1927] + Pilsbry-Bequaert, The Aquatic Mollusks of the Belgian Congo 151 
Shell with radially punctate apex: more or less elevated, patelliform or approach- 
ing the capuliform shape of Pseudancylus. 
“Radula with a bicuspid central tooth, the base wider below; laterals with three 
major cusps, the endocone and mesocone more or less united, and frequently entirely © 
concrescent; additional small cusps are frequently developed on either side of the 
ectocone; the laterals gradually pass into the marginals by a progressive splitting up 
of the cusps, until in the perfect marginals the cusps are all substantially of the same 
size and practically the same as those of Ferrissia”’ (Walker). ? 
Distribution: South Africa, north to British East Africa and the 
eastern Congo drainage. 
The following Ethiopian species have been described: 
Burnupia alta Pilsbry and Bequaert. See p. 153. 
Burnupia brunnea B. WaLKER, 1924, ‘Ancylide of South Ainica,” p, 38, fie. 21: 
Pl. 1, fig. 4. Zoutpansberg, Transvaal. Elsewhere in Transvaal and Natal. 
Burnupia caffer (Krauss). See p. 152. 
Burnupia capensis B. WaLKER, 1924, ‘Ancylide of South Alrigal’ p48; .aP Tea, 
fig. 7 = Ancylus (Burnupia) caffer var. capensis B. WALKER, 1912, The N autilus, XXV, 
p. 141. Lakeside, Cape Peninsula, Cape Colony. Elsewhere in Cape Colony. 
Burnupia capensis var. natalensis B. WaLKER, 1924, ‘Ancylids of South Africa,’ 
p. 45, fig. 23 (on p. 46); Pl. 1, fig. 8. Umhlatuzani River, Malvern, Natal. Elsewhere 
in Natal. 
Burnupia crassistriata (Preston) = Ancylus crassistriatus PRESTON, 1911, Ann. 
Mag. Nat. Hist., (8) VII, p. 475, Pl. x11, fig. 35. Between Rumruti and Mt. Kenia, 
Kenia Colony. 
Burnupia edwardiana Pilsbry and Bequaert. See p. 154. 
Burnupia farquhari B. WALKER, 1924, ‘Ancylide of South Africa,’ p. 41, fig. 22 
(on p. 42); Pl. 1, fig. 6=Ancylus (Burnupia) caffer var. farquhari B. WALKER, 1912, 
The Nautilus, XXV, p. 140. York, East Griqualand. Elsewhere in Cape Colony. 
| Burnupia gordonensis (Melvill and Ponsonby) B. Wauxur, 1924, ‘Ancylide of 
South Africa,’ p. 34, fig. 20 (on p. 36); Pl. 1, fig. 3=Ancylus (Ferrissia) gordonensis 
MELVILL AND PonsonBy, 1903, Ann. Mag. Nat. Hist., (7) XII, p. 606, Pl. xxxz, 
fig. 2. Gordon Falls, Natal. Elsewhere in Natal and Cape Colony. 
Burnupia kempt. (Preston) =Ancylus kempi: Preston, 1912, Proc. Zodl. Soe. 
London, IT, p. 190, Pl. xxx1, fig. 2 and 2a. Kigezi, southwestern Uganda, 5,000 ft. 
Burnupia kimiloloensis Pilsbry and Bequaert. See p. 153. | 
Burnupia mootensis B. WALKER, 1924, ‘Ancylide of South Africa,’ p. 47, fig. 24; 
Pl. 1, fig. 9= Ancylus (Burnupia) mooiensis B. WaLKER, 1912, The Nautilus, XXV, p. 
141. Mooi River, Potchefstroom, Transvaal. 
Burnupia mooiensis var. dubiosa B. WALKER, 1924, ‘Ancylide of South Africa,’ 
p. 49, Pl. 1, fig. 10=Ancylus (Burnupia) mooiensis var. dubiosus B. WALKER, 1912, 
The Nautilus, XXV, p. 142. Pienaars Poort near Pretoria, Transvaal. Elsewhere in 
Transvaal, | | 
Burnupia nana B. Watxksr, 1924, ‘Ancylide of South Africa,’ p. 39, PI. I, 
fig. 5=Ancylus (Burnupia) caffer var. nanus B. WALKER, 1912, The Nautilus, XXV, 
p. 139. Karkloof Stream, Natal. Elsewhere in Natal and Transvaal. 
Burnupia obliqua (Kister)=Ancylus obliquus “Krauss” Ktsrer,” 1853, in 
Martini and Chemnitz, ‘Syst. Conch. Cab., I, 6, Ancylinen,’ Pl. 1, figs. 18-20 (with- 
