Reference List of South African Non-marine Mollusca. 281 
1883 Hupera parasitica, Parr., Bgt., Ann. Sci. nat. Paris, xv. p. 133. N. 
. »  jickelii, Bgt., ibid. p. 134. D. 
1892 Limosina parasitica, Parr., Smith, A.M.N.H. x. p. 126. N. 
1897 Hupera is Desh., von Mts., D.-O.-Afr. p. 261. N. 
1909 fs Parr., Pallary, Mém. Inst. Egypt. vi, l. 
p. 75. pl. 4, f. 18-20. F. 
Type of ferruginewm in Stuttgart Museum ; parasiticwm in British 
Museum ; jickelii in Geneva Museum. 
Hab, Carr or Goop Horr. Knysna River (ferruginewm, Krauss). 
RuopesiA. Victoria Falls (Connolly). 
Jickeli (1874) placed examples of H. parasitica, which he collected 
in Abyssinia, in the synonymy of ferruginea, Krs., but the weight 
of more recent opinion, which in this case appears to me to be 
correct, is against these species being identical. References to both, 
as well as to jickelii, Bgt., are given above for purposes of comparison. 
Parasitica is recorded from East and North-East Africa; jzckeliz 
from Abyssinia. Until more is known of Krauss’ species, I prefer 
to leave it in its original Genus, rather than in Hupera, Bgt., which 
was constituted for two Brazilian shells. Limosina, Cless., 1872, 
is preoccupied by Limosina, Macq., in Diptera, 1835. 
Genus PISIDIUM, C. Pfeiffer, 1821. 
(Syst. Anordn. u. Beschr. deutscher L.-und W -Schnecken, pp. 17, 123.) 
(= Pisum, Gray, 1847, and Fluminina, Clessin, 1873.) 
Type of Genus, P. obliquwm (Lam.). 
595. PistipiIuM LANGLEYANUM, Melv. & Pons. 
1891 Pisidium langleyanum, M. & P., A.M.N.H. viii. p. 237. D. 
1892 x 33 a ix) p: 94plosi i. i 
Type in British Museum. 
Hab. Care or Goop Horr. Port Elizabeth (Langley). 
596. PistpIum ovAmpicum, Ancey. 
1890 Pisidiwm ovampicum, Ancey, Bull. Soc. Mal. Fr. vii. p. 162. D. 
MOTO P05, c.f. langleyanum, M. & P., Bttg., Abh. Senckenb. 
Naturf. Ges. Frankfurt, xxxii. p. 455. pl. 28,f.19. DF’. 
Type—whi ? 
Hab. OvamMpoLAND. Ovambonde (Andersson and Chapman). 
British BrcHUANALAND. Witkop (?langleyanum,  subfossil, 
Schultze). 
It appears probable, on geographical grounds, that Bottger’s note 
may refer to P. ovampicum, which he seems to have overlooked 
