CONCHOLOGIA CESTRICA. 



59 



V. Gouldii, BINNEY. 



Pupa Gouldii, Binn., Proc. Bost. Soct Nat. Hist, L, 



1843- 



Shell very small, ovate-cylindric, chestnut- F * Gouldii - 



J [B. & B.] 



brown; whorls 4; apex obtuse; aperture Fig, ill, 

 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. i^, W. 

 I, mill. 



Station, among grass, and rubbish. New Garden, 

 Chester County ; common. 



V. milium, GOULD. 



Pupa milium, Gould, Bost. Jour. Nat. Hist, III., 

 1840. 



F. milium. [B. & B.] 

 Fig, 112, 



Shell very minute, chestnut col- 

 ored, cylindric-oval ; whorls 5, fine- 

 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. I, W. 

 two-thirds, mill. 



Station, among grass, leaves, and under chips. New 

 Garden, Chester County ; common. 



OBS. 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. 



