CEPHALOPODA OF THE CRETACEOUS MARLS. 967 
although Mr. Meek cites it as from the State, probably basing his identifica- 
tion on those mentioned above. I give the species here to help in the 
identification should specimens of it be found in future, that the record 
may be as perfect as possible. 
SCAPHITES SIMILIS, n. sp. 
Plate xiv, Figs. 1, 2. 
Shell small, the type specimen, the only one known at present, being 
only five-sixths of an inch in its greatest length, and although not quite 
finished at the aperture, would not exceed 1 inch were it continued to its 
entire size. Volutions laterally compressed, rounded on the back, and 
marked by fine transverse ridges to beyond the commencement of the outer 
chamber, beyond which point the ridges are larger and indistinct, especially 
on the sides. A single line of nodes marks the outer angle of the body 
volutions, and are largest opposite the middle of the horizontal portion of 
the coil. Septa not very crowded and rather simple, consisting of the dorsal 
lobe and three lateral lobes on each side’ outside of the umbilical cavity, 
which is quite small. Dorsal lobe moderately large, the lower branches not 
quite half as long as the height of the first sinus, the extremities rounded, 
and with a rounded protuberance on its outer side, above it there is one 
other projection on each side. First lateral lobe large, broadly flabelliform 
with six short blunt fingers arranged around its rounded end, and one other 
at the junction of the first sinus; second and third lobes small, and consist- 
ing of only a single bluntly rounded member each. The first sinus equals 
the first lateral lobe in size, but is bilateral at the extremity, each division 
showing a slight indentation on the middle. The other sinuses are simple 
rounded sinuosities, but slightly broader than the corresponding lobes. 
The species resembles in miniature S. nodosus Owen, from the Creta- 
ceous of the Upper Missouri, and New Jersey, in its general form and fea- 
tures, especially so on the back in the marking of the surface. There is 
evidence, however, of only one line of nodes on each side, instead of two 
as is usual on that one, although by no means always developed. There 
is, however, a great and very marked difference in the form and details of 
the septa, as on a young specimen of S. nodosus of the size of this one they 
