NON-MARINE MOLLUSCS OF SURINAM. 31 
Surinam. Grinwis Plaat. 
Marowijne. Tapanahoni-Expeditie. 
Lucie River. Corantijn-Expeditie. 
Environs of Paramaribo. van Heurn, 1911. 
Drouet, 1859, pp. 42, 78. Paramaribo. 
Martens, 1873, p. 216. Surinam. 
Kappler, 1886. p. 203. Surinam. 
The specimens from various parts of Surinam in the 
Leyden Museum are olivaceous. The last whorl is encircled 
by many dark brown bands, in some specimens coalescing, 
and almost obscuring the ground colour. This species appears 
to occur abundantly in various parts of the colony. 
* 76a. AMPULLARIA GLAUCA L., var. ORONOCENSIS Rve. 
(fig. 14). 
Ampullaria oronocensis, Reeve, Conch. Icon., Vol. X, 1856, 
Ampullaria, spec. 45. 
Ampullaria glauca L., var. oronocensis Rve, Sowerby, Proc. 
Mal. Soc. VIII, 1909, p. 351. 
Litani. Gonini-Expeditie. 
Upper Gran Rio. Corantijn-Expeditic. 
The Gran Rio-specimen measures: length 56, diam. 63, 
length of aperture 47, diam. 30 m.M.; the Litani-speci- 
men: length 61, diam. 74, length of aperture 54, diam. 
34 m.M. It must be observed, that the apex in both shelis 
is eroded, the real length of the shell therefore will be a 
trifle more. I think A. castanea Desh. is nearly related to 
my specimens, and will prove to be also a variety of 
A. glauca. 
? 77. CYCLOSTOMA spec. 
Kappler, 1887, p. 204. Surinam. 
No true Cyclostoma being recorded from the new world, 
Kappler’s specimens might have been a Neocyclotus spec. 
? 78. Hyprosia spec. cf. STAGNALIS Baster. 
Turbo stagnalis, Baster, Opusc. subsec. II, 1765, p. 77, PL. 8, 
fs AA Be 
Hydrobia stagnalis Baster, Dollfus, Journ. de Conch. LIX, 
1912, p. 234, Pl. 5, f. 4—8, 44—18. 
Notes from the Leyden Museum, Vol. XXXVI. 
