PUPA. CLAUSILIA. 31 
whorls seven, flattish; aperture pear - shaped, 
curved, and narrower at the upper and outer 
angle; the peristome thickened and obtuse ; um- 
bilicus imperfect ; aperture with three teeth, one 
above, and one on each side. A variety of this 
shell has two additional denticles alternating 
with the larger one. +. B. Azeca Matoni of 
Turton, 52. 
CLAUSILIA. TERRESTRIAL. 
Sinistral, generally fusiform, slender ; summit some- 
what obtuse; aperture irregular, rounded, oval; 
margins united, free, and externally reflected. 
C. PAPILLARIS. Reversed, fusiform, peilucid, 
most minutely striated, brownish horn-colour ; 
sutures margined with a brown line, crenulated 
with white spots; aperture two-plaited. 74. T. 
56. 
C. PLICATULA. Reversed, fusiform, striated, 
reddish brown; columella with four or five plaits, 
two of which are more conspicuous. zz. B. 
a; 54. 
C. rugosa. Reversed, slender, elongated, 
acute, striated ; chocolate-brown; aperture two- 
toothed ; margin of lip white, and reflected. +z. 
Bane, 58. 
C. sipENS. Elongate, fusiform, sub-ventri- 
cose, solid, sub-striated reddish horn-colour ; 
