The Shell-Collector’s Handbook. 97 
rounded at the base, more narrow above; columella 
slightly concave in the middle, oblique, thin, transparent, 
fragile, crystalline, finely striated, pale or deep yellow 
amber-coloured with a greenish tint. Height 14-20 mill. 
v. Subglobosa (Jeff.): Shell shorter and broader in 
proportion to its length, usually much smaller and more 
solid. (B.C. vol.i., p. 152.) 
v. vitrea (Jeff.) : =Succinea virescens, Morelet. (Vide 
mnfra). 
v. solidula (Jeff.): Shell much thicker, reddish-yellow. 
(B. C. vol. i., p. 152.) 
SUCCINEA VIRESCENS, MORELET. 
SHELL ovate-oblong, very thin, pellucid, greenish-yellow, 
concentrically striated; columella whitish; aperture 
ovate ; spire very short. Length 10 mill., diameter 5 mill. 
Aperture 8 mill. long ; 43 mill. wide. 
Habitat.—Marshes and ditch-banks. 
SUCCINEA ELEGANS, RISSO. 
SHELL smaller, more slender, and with a spire longer and 
more pointed than in S. putris, semi-transparent, amber- 
coloured. Animal yellowish-brown or black, making the 
shell, when containing the animal, appear of a greyish- 
blue, bluish, or greenish-black colour. 
Habitat.—Generally found in company with 8. putris. 
v. minor (Jeff.): Shell reddish-brown, thinner; spire 
shorter ; aperture more expanded. 
v. ochracea (Betta): Shell smaller and thicker ; spire 
longer; aperture smaller. 
v. albida (Taylor): Shell white. 
m. Ssinistrorsum (Baud): Whorls disjointed. 
H 
