24 
TEREBRATULA affink 
TAB. CCCXXI V.—Fig. 2. 
Spec. Char. Orbicular, strongly striated ; up- 
per valve gibbose, with an elevated sinus 
in the front, lower valve nearly flat. 
i i inge line rather straight, almost equal to the width of 
the shell in length : the sinus in the front is obtuse, 
filled with a tongue-shaped elevation of the lower valve : 
the striae are deep and very regular. 
The strong resemblance this bears to the recent Tere- 
bratula dorsata of Lamarck, &c. (Anomia dorsata Auct.) 
makes it at first sight to be taken for it, especially if 
figures alone are consulted ; but the great inequality of 
the valves is a sufficient distinction. 
The specimens are from near Horncastle, and appear 
to he from decomposing Mountain Limestone; they were 
given to me by Mr. G. Weir. 
Smaller ones have also been sent me from the Malvern 
Hills by Miss Moles worth, and from Dudley by Mr. 
Ryan. 
