first three reguhirly incroasino;, *tlie last three 

 increasinj^ in length but not in bieadth ; suture rather slightly 

 iinpressf'd, narrowly margined below, the margin minutely 

 crennlated ; perforation narrow, deep ; labrum thick, white, 

 reflexed, the margins joined by an opaque, white, parietal 

 callus ; aperture irregularly subquadrate, armed with a coarse, 

 erect, vertical, parietal lamella which is slightly twisted 



Ennea [Gulella) cadmani, x 4. 



below, a protuberance on the upper portion o£ tiie outer 

 lip which partly fills the space between it and the parietal 

 lamella, while below this occurs a coarse downwardly curved 

 lamella ; at the base of the aperture and very interiorly 

 situate is an oblique nodular denticle, while in addition, 

 projecting from the broad columella margin, occurs a hori- 

 zoital lamella-like tooth. 



Alt. 5"75, diam. maj. 2 mm. 



Aperture : alt. 1*25, diam. 1 mm. 



Hah. Idah, at an altitude of about 1300 feet, Zaria Pro- 

 vince, Northern Nigeria (//. Cadinan). 



Ennea [Paucidentata) monodon zariaensis, subsp. n. 



Shell differing from the typical form from Gaboon* in its 

 larger sizt>, much more cylindrical shape, and more oblique 

 columella lip. 



Alt. 10, diam. maj. 4 mm. 



Aperture: alt. 2*75, diam. 1*5 diam. 



Hah. Idah, at an altitude of about 11^00 £eet, Zaria Pro- 

 vince, Northern Nigeria (//. Cadman). 



* J. de Concliyliol. 1873, p. 330. 



