BIVALVIA. 1] 
A few specimens resembling the figure, and corresponding with the description of 
what the authors of ‘Brit. Moll.’ have considered as distinct, are in my cabinet, from 
the Coralline Crag: they consist of the upper valve only, which is somewhat finely 
striated over the earlier formed part of the shell, while the latter or outer portion is 
covered with larger and coarser radiations. The umbo is rather more prominent, and 
placed at a greater distance from the margin than in “p/ippium, a broad triangular 
fossette beneath the umbo received the ligament, and the upper valve in my Cor. Crag 
specimens is nearly flat. A number of specimens of the upper valve, from the 
Red Crag, present characters by which they may be referred to the above recent 
species, and are uniform in their exterior markings, having large and undulating ribs 
or broad and elevated striz (fig. 4, z). This is the only species or variety, that I have 
been able to obtain from the Red Crag, and those specimens, as might be expected, in 
that deposit, consist of the upper or thicker valve only; this is pretty uniform in 
shape, which is nearly orbicular, though the diameter in some is greater from the 
umbo to the ventral margin, in others it is the reverse. 
4. ANomIA sTRIATA? Brocchi, Tab. II, fig. 3. 
Sauama MaGNna ? Chem. Conch. Cab., t. vii, p. 87, pl. 77, fig. 697. 
Anomia strata? Broc. Conch. Foss. Subap., p. 471, t. 10, fig. 13, 1814. 
— — ? Loven. Ind. Moll. Seand., p. 29. 
— — ? Goldf. Pet. Germ., t. li, p. 39, tay. 88, fig. 4, a—e. 
— — Phil. En. Moll. Sic., vol. ii, p. 66, 1844. 
— — ? Ford. and Hanl. Hist. Brit. Moll., vol. ii, p. 336, pl. 55, figs. 1, 6, and 
pl. 53, fig. 6, 1849. 
— ruaosa. Nyst. Coq. Foss. de Belg., p. 312, pl. 24, fig. 6, 1844. 
— saquama? W. Wood. Ind. Test., p. 55, pl. 11, fig. 11, 1825. 
— — ? Brocchi. Conch. Foss. Subap., p. 462, No. 4, 1817. 
? Ency. Meth., pl. 171, fig. 22. 
Spec. Char. Testé variabile, orbiculata, vel transverse ovata, discoided, radiata ; striis 
creberrimis, imbricato-squamulatis ; umbone submarginalt. 
Shell variable, ovate, orbicular or discoidal; sometimes transversely ovate, covered 
with numerous radiating, rather rough or imbricated strize ; umbo submarginal. 
Diameter, 2 inches. 
Locality. Cor. Crag, Sutton, Sudbourn, and Gedgrave. 
Recent, Britain and Scandinavia. 
A large number of loose valves in my cabinet, from the Coralline Crag, correspond 
with the figures and description as given of the recent shell under this name, which is, 
probably, the same as the fossil one figured by Brocchi, although that shell appears to 
have the umbo rather nearer to the margin. Ours may be described as variable in 
form, the upper valve sometimes flat, in others convex, covered over with numerous 
subimbricated striz, with the umbo a little distant from the edge. 
