The Shell-Collector’s Handbook. DE 
ANODONTA ANATINA, LINN. 
SHELL smaller than in A. cygnea, elliptical-oval in shape, 
compressed posteriorly, brown-olive coloured, irregularly- . 
wrinkled, and with bands of a deeper hue in the lines of 
growth; umbones straight, excentric; umbonal region 
compressed, rugose; ligament short, prominent; upper 
margin curved and raised into a sort of crest; anterior 
side sloping obliquely towards the lower edge, rounded, 
and gaping; posterior side curved, and sloping obliquely 
downwards to a wedge-shaped point; lower margin 
gently curved; muscular impressions more pronounced 
than in A. cygnea. 
Habitat.—Small rivers, canals and ponds. 
_v. radiata (Jeff.): Epidermis marked with green and 
yellow rays. (B.C. vol. i. p. 45). 
v. ventricosa (C. Pfr.): Shell very tumid in the 
middle and umbonal region, larger, more solid, marked 
with green and yellow rays. (=A. ventricosa, C. Pfeiffer, ii. 
p. 30, pl. ii.) 
v. complanata (Rossm.): Shell oval, very compressed, 
brown; umbones close to anterior margin; anterior side 
abruptly truncated; upper margin raised and curved. 
(= A complanata (Ziegler) Rossmissler, p. 24, f. 283). 
