130 LIMNAID. 
Var. XV. stagnéliformis (Taylor). Somewhat fusiform ; 
last whorl making four-fifths of total length. A. 35 mm. 
B. 18 mm. 
Var. XVI. boisstt (Dup.). Small, globose; whorls 
convex; spire produced. 
Var. XVII “ebtdsa. (Kob.).° Shell. large; ‘spire pvery 
small; whorls very convex, increasing rapidly; mouth 
ample, almost reaching the level of the apex of the spire. 
N.B.—This var. is very like L. auricularta. 
Var. XVIII. pulchélla (Rof-). Small, pale, rather 
pronounced lines of growth; aperture slightly margined. 
A. 11 mm. 
Var. XIX. didphana (FParr.). Very thin and trans- 
parent. 
Var. XX. injldta (Kod.). Shell larger ;~spire small; 
whorls not very convex ; aperture pyriform. 
Var. XXI. pdtula (Da Costa). Shell larger, much 
more inflated and globular; spire short; whorls very 
convex ; mouth ample. 
Var. XXII. mucréstoma (Kob.). Shell more slender 
and elongate than the type, with spire longer than the 
mouth, the whole shell approaching Z. palustris in outline. 
Monst. I.  szwzstrorsum (/Jeff.). Reversed. 
Monst. II. scalariforme (Jeff.). Whorls disjointed. 
Monst. II]. decdllatum ( Jeff.). Spire truncate. 
