LAND SHELLS OF UTAH. 
SSS a 
Zonites arboreus,Say. 
, Chersina, ., 
, Whitneyi, Newc. 
Vitrina Pleiffori, ‘Newe. 
Patula Cronkheitei, Newce 
strigosa, Gld. 
~ 
ee eo 
Ue OS WO eS DD 2S OT eR WH 2 
? ‘ var. 
‘ ‘ medium 
' é small. 
: , bandless, horn-color,large. 
‘ F j ; medium. 
; ' ao ; very small. 
; : albino, large. 
: ; . medium. 
15 f ; very small, 
Intermediate forms connecting strigosa & Cooperi. 
16 ; ; large , banded. 
17 4 medium. 
18 ; : diaphanous, banded, horn-color. 
19 ‘ ; var 
20 ; small, variable. 
21 ‘ albino, rough strie. 
22 Patula Cooperi, Binn- Elevated. 
23 : medium. 
24 ? : horn-color. 
25 % ‘ var. 
26 : ; small. 
27 7 , albino, rough strie. 
: very small. 
SO EE SH ig 
