7 
TEREBRATULA coarctata. 
TAB. CCCXII .—Figs. 1 to 4. 
Spec. Char. Subheptagonal, gibbose, hispid, and 
decussated ; lesser valve convex,, subtrilobated ; 
larger valve biplicated, with a deep angular 
sulcus between the plaits. 
Svn. Terebratulites coarctatus. Parkinson Org. 
Pern. III. 229. 
Terebratula reticulata. Smith Strut . Syst. 
S3. Strata identified. 30. fig. 10. 
P erhaps it would be more correct to describe this shell 
as five than as seven-sided, two of the sides being gene- 
rally very small and convex : the length is rendered 
greater than the width by the projecting beak : the two 
plaits or ridges upon the larger valve appear as if pinched 
up, whence the name : the minute bristles that render the 
surface hispid, are short, often tubular, and are situated 
upon the angles of intersection of the two sets of lines, 
of which the longitudinal are elevated and cut by the 
transverse. 
This is characteristic of the clay upon the Great or 
Bath Oolite ; I have received it from C. W. Loscombe, 
Esq. and other friends from Hinton, near Bath, &c. 
Supposing this to be T. coarctatus of Parkinson, I have 
retained that name for it, and applied Smith’s name 
reticulata to the following, which he either did not know, 
or did not think to be a distinct species. It is figured by 
Walcott in his Petrefactions found near Bath, No. 28 ; 
his specimens are from Hampton Down. 
