UNIVALVES .. HELIX. 163 
aquatic plants, others are found on trees and shrubs, 
and some harbour in decayed wood. 
The term £\c& (Helix) as applied to this genus, is 
extremely indefinite, it refers only to the spiral form of 
the shell, and might with equal propriety be applied 
to any of the other turbinated genera. 
Divis1on L—Shell with a carinated margin on the body-whorl. 
Faminy 1.—Umbilicated and depressed. 
Scientific Name. Locality. Common Name. 
Lapicida SOIC Eurepe Bieleietehersrc\elelsievetsrel Rock Snail ---. 
Marginata --.-- » Jamaica +++++++++- -:++»  Margined - do -- 
Cicatricosa ----- S. Seas, China, Jamaica: Reversed-. do -« 
Albella --++++++« Europe, North America - Whitish -- do -- 
Albina clal@raiSialetatie® | sehellarcretst's A GALLOECHO Coon OO CEI Minute-white do 
Rotundata --e-+- England,Denmark,France Small radiated do 
Leevipes +++ ++ Guinea, Tranquebar +--+ Reverse-whorl'd 
Exilis ---++-++- - Tranquebar +++ -++++ee- White-striped do 
Cantiana:--++++- Britain,(particularly Kent) Kent --.--- do -- 
Rufesceus --++--+- England, Saxony +--+ -+- Reddish -- do -- 
Crenulata ----~+ England, France ------> Black-tipp'd do -- 
JNTMIEUR, Doct os Sadonddomsbnnndoo- sce Ringed e+ GO «« 
Fontana «eeeee-+ England «+-+e+++-++++- Fresh-waterdo -- 
Turcica ---+-+-- Mogadore, Morocco ---- Turkish --- do -- 
Famiry 2.—Umbilicated and convex. 
Cornu ++++++eee- New Zealand -----+-.-- Large horn do «+ 
Oculus-capri ---- Asia, Pulo Condore ---- Goat's eye: do -- 
IERIE Mas Gobobe Sob aoCen OU SOO OUOA EE AHOe White-reflected - 
Striatula-------. Algiers +++e+-+--- soeeee Striated -- do 
Algira+++-+++«.+ Africa,Amboyna,Jamaica Yellowish - do -- 
Leucas -:--. cooe 6 Affica -+-%- A eo hace Purple-lined doe: 
Trochoides------ East Indies-----+-++-+ -» Angular-mouth do 
Inecarnata +++-+»- Denmark, Germany ---- Flesh-color'd do-- 
M2 
