68 
TEREBRATULA orbicularis. 
TAB. D XXX\.—Jig.3. 
\ 
Spec. Char. Uniformly convex, plaited ; plaits an- 
gular, simple, about 15 ; lesser valve orbicular, 
the other with a large curved beak. 
Although at first sight the plaits upon this shell ap- 
pear simple, yet they are sometimes forked near their 
commencement : it is therefore possible that the species 
last described may be only the young of this. 
From the Lias at Weston near Bath. The surface is 
minutely punctated. 
TEREBRATULA oblonga. 
TAB. D XXXV.— /g. 4, 5 & 6. 
Spec. Char. Oblong, gibbose, plaited; plaits 16 
or more, forked, their edges rounded ; beaks 
large, broad, slightly incurved. 
Half as long again as wide : the hinge is rather broad, 
which makes the beak large : the front is even, and the 
aperture of the beak round. 
Occurs in the Greensand. Figs. 4 Sc 5, are from spe- 
cimens presented to our collection by H. H. Goodhall, 
Esq. They are from the ferruginous bed of the Green- 
sand at Farringdon. Fig. 6. is from a specimen picked 
up at Sandgate in Kent 
