SPECIES OF ZONITIDE FROM EQUATORIAL AFRICA, 807 
chestnut periostracum; whorls 6, regularly increasing, the 
extreme apex smooth, the second whorl sculptured only with 
slightly distant and very oblique, coarse, transverse stiie, the 
remaining whorls sculptured with fine, closely-set, transverse 
striz crossed by fine spirals, thus presenting a finely decussate 
appearance, the last whorl rather strongly carinate at the 
periphery ; base of shell polished, shining, dark brownish yellow, 
somewhat granulate and sculptured with fine, wavy, moderately 
closely-set, revolving strie; suture impressed, very narrowly 
callously margined above; umbilicus rather narrow, deep; 
columella outwardly expanded in the upper region, vertically 
descending above, then bulging obliquely inwards and very gently 
and obliquely curved below; labrum simple; aperture broadly 
and somewhat compressedly sublunate. 
Alt. 11, diam. maj. 16, diam. min. 14°75 mm. 
Aperture: alt. 7, diam. 7°75 mm. 
Hab. Larogi Hills, British East Africa. (A. Blayney Percival.) 
LEDOULXIA ELGONENSIS, sp.n. (PI. I. fig. 4.) 
Shell allied to Martensia jenynsi Pfr.*, of which it may 
ultimately prove to be a subspecies; it is, however, much more 
depressed than is that species, the spiral sculpture, both on the 
base and on the whorls, is also more developed, and the columella 
descends much more obliquely. 
Alt. 7°75, diam. maj. 13, diam. min. 11:25 mm. 
Aperture: alt. 5°75, diam. 5°75 mm. 
Hab. Mount Elgon, Uganda. (C. W. Woodhouse.) 
LEDOULXIA EUSSOENSIS, sp.n. (PI. I. fig. 2.) 
Shell rather solid, perforate, somewhat depressedly turbinate, 
cream-coloured, flecked here and there with greyish black and 
ornamented with a very narrow, interrupted, peripheral band of 
the same; whorls 6, sculptured with very closely-set, coarse, 
oblique, arcuate striz; the last whorl obtusely angled at the peri- 
phery ; base of shell marked with lines of growth and sculptured 
with irregular, wavy, revolving, scratch-like striz ; suture well 
impressed ; umbilicus narrow, “deep, slightly overhung by the 
outward expansion of the Golumella: columella descending in a 
curve; labrum simple; aperture obliquely sublunate. 
Alt. 13°75, diam. maj. 19, diam. min. 16°5 mm. 
Aperture: alt. 9, diam. 8 mm. 
Hab. Eusso Nyiro, British East Africa. (Robin Kemp.) 
LEDOULXIA JINGAENSIS, sp.n. (Pl. I. fig. 6.) 
Shell broadly turbinate, thin, straw-colour, painted with a 
narrow, supersutural, spiral band of reddish purple ; whorls 6, 
regularly i increasing, rather convex, the last acutely and callously 
carinate at the periphery ; sculptured with fine, closely-set, 
* Proc. Zool. Soc. London, 1845, p. 131. 
