154 
PALEONTOLOGY OF NEW-YORK. 
Position and locality. This shell, which is more abundant than any other of the order, 
occurs in the central and higher part of the Trenton limestone at Middleville, Trenton 
Falls, Herkimer, and other places. 
195. 5. TELLINOMYA ANATINIFORMIS (n. sp.). 
Pl. XXXIV. Fig. 7. 
Oblong, subelliptical, slightly inequilateral; umbones little elevated above the cardinal 
line, which declines posteriorly ; anterior extremity rounded ; posterior narrower, sub¬ 
truncated. On each side of the umbones is a shallow sinus or groove, extending obliquely 
downward to the posterior and anterior ventral margin. 
The specimen has only a small portion of the shell remaining upon it, and its structure 
cannot be so well ascertained, but it appears nevertheless to belong to this genus, though 
deviating somewhat from the usual characters in the slight oblique fold upon each side of 
the umbo. The partial truncation in front, and contraction of this part of the shell, are 
characters common to several species of the genus. 
This is evidently a rare species, two specimens only having been seen. 
Position and locality. In the upper crystalline portions of the Trenton limestone at 
Watertown, Jefferson county. Dr. Crawe. 
196. 1. CARDIOMORPHA VETUSTA (n. sp.). 
Pl. XXXIV. Fig. 8. 
Subrhomboidal, gibbous, abruptly rounded anteriorly, sloping abruptly from the posterior 
cardinal extremity; umbones much elevated, nearly over the anterior extremity; surface 
marked by strong concentric ridges, with small depressions of equal width between. 
This species is only represented by a single imperfect specimen, which is well exhibited 
in the figure. The specimen has suffered slightly from compression, and the umbones were 
probably higher originally than they now appear. 
I have referred this species to Cardiomorpha of de Koninck, from its analogy in form 
to some species of that genus, not having had an opportunity of learning the essential 
characters on which it is founded. I believe this genus, as well rts Edmo?idia, has been 
constituted by M. de Koninck for the reception of several Carboniferous species, and it 
may perhaps be found to preclude those of lower Silurian epochs. 
Position and locality. In the central part of the Trenton limestone, in thin shaly layers. 
Middleville, Herkimer county. 
