44 BOOK OF SPECIES. 
of inner lip rising on the columella, and forming 
an oblique plait; no operculum. 
* With the spire as long, or longer than the aperture. 
L. sTAGNALIS. Oval-oblong, with the lower 
volution much inflated, and somewhat angu- 
lar; suture deep; thin, greyish white; whorls 
six or seven; apex acute; lip spread. 3. B. 
~T. 104. 
L. pAuustris. Conic-oval, with six rather 
tumid volutions ; the lower one somewhat angular 
by raised transverse and longitudinal striz ; brown 
horn-colour, somewhat opaque; whorls scarcely 
raised. 2. B. T. 107. 
L. mrnuta. Oblong-oval, with five, six, or 
seven rounded and deeply divided volutions, stri- 
olate longitudinally and across; pale brown or 
prow, 3. BT. 108. 
L. Leucostoma. Elongated, taper, with 
seven or eight convex volutions ; and the aperture 
very short; the last volution is not larger in pro- 
portion than the rest. 1. B. T. 106. 
** Spire not so long as the aperture. 
L. AURICULARIA. Extremely inflated, stri- 
olate, with a very short acute spire; aperture 
oblique, vastly expanded, and roundish oval ;_pil- 
lar with a strong fold, light yellow horn-colour. 
Liwab.. u<Dehie: 
L. PEREGRA. Ventricose, more or less striate, 
