16? 
TEREBRATULA plicatella. 
TAB. DHL— fig. 1. 
Spec. Char. Subglobose, rather square, plaited ; 
front elevated ; beak small, with a broad ob- 
long- concave space on each side ; plaits 40, 
rounded. 
Ten or twelve of the plaits rise gradually with the 
front ; the descending sides are rather straight, which, 
with the flattish spaces on each side of the beak, give the 
whole a squarish outline s the plaits are often branched 
near the beaks, so that they were less numerous in the 
young shell. 
Upon plate 244 of the Encycl. Methodique (fig. 2) is 
represented a Terebratula* that much resembles the one 
before us; but it has a much less number of plaits, and is 
in this respect more like the following : they all have 
the remarkable space on the sides of the beaks. 
The cabinet of H. T. De la Beche, Esq. is enriched 
with this probably scarce fossil : it is from the inferior 
Oolite at Chideock near Bridport. 
* Lamarck Hist. Nat. vi. Part I. 253, refers to this as T. 
tetraedra, considering it the same as T. tetraedra of Min. Con. 
t. 83, f, 4, which he also quotes ; but which is a totally different 
shell. 
