NON-MARINE MOLLUSCS OF SURINAM. 27 
Environs of Paramaribo. van Heurn, 1911. 
Since the lirae on the whorls are rather distantly placed, 
and alternatively higher and lower, I feel obliged to range 
the specimens from Paramaribo under the variety, recorded 
from Trinidad. 
* 66. AMPULLARIA LINEATA Spix. 
Helix lineata, Spix, Testac. fluviat. Brasil., 1827, Pl. 5, f. 2. 
Ampullaria lineata Spix, Philippi, Syst. Conch. Cab., Ed. 
nov., Band I, Abt. 20, 1851, p. 14, T. 2, f. 5, 6. 
Ampullaria chemnitzii, Philippi, Syst. Conch. Cab., Ed. nov., 
Band. TA bt. 20,1851, ps 39, T.10; £ 5. 
Ampullaria lineata Spix, Sowerby, Proc. Mal. Soc. VIII, 1909, 
p. 354. 
Plantation Catharina Sophia (near Post Groningen). ? 
Coast-region of Surinam. ten Kate. 
Environs of Paramaribo. van Cappelle, 1900. 
Surinam. Bolten, 1910. 
Environs of Paramaribo. van Heurn, 1911. 
Post Groningen. van Heurn, 1911. 
Drouet, 1859, pp. 42, 80. Surinam. 
Martens, 1873, p. 218. Surinam ? 
This species appears to be very common in the neigh- 
bourhood of Paramaribo. 
? 67. AMPULLARIA CANALICULATA Lam. 
Ampullaria canaliculata, Lamarck, Hist. nat., 1819, Vol. VI, 
p. 178. 
Philippi, Syst. Conch. Cab., Ed. nov., Band I, Abt. 20, 
1851, p. 66. 
Sowerby, Proc. Mal. Soc. VIII, 1909, pp. 346, 363. 
Martin, 1888, p. 68. Surinam River. 
There is much confusion with regard to this species. 
Many specimens of other species having done duty for it in 
various collections, as stated by Mr. Sowerby, and also in 
the Leyden Museum some specimens of A. lineata having 
been labelled A. canaliculata, I feel much inclined to con- 
sider the specimens collected by Prof. Martin, as belonging 
to the preceding species. 
Notes from the Leyden Museum, Vol. XXXVI. 
