NON-MARINE MOLLUSCS OF SURINAM. 9 
Pleurodonte lucerna Mill., Pilsbry, Man. of Conch., 2. ser., 
Vol. IX, 1894, p. 89. 
Surinam. Cab. Dalen. 
?* 15, PLEURODONTE CAROCOLLA L. 
Helix carocolla Linné, Syst. Nat. X, 1758, p. 169. 
Pilsbry, Man. of Conch., 2. ser., Vol. V, 1889, p. 120, 
Pl. 2158.4; 2, Se PL 2A tS. : 
Pleurodonte caracolla L., Pilsbry, Man. of Conch., 2. ser, 
Vol. IX, 1894, p. 93. 
Surinam ? Cab. Raye. 
?* 16. PLEURODONTE SARCOCHEILA Mörch. 
Helix sarcocheila, Mörch, Cat. Kierulf, 1850, p. 28, T. 4, f. 1. 
Pilsbry, Man. of Conch., 2. ser., Vol. V, 1889, p. 122, 
Pl. 56, f. 1, 2. 
Pleurodonte sarcocheila Mörch, Pilsbry, Man. of Conch., 2. ser, 
Vol. TX, 1894; p: 93: 
Surinam ? Cab. Raye and Cab. Dalen. 
The specimens of the species 13, 14, 15 and 16 have 
come in the possession of the Leyden Museum by purchasing 
the collection of Mr. Joan Raye in 1827, and that of 
Dr. Dalen in 1853. As far as I know, none of these spe- 
cies, inhabitants of the Greater Antilles, has been reported 
from South-America. Consequently it is very doubtful that 
they have been collected in Surinam. Their being labelled 
„Surinam”’, the last two moreover with a ?, perhaps will 
be owing to the fact, that they were brought to Holland 
via Surinam. I have mentioned them in this list in order 
to draw the attention of conchologists and collectors to 
these species, eventually having been imported in South- 
America. 
? 17. PLEURODONTE BIFURCATA Desh. 
Helix bifurcata, Deshayes, Guérin’s Mag. de Zool., 1838, 
Cll 36 2e 
Pilsbry, Man. of Conch, 2. ser. Vol. V, 1889, p. 170, 
Pl. 64, f. 22—95. 
Pleurodonte bifurcata Desh., Pilsbry, Man. of Conch., 2. ser., 
Vol. IX, 1894, p. 95. 
Martens, 1873, p. 214. Surinam. 
Notes from the Leyden Museum, Vol. XXXVI. 
