1927] Pilsbry-Bequaert, The Aquatic Mollusks of the Belgian Congo 107 
Planorbis boissyi Potinz anp Micuavp, 1838, ‘Galerie Moll. Douai,’ I, p. 208, 
Pl. xx1, figs,4-6. Nile River, Egypt. According to Ancey (1905, Journ. de Conchyl., 
LIII, p. 321) and’Pallary (1921, Proc. Malacol. Soc. London, XIV, p. 146) , P. sub- 
salinarum Innés (1884, Bull. Soc. Malacol. France, I, p. 331; type locality: Gharbiya 
Province, Lower Egypt) isa synonym. Potiez and Michaud’s name, however, is not 
preoccupied by Planorbis boissyi Deshayes, as stated by Pallary, since Deshayes 
name dates not from 1837 but from 1864 (‘Deser. Anim. sans Vertébres Bass. Paris,’ 
IT, p. 741, Pl. xiv, figs. 20-21). This species is said to extend to Eritrea. 
Planorbis bozasi A. T. DE RocHEBRUNE AND Germain, 1904, Bull. Mus. Hist. 
Nat. Paris, p. 141; 1904, Mém. Soe. Zool. France, III, p. 9, Pl. 1, figs. 2-4. Lake 
Challa, Ualamo Country, Abyssinia. — 
Planorbis bridouxianus Bourguignat. See p. 119. 
Planorbis bridouxianus var. foai Germain. See p. 119. 
Planorbis bridouxianus var. major Germain=Planorbis bridowxt var. major 
GERMAIN, 1905, Bull. Mus. Hist. Nat. Paris, p. 253. Kuka, Lake Chad (dead speci- 
mens). 
Planorbis bridouxianus var. occidentalis Germain=Planorbis bridouxi var. 
occidentalis GERMAIN, 1904, Bull. Mus. Hist. Nat. Paris, pp. 349 and 351. Lake Chad. 
Planorbis cecchit PoLLONERA, 1887, Boll. Mus. Zool. Anat. Comp. Torino, II, 
No. 34, p. [2]; 1888, Bull. Soc. Malacol. Italiana, XIII, p. 79, Pl. m1, figs. 11-13. 
Cimbisi near Debra-Braham, Choa, Eritrea. 
Planorbis choanomphalus E. v. Martens. See p.119. 
Planorbis choanomphalus var. basisulcatus E. v. Martens. See p. 120. 
Planorbis choanomphalus var. victorve (EX. A. Smith) E. v. Martens, 1897, 
‘Deutsch Ost Afr., IV, Beschalte Weichth.,’ p. 149=Planorbis victorie E. A: 
Smiru, 1892, Ann. Mag. Nat. Hist., (6) X, p. 383. Northern shore of Lake Victoria. 
Planorbis hermanni OQ. Barrcer, 1910, Abh. Senckenberg. Naturf. Ges., XXXII, 
p. 452, Pl. xxviut, figs. 18a-c. Okaputa Pan, Damaraland. 
Planorbis lavigerianus Bourguignat. See p. 123. 
Planorbis moncett Bourguignat. See p. 128. 
Planorbis nairobensis DAUTZENBERG, 1908, Journ. de Conchyl., LVI, p. 16, PI. 
ul, figs. 1-3. Nairobi, Kenya Colony. J. THreie (1911, ‘Wiss. Ergebn. D. Z. Afr. 
Exp. (1907-08),’ III, p. 209) refers doubtfully to this species specimens from Lake: 
Luhondo in Ruanda (Schuhotz Coll.). 
Planorbis peteli Jickeui, 1874, Nova Acta Ac. Nat. Cur. Dresden, XX XVII, 
1, p. 212, Pl. vit ee 1 9a-e Ne. 
Planorbis pfeifferi Krauss, 1848, ‘Siidafrik. Mollusk.,’ p. 83, Pl. v, fig. 7; Um- 
geni River, Natal= Planorbis bowkert MELVILL AND Ponsonby, 18938, Ann. Mag. Nat. 
Hist., (6) XII, p. 111, Pl. 1m, fig. 19; Northern Transvaal. This species has been 
transferred to Planorbula by Connolly, 1925. 
Planorbis ruppellii DunKER, 1848, Proc. Zo6l. Soc. London, p. 42. JicKExt, 
1874, Nova Acta Ac. Nat. Cur. Dresden, XX XVII, 1, p. 211, Pl. vu1, figs. 17a-c and 
18a-c= Planorbis herbint BourauienatT, 18838, Ann. Sc. Nat. Zool., (6) XV, pp. 101 
and 127. Abyssinia. - | 
Planorbis salinarum MoreEteEt, 1868, ‘Voy. Welwitsch, Moll. Terr. Fluv.,’ p. 85, 
Pl. v, fig. 4. Near Dungo, Pungo Andongo district, Angola. 
Planorbis smitht (Preston). See p. 120. 
Planorbis stanleyi E. A. Smith. See p. 124. 
