52 
the lower ; the regular oval form rather pointed at the 
beak end is characteristic, and distinguishes it constantly 
from T. biplieata a (tab. 90.) of which three views are 
given in tab. 437 figs. 2 and 3 for comparison. 
Fig. 2 is a young shell, it is rather shorter, as usual, 
than the full grown one fig. 3. They are from Dundry, 
by favour of G. W. Braikenridge, Esq. 
TEREBRATULA maxilata. 
TAB. CCCCXXXYI. —fig. 4. 
Spec. Char. Subquadrangular, convex ; two 
acute rising sinuses in the front, and one 
obtuse sinus on each side ; three conspicuous 
furrows in the upper, and two in the lower 
valve; front rounded. 
W ell distinguished from T. intermedia t. 15. by the 
depth of the sinuses, and consequent furrows which ex- 
tend at least half way to the beak ; in some specimens 
the two central ridges between the furrows are very 
prominent, and approach more nearly together than in 
the specimen figured, such shells are also generally 
longer shaped; it is always smaller than the T. intermedia. 
A front view of the sharply sinuated edge, reminds us 
of the closed jaws of a carnivorous animal, whence the 
specific name. 
Sent from Nunney by our good Friend the Rev. J. 
Ireland ; the longer variety we have from Farley. 
