Cope. ] 176 [Aug. 17, 
On some new or little known Reptiles and Fishes of the Cretaceous No. 8, 
of Kansas. 
By E. D. Corps. 
(Read before the American Philosophical Society, August 17, 1877.) 
TOXOCHELYS LATIREMIS Cope. 
Final Report U. S. Geol. Surv. Terrs. II, pp. 98, 299. 
Two nearly complete crania of this species found by Mr. Sternberg, en- 
able me to give the genus a definite position in the system. 
The prefrontals have an extensive mutual contact, and extend to the ex- 
ternal nares, where they are somewhat contracted by the superior pro- 
cesses of the maxillary. They descend to the vomer, and are extensively- 
in contact with it. There are no distinct nasal bones. Lachrymal foramen 
rather small. The temporal fossa is extensively roofed, and the supraoccip- 
ital crest much produced backwards. 
The posterior nares are rather anterior, and are it iP and not 
underroofed by the osseous vomer. This element expands in front of the 
nares, where it separates the maxillaries. 
A foramen separates the maxillaries from the palatines, and the ectop- 
terygoids expand laterally. The superior alveolar surface is wide, and 
slightly concave. The external border is elevated and acute, and the inner 
border is slightly prominent and is roughened. 
The characters above adduced show that the genus Tovochelys is one of 
the Cryptodira, and that it is distinct from Huclastes (Cope) of the creta- 
ceous No. 5. In that genus the posterior nares are underrun by a produc- 
tion of the vomer, and the alveolar faces of both jaws are much wider. 
The general form of the skull of Yozxochelys is much like that of many 
Trionychide, but from these the characters of the marginal bones of the 
carapace, and the form of the extremities separate it. 
ICHTHYODECTES GOODEANUS sp. nov. 
This largest species of the genus is represented by a right premaxillary 
and a large part of the maxillary bones. The alveolar border is concave 
at the anterior part of the latter, and then becomes convex. The maxil- 
lary border is incurved at its anterior extremity, so that the line of teeth is 
turned inwards as well as strongly upwards, the middle part of the border 
being the most prominent. In this respect it differs from the other species, 
where the anterior part of the alveolar border is the most prominent. The 
anterior border is sigmoidally curved, and the vertical diameter is twice 
the transverse. The premaxillary teeth number thirteen and are somewhat 
“compressed so as to have opposed cutting edges; they are without grooves 
or ridges. The maxillary teeth are round in section. The posterior maxil- 
lary condyle is not protuberant, and is decurved anteriorly. The maxil- 
lary underlaps the premaxillary to near its anterior border. 
