932 PROCEEDINGS OF THE MALACOLOGICAL SOCIETY. 
Section VI. Coxrranosroma, Bourguignat. 
Bourg.: Moll. Afr. équat., 1889, p. 43. 
Shell openly umbilicated, ventrose, spire convex ; transparent, 
opaline, shining, furrowed by strong lamelliform flexuous radiations. 
Aperture hollowed out, nearly circular, peristome reflected, except at 
the upper margin around the channel. 
159. Srrepraxis Leroyi, Bourguignat. 
Colpanostoma Leroy?, Bourg.: Moll. Afr. équat., 1889, p. 48, pl. 1, 
figs. 1-8; Mart., Deutsch. Ost-Afr., vol. iv (1897), p. 33. 
Hab.—Mount Nguru, between Ukamba and Ussagara. 
Section VII. TZu4yrzorra, Bourguignat. 
Bourg.: Moll. Afr, équat., 1889, p. 38. 
Shell thin, opaque, covered with a deciduous cuticle, of a chestnut- 
brown colour. Spire convex, with flexuous lamellate striations ; 
umbilicus deep, moderate, funnel-shaped. Aperture hollowed out. 
Peristome somewhat thickened, well reflected, except at the upper 
margin. 
160. Srrepraxts Jouserti, Bourguignat. 
Tayloria Jouberti, Bourg.: Moll. Afr. équat., 1889, p. 47, pl. ui, 
figs. 6-9 ; Mart., Deutsch. Ost-Afr., vol. iv (1897), p. 33. 
Hab.—Near Lake Tanganyika. 
161. Srrepraxis ventrosus, Taylor. 
? Zonites ventrosa, Taylor: Journ. Conch., vol. i (1877), p. 253, 
pl. 1, fig. 2. 
Tayloria ventrosa, Bourg.: Moll. Afr. équat., 1889, p. 39; Mart., 
Deutsch. Ost-Afr., vol. iv (1897), p. 33. 
Hab.—Zanzibar. 
162. Srrepraxis rreratus, Martens. 
Tayloria iterata, Mart.: Deutsch. Ost-Afr., vol. iv (1897), p. 33, 
with 3 figures. 
Hab.—German East Africa: Uluguru. 
Section VIII. Mrcrarreuon, Mollendorff. 
Mildff. : Ber. Senck. naturf. Ges., 1890, p. 190. 
Shell small, regular, helicoid, depressed, narrowly perforate; with 
a parietal lamella and basal tooth. 
168. Srrepraxts Borerrerrt, Mollendorff. 
Streptaxis (Micrartemon) Boettgert, Mldff.: Ber. Senck. naturf. Ges., 
1890, p. 190, pl. vii, fig. 1; Semper, Reisen, vol. viii (1898), 
p- 2, pl. i, fig. 1; Mlldff., Abhandl. naturf. Ges. Gorlitz, vol. xxii 
(1898), p. 29 (reprint, p. 4). 
Hab.—Philippine Islands: Cebu; Negros; Guimaras. 
