46 
MYA V. scrip ta. 
TAB. CCXXIV.— Figs. 2, 3, 4, and 5. 
Spec. Char. Transversely oval, subequilateral, 
convex, smooth, thin, with obtuse angularly 
bent ridges upon the central part ; angles of 
the ridges acute, in an oblique direction. 
(Var. /3) with an oblique elevation bounding the 
anterior side. 
Figs. 2 and 4. 
-F his differs from the species last described only in the 
oblique direction in which the angles of the ridges suc- 
ceed each other, and these angles being more acute, 
altogether giving a different contour to the surface. In 
var. /3 the elevation which distinguishes it may possibly 
be the effect of pressure. 
I have this species from the Kelloways rock at Little 
Somerford, by favour of the Rev. H. Steinhaiier, whose 
specimen is shewn at fig. 3 ; and from Kelloways, through 
the kindness of Mrs. Wetherall, who resides near the 
spot. Fig*. 5 is from Bedford Castle, picked up bv 
Mr. Goodhall. 
The variety, figs. 2 and 5, are from two individuals 
in the possession of the Rev. W. D. Conybeare, who 
got them at Claydon, in Oxfordshire, out of the Shue- 
borough bed of Lyas : they are very far from perfect. 
MYA angulifera. 
TAB. CCXXIV.— Figs. 6 and 
Spec. Char. Transversely elliptical, elongated, 
gibbose, with obtuse angularly bent ridges 
upon the surface ; anterior half widest, gaping ; 
angles of the ridges acute, in an oblique di- 
rection. 
T he ridges extend beyond the central part of this shell, 
and consequently many of them reach the front without 
being bent. The width is almost three times the length ; 
the posterior side is very small. 
Found in Limestone, in what is called by Smith the 
Fullers’ Earth bed, at Smallcomb and Beacon Hill, Bath, 
by the Rev. H. Steinhaiier. 
