CONEGCHOLOGIA CESTRICA. 59 
V. Gouldii, BINNEY. 
Pupa Gouldiu, Binns )Proc. Bost. Soct. Nat. Hist., I., 
1843. 
Shell very small, ovate-cylindric, chestnut- "- Gowldié. 
brown; whorls 4; apex obtuse; aperture 
lateral, with four white, prominent, teeth — 
one on the transverse margin, two on the 
umbilical margin, and two on the thick, sub- 
reflected lip; umbilicus closed. H. 1%, W. 
i, canal, ; 
Station, among grass, and rubbish. New Garden, 
Chester County ; common. 

V. milium, GOULD. 
Pupa milium, Gould, Bost. Jour. Nat. Hist., III, 
1840. 
Shell, very miniite,; chestanticol- You. —([B. & B.] 
ored, cylindric-oval ; whorls 5, fine- eaeae 
striate ; lip reflected, white ; aperture 
lateral, half as wide as the last 
whorl, composed of two curves; 
teeth six—two on the transverse 

margin, two on the umbilical side, 
and two on the outer lip——that at the junction of the 
two curves being longest; umbilicus large. H. 1, W. 
two-thirds, mill. 
Station, among grass, leaves, and under chips. New 
Garden, Chester County ; common. 
Oss.— This is one of our smallest shells. Prof. 
Adams says, “twelve mature specimens weighed less 
than one-sixteenth of a grain.” 2100 shells, weighed 
by us, weigh only ten grains, when fully dry; which is 
equal to 210 shells to a grain, including the dried 
animals. 
