140 Bulletin American Museum of Natural History [Vol. LITI 
Pyrgobullinus Patuary, 1923, Archives Inst. Pasteur Afr. du Nord, III, p. 31. 
Emendation of Pyrgophysa. | 
Shell narrowly oval and slender, turreted, sometimes scalariform; the early 
whorls frequently carinate and flattened near the suture. 
There is no clear-cut division between the two subgenera of Bulonus, 
since certain forms, such as B. canescens (Morelet), can equally well be 
placed in either of them. 7 
Most of the species listed below are by certain authors regarded as 
mere synonyms, neanic stages, or variations of one extremely variable 
species. But, as in the case of Bulznus, proper, we do not attempt a full 
synonymy. . 
Bulinus (Pyrgophysa) apiculatus (Morelet) = Physa apiculata MorELET, 1868, 
‘Voy. Welwitsch, Moll. Terr. Fluv.,’ p. 90, Pl. vit, fig..38. Loanda district (on the 
road between Camama and Calumbo), Angola. : 
Bulinus (Pyrgophysa) beccari (Paladilhe)=Physa beccarii PaLADILHE, 1872, 
Ann. Mus. Civ. Genova, ITI, p. 28, Pl. 1, figs. 7-8. Aden, southern Arabia. 
Bulinus (Pyrgophysa) capillaceus (Morelet) = Physa capillacea MorRELET, 1868, 
‘Voy. Welwitsch, Moll. Terr. Fluv.,’ p. 89, Pl. vii, fig. 1. District of Libongo, and 
Lake of Quifangondo near Bengo, Angola. 
Bulinus (Pyrgophysa) canescens (Morelet) =Physa canescens MoRELET, 1868, 
‘Voy. Welwitsch, Moll. Terr. Fluv.,’ p. 90, Pl. rx, fig. 3. Swamps of the Bengo 
River and of Quicuje, Angola. ees neh 
Bulinus (Pyrgophysa) clavulatus (Morelet)=Physa clavulata More.et, 1868, 
‘Voy. Welwitsch, Moll. Terr. Fluv.,’ p. 93, Pl. tx, fig.6. Swamps of the Dande River, 
near Bombo, Angola. 
| Bulinus (Pyrgophysa) dautzenbergi (Germain) = Physa (Pyrgophysa) dautzenbergi 
Germain, 1905, Bull. Mus. Hist. Nat. Paris, p. 486; 1908, in A. Chevalier, ‘L’ Afrique 
Centrale Frangaise,’ p. 501, Pl. v, fig. 7. Lake Chad. 
Bulinus (Pyrgophysa) fischerianus (Bourguignat) = Physa fischeriana Bourcut- 
GNAT, 1856, Rev. Mag. Zool., (2) VIII, p. 18, Pl. 11, figs. 1-3; 1856, ‘Aménités Mala- 
cologiques,’ I, pp. 146 and 179, Pl. x1, figs. 1-3. Physa fischeri A. T. pz RocHeBRUNE 
AND GERMAIN, 1904, Mém. Soc. Zool. France, XVII, p. 11. Abyssinia. 
Bulinus (Pyrgophysa) forskalii (Ehrenberg). E. v. Martens (1866, Malakoz. 
Blatter, XIII, p. 100) has listed a var. elatior, from southern Abyssinia, which does 
not seem to have been described. See p. 142. 
Bulinus forskalii var. pulchellus (Pallary) = Bullinus forskalt var. pulchella 
Pauuary, 1924, Mém. Inst. d’Egypte, VII, 1, p. 25. Alexandria, Lower Egypt. 
Bulinus (Pyrgophysa) gradatus (Melvill and Ponsonby) = Physa gradata MELVILL 
AND Ponsonby, 1898, Ann. Mag. Nat. Hist., (7) II, p. 129, Pl. vil, fig. 8. Brickfields 
near Grahamstown, Cape Colony. , 
Bulinus (Pyrgophysa) lamellosus (Roth). See p. 142. : 
Bulinus (? Pyrgophysa) ludovicianus (Mittre) =Physa ludoviciana Mrrrre, 
1841, Rev. Zoolog. Soc. Cuviér., p. 68. Saint Louis, Senegambia. The generic refer- 
ence of this species is doubtful; it possibly is a Physopsis. Certain authors synony- 
mize it with Bulinus senegalensis, but the description does not fit that species. 
Bulinus (Pyrgophysa) moreleti (A. Nobre) = Physa moreleti A. Nopre, 1905, 
Annaes Sc. Naturaes, Porto, IX, p. 15 (of separate), Pl. 1, figs. 29-30. Luinha, Angola. 
