20 NON-MARINE MOLLUSCS OF SURINAM. 
Achatina trochlea, Pfeiffer, Symb. ad Hist. Helic. II, 1842, p. 59. 
Subulina octona Brug., Pilsbry, Man. of Conch., 2. ser., Vol. 
XVIII, 1906, pp: 72, 222, Pl. 42, f. 8, 9) Di 
f. 28—37, 39, 40. 
Environs of Paramaribo. van Heurn, 1941. 
Post Groningen. van Heurn, 1911. 
Coronie. van Heurn, 1914. 
Nickerie. van Heurn, 1911. 
Pfeiffer, 1872, p. 76. Environs of Paramaribo. 
Martens, 1873, p. 218. Surinam. 
This widely distributed species appears to occur very 
abundantly in Surinam. | 
* 48, LEPTINARIA LAMELLATA Pot. et Mich. 
Achatina lamellata, Potiez et Michaud, Gal. Moll. Mus. Douai 
I, 18385p- 128, 1.44, 1708: 
Achatina funcki, Pfeiffer, Proc. Zool. Soc., 1847, p. 232. 
Leptinaria lamellata Pot. et Mich, Pilsbry, Man. of Conch., 
2. ser. Vol. XVIII, 1906, p. 288, Pl. 42, f. 39, 40, 
Pl. 43, f. 50, Pl. 46, f. 1—4. 
Raleigh Falls (Coppename). Coppename-Expeditie. 
Environs of Paramaribo. van Heurn, 1914. 
Pfeiffer, 1872, p. 76. Environs of Paramaribo. 
Martens, 1873, pp. 192, 215, 218. ‘Surinam. 
Pilsbry, 1906, p. 291. Surinam. 
The specimens from Paramaribo are varying very much 
in shape and size; the extreme forms however are con- 
nected by intermediate ones. This species seems to be very 
common in the neighbourhood of Paramaribo. 
* 49, Pupa EYRIESI Drouet. 
Pupa eyriesti, Drouet, Essai sur les Moll. terr. et fluv. de 
la Guyane francaise, 1859, p. 71, T. 2, f. 16, 17. 
Lechmere Guppy, Journ. of Conch., VII, 1893, p. 220. 
Nickerie. Voltz. 
Though the length of this minute shell is 2m.M., and 
the diameter only 1 m.M., Drouet giving for the type: 
length 1'/,, diam. 1 m.M., (on his magnified figure the 
relation is 11 : 6), the impression near the aperture in- 
duces me to consider this single specimen as P. eyries?. 
Notes from the Leyden Museum, Vol. XXXVI. 
