Umbilicus slightly covered by the reflected lip; about I/4"; California 

 Trilohopsis loricata (Gould) 

 (Polygyra lecontii (Lea) ) 



189. Lip slightly expanded and reflected; many, but not all, of this group have 



one or more revolving bands of color 190. 



Lip not reflected; shell unhanded in most, but not all, species 207. 



190. Minute (not over Vs") shells; epidermis usually shining or transversely 



ribbed, plain colored 207. 



Moderate si2;ed to large shells; usually banded 191. 



191. Shell widely umbihcated, showing the volutions; lip continuing as a thin 



callus across the parietal wall 223. 



Not so 192. 



192. Shell about as high as wide; parietal wall rose colored; about Ys"; 



Florida 



Cepolis varians (Menke) 

 Not so 193. 



193. Introduced European species found mostly in the eastern states (one 



species in California); spire usually well elevated; umbilicus small or 



absent 194. 



Native species 197. 



194. Lip dark colored; no umbilicus 



Cepaea nemoralis (Linn.) European Garden Snail 

 (Helix nemoralis (Linn.) ) 

 Lip light colored or shell with an umbilicus 195. 



195. Shell shining and practically smooth, except for fine growth lines; usually 



dark banded, but sometimes plain yellowish 

 Cepaea hortensis (Miiller) 

 Shell dull, pitted, usually dark banded 196. 



196. With a narrow umbilicus; lip brownish 



Hehx pomatia Linn. Edible Snail of Europe 

 No umbilicus; lip white 



Hehx aspersa Miiller Garden Snail of Europe 



197. Shell usually with many fine dark lines; umbilicus indented but closed; 



central states 



Triodopsis (7s[eoheIix) multilineata (Say) Many-lined Wood 

 Snail 

 Color hands usually wider and fewer; often with an umbilicus 198. 



198. Width almost two times height; umbilicus rather wide, about one-fifth 



the diameter of the shell; with a small swelling on the lip within the 

 base of the aperture; about 1" to 1%"; eastern and central states 

 Allogona (Allogona) profunda (Say) 

 Not with the preceding combination of characters; southern and western 

 states; moderate sized to large shells 199. 



136 



