PLATE 46, 47, 48, 49. 
A small, and not a very common species. Limestone, 
Middleton. 
Fig. 11, 12 are front and side views of the same spe- 
cimen. 
FIG. 13 , 14 . 
CONCHYLIOLITHUS Anomites ( rempinatus ) trans- 
versim ovalis longitudinaliter striatus : striis confertis 
asqualibus minutis, valva imperforata convexiore. 
S. p. 
A fossil shell. The original an Anomia. Perforate, with 
convex valves. Hinge straight, patulous, shortened. Fora- 
men triangular. Valves transversely oval; their surface 
longitudinally striated ; the stri$ close, elevated, equal, 
minute, radiating from the beaks to the margin. The per- 
forated valve slightly convex near the beak, even or flat 
towards the margin : the imperforated valve more convex, 
frequently gibbous, particularly at the beak. This struc- 
ture, we may observe, is contrary to that of the other 
straight-hinged perforate Anomit^e, in which the valve con- 
taining the foramen is always the most convex. The beak 
of the perforated valve small, and pointed, somewhat pro- 
minent, but not curved over the aperture : the other beak 
larger, more obtuse, and equally prominent. The margin 
is quite entire, a very slight wave, only, being perceptible 
in some specimens. 
