1927] Pilsbry-Bequaert, The Aquatic Mollusks of the Belgian Congo 143 
Physopsis abyssinica (E. v. Martens) Jickrnt, 1874, Nova Acta Ac. Nat. Cur. 
Dresden, XX XVII, 1, p. 210, Pl. vu, figs. 15-16= Puasa (Physopsis) abyssinica 
_E. v. Martens, 1866, NMalskon, Blatter, XIII, p. 100. Physopsis eximia Bour- 
GUIGNAT, 1879, ‘ Descript. Moll. Egypte,’ p. 13. Southern Abyssinia, 
Physopsis africana Krauss. See p. 144. 
Physopsis africana globosa (Morelet). See p. 146. 
Physopsis africana var. ovoidea (Bourguignat). See p. 146. 
Physopsis africana var. stanleyana (Bourguignat). See p. 147. | 
Physopsis choziensis Preston, 1918, Rev. Zool. Afric., III, 1, p. 55, Pl. v, fig. 12. 
Chozi River, a tributary of the Charabed River, Notthenarert Rhodesia. Dupuis 
and Putzeys [1923, Ann. Soc. Zool. Belgique, aoe (1922), p. 75] refer this as a variety 
to P. africana and claim to have specimens from Leopoldville. 
Physopsis didiert A. T. pp RoCHEBRUNE AND GERMAIN, 1904, Bull. Mus. Hist. 
Nat. Paris, p. 142; 1904, Mém. Soc. Zool. France, XVII, p. 10, Pl. 1, figs. 6 and 7. 
Dufile on the White Nile, Anglo-Egyptian Sudan. Dupuis and Putzeys [1923, Ann. 
Soc. Zool. Belgique, LITI, (1922), p. 75] refer this as a variety to P. africana and claim 
to have specimens ‘rom Elisabethville and Kasongo. 
In arecent paper, M. Leriche! refers to Physopsis africana var. didieri specimens 
of a fossil snail from a silicified limestone of the valley of the Kampemba, an affluent 
of the Lufukwe River, Katanga. The published figures (Pl. v, figs. 1 la-c, and 5) 
appear to represent a species of Bulinus rather than of Physopsis. The alluvial 
deposit in which they cccur contains also remains of two species of Lymnza and one 
species of Planorbis, and odgones of Characee (Alge). Itis found at the foot of the 
eastern escarpment of the Kundelungu Plateau, to the southwest of Lake Moero, 
and is probably of Pleistocene or possibly Upper Pliocene age. 
Physopsis exserta (Preston) = Physa exserta PRESTON, 1913, Rev. Zool. Afric., IIT, 
1, p. 56, Pl. v, fig. 9. Lake Baringo, Kenya Colony. This appears from the figure 
to possess a feebly truncate columella and is therefore better placed in Physopsis. 
Physopsis karongana (EK. A. Smith) = Physa karongana E. A. Smriru, 1898, Proce. 
Zool. Soc. London, p. 640, Pl. trx, fig. 15. Karonga on Lake Nyasa. Physopsis 
karongensis Dupuis AND PutzEys, 1928, Ann. Soc. Zool. Belgique, LIII, (1922), p. 75, 
as a synonym of P. africana globosa (Morelet). 
Physopsis menelikti BouRGUIGNAT, 1885, ‘Moll. Choa,’ p. 25. Hauash River, 
Abyssinia. 
Physopsis nasuta E. v. Martens, 1879, Sitz. Ber. Ges. Naturf. Fr. Berlin, p. 
102; 1897, ‘Deutsch Ost Afr., IV, Beschalte Weichth.,’ p. ie Pl. vi, fig. 10 = Physop- 
sis bloyeti BouRGUIGNAT, 1889, ‘Moll. Afrique Equator.,’ p. 160. Bagamoyo, Tan- 
ganyika Territory (type ientie of nasuta); near Kondoa, Tanganyika poaary 
(type locality of bloyetz). 
Physopsis natalensis (Kister) = Physa natalensis ‘‘Krauss’? Ktster, 1841-43, 
in Martini and Chemnitz, ‘Syst. Conch. Cab., I, 17, Limneziden,’ p. 8, Pl. 1, figs. 12- 
14. Krauss, 1848, ‘Siidafrik. Mollusk.,’ p. 84, Pl. v, fig. 10. Physa natalica Bour- 
' GUIGNAT, 1883, Ann. Sc. Nat. Zool., (6) XV, p. 98. Physa zuluensis MELVILL AND 
eee 1903, Ann. Mag. Nat. ie. (7) XII, p. 606, Pl.xxxn, fig.4. Umgeni 
River, Natal (type-locality of natalensis) ; iscein: Zululand (type foeality of zuluensis). 
iLeriche, M. 1925. ‘Les fossiles du calcaire lacustre observé récemment sur le plateau du Kunde- 
lungu (Katanga):’ Rev. Zool. Afric., XIII, pp. 150-155, PI. v. 
