SPECIES OF ZONITIDH FROM EQUATORIAL AFRICA, 789 
sculptured with spiral punctate lines, the last obsoletely, obliquely, 
arcuately, transversely plicate; suture impressed, margined above, 
the margin being of a pinkish colour; columella margin almost 
vertically descending above, gently curved below ; labrum simple, 
projecting in front, receding considerably below and a. little 
above ; aperture large, wide, subovate. 
Alt. 9°5, diam. maj. 13°5, diam. min. 9°75 mm, 
Aperture: alt. 7, diam. 8 mm. 
Hab. Lake Mutanda, 8.W. Uganda. (Robin Kemp.) 
AFRICARION SPATIOSA, sp. n. (PI. I. fig. 17.) 
Shell oblong, depressed, thin, nearly membranaceous, straw- 
colour, polished, shining; whorls 3, the first two very small and 
sculptured with somewhat distant, punctate, spiral strie, the last 
very large,and marked only with radiate, wrinkle-like plications ; 
suture lightly impressed, callously margined below ; base of shell 
inflated ; columella excavated ; aperture ovate, very wide, and 
broad. 
Alt. 7°5, diam. maj. 11°75, diam. min. 8 mm. 
Aperture: alt. 7°25, diam. 9°25 mm. 
Hab. Burunga, Mount Mikeno, Belgian Congo, at an altitude 
of 6000 feet. (Robin Kemp.) 
AFRICARION KAGAMBAHENSTS, sp. n. (PI. IT. fig. 18.) 
Shell differing from 4. spatiosa Preston in its more ovate form, 
in the greater elevation of the spire, in its broader and much 
more convex base, and in the shape of the aperture, which is much 
narrower and higher in proportion to its breadth; moreover, the 
punctate spirals on the earlier whorls are much finer and more 
closely set than is the case with A. spatiosa. 
Alt. 8 (nearly), diam. maj. 11, diam. min. 8 mm. 
Aperture: alt. 7°75, diam. 8°25 mm. 
Hab. Kagambah, 8.W. Uganda. (Robin Kemp.) 
AFRICARION TENEPROSA, sp.n. (PI. II. fig. 19.) 
Shell subelliptical, thin, almost membranaceous, dark reddish 
brown, polished, shining; whorls 3, rapidly increasing, the last 
large, sculptured with transverse growth-lines ; suture impressed, 
margined below, the margin being of a darker colour than the 
remainder of the shell ; columella margin descending obliquely, 
obtusely angled and excavated below ; Tabr um simple, projecting 
in front, receding above and below; aperture ovate. 
Alt. 7, diam. maj. 10°25, diam. min. 9°5 mm. 
Aperture: alt. 6, diam. 8 mm. 
Hab. Burunga, Mount Mikeno, Belgian Congo, at an altitude 
of 6000 feet. (Robin Kemp.) 
GUDEELLA ARANEA, Ssp.n. (PI. IIT. fig. 20.) 
Shell somewhat depressedly turbinate, yellowish brown ; 
whorls 5, regularly increasing, the last subangular just above the 
