^ 
492 . Binney's Monograph of the Helices 
Greatest transverse diameter less than half an inch. 
GrocRaPHiCAL Distrisution. Inhabits the North- 
eastern and Middle States, in gardens; is common in 
the city of Boston in damp cellars. 
Remarks. This is the shell which was found by 
Mr. Say in gardens, in the city of Philadelphia, and 
by him described as Herix glaphyra. ‘Its restricted 
habitat in cellars and gardens long since induced 
me to suppose it might be an imported species, and 
a recent opportunity of examining a considerable 
number of specimens of Hxrix cellaria, MÜLLER, 
brought from England, enables me to say, that it is 
absolutely identical with that species. Shells of the 
same size and growth from the European and Ameri- 
can localities cannot be distinguished from each 
other. 
39. HELIX ARBOREA. 
Plate XXII. fig. 1. 
H. testa orbiculato-depressá, ténui, pellucida, nitidá, — 
‘apertura sub-rotundatà ; labro simplici, acuto. 
‘Synonyms AND REFERENCES. ; 
Helix arborea, Say. Nich. Encyc., Am. je IV. 
Pl. w., fig. 4 
Férussac: Hist. Nat. des Moll. adc. di 
219. 
Description. | 
Animal Head and tentacule blackish, üpper 
parts bluish, posterior pe whitish, wan 
Foot thin and narrow. 
