10 NON-MARINE MOLLUSCS OF SURINAM. 
von Martens is not quite sure if the loealities in Venezuela 
and Guyana, given for this species, an inhabitant of the 
eastern slopes of the Andes, are not depending on the shells 
having been brought to Europe with ships, sailing from 
sea-ports in these countries. 
* 18. STROPHOCHEILUS OBLONGUS Müll. 
Helix oblonga, Müller, Hist. Verm. II, 1774, p. 86. 
Strophocheilus oblongus Müll., Pilsbry, Man. of Conch., 2. ser., 
Vol. X, 1895, p. 29, Pl. 14, f. 70—73. 
Surinam. ? 
Surinam. ten Kate. 
Environs of Paramaribo. van Cappelle, 1900. 
Environs of Paramaribo. van Heurn, 1911. 
Post Groningen. van Heurn, 1911. 
Lister, 1685, 23, 21. Surinam. 
Albers, 1860, p. 191. Surinam. 
Martens, 1873, pp. 171, 214. Surinam. 
This widely distributed species seems to be very com- 
mon in Surinam. Mr. van Heurn’s collection contained shells 
of various stages of age. 
?19. STROPHOCHEILUS ovatus Mill. 
Helix ovata, Müller, Hist. Verm. II, 1774, p. 85. 
Strophocheilus ovatus Mill., Pilsbry, Man. of Conch., 2. ser., 
Vol. X, 1895, p. 24, Pl. 12, f. 60, 61. 
Kappler, 1887, p. 204. Surinam. 
Kappler says that this snail is very common in many 
places in Surinam. The short description he gives of it, is 
just agreeing with S. oblongus. For that reason, and be- 
cause nobody else has mentioned or collected S. ovatus in 
Surinam, I suppose Kappler’s species was the preceding. 
* 20. AURIS DISTORTA Brug. 
Bulimus distortus, Bruguière, Encycl. Méth. I, p. 344. 
Auris distorta Brug., Pilsbry, Man. of Conch., 2. ser., Vol. X, 
1896, p. 109, Pl. 40, f. 21—32. 
Coast-region of Surinam. ten Kate. 
Environs of Paramaribo. van Heurn, 1911. 
Post Groningen. van Heurn, 1911. 
Schepman, 1887, pp. 155, 164. Marowijne (subfossil). 
Notes from the Leyden Museum, Vol. XXXVI. 
