CONCHOLOGIA CESTRICA. 29 
M. bucculenta, GOULD. — 
Helix bucculenta, Gould, Proc. Bost. Soct. Nat. Hist., 
ifl., 1348. 
M, bucculenta. —[B. & B.] 
Fig, 22, 

Shell sub-globose, finely striate, yellowish-white to 
pale brown; whorls 5, rounded; base convex; aperture 
rounded; the peristome forming nearly two-thirds of a 
circle, and broadly reflected, white, flesh colored behind; 
umbilicus partly covered; sometimes a small, white, 
tootheon; the pillar, often edentate)> Hi: “10; We 15, 
mill. 
Station, under logs in moist grounds, and meadows. 
Chester County ; common. 
M. bucculenta, var. Rufa, Michener, Amer. Jour. 
Conch. 1k, 1866. 
Helix rufa, De Kay, Nat. Hist. N. Y., Part I., 1843. 
Shell smaller and more delicate than the preceding; 
often strongly rufous, giving color to the reflected lip; the 
transverse striz are strongly marked, and often reticu- 
lated, by microscopic revolving lines. H. 13, W. 18, 
mill. 
Station, accompanying the last species. Chester 
County ; common. 
Oss. — W. G. Binney, speaking of JZ albolabris, says, 
“Helix rufa, De Kay, appears to be the young of this 
species.” Again, under 77. ¢hyrotdes, he says: “One 
[variety ] from Germantown, Pa., is very small, measuring 
only 15 millimeters in diameter. It is globose, shining, 
sometimes imperforate, and generally without a parietal 
Bs 
