STEWART: NEW CRETACEOUS FISH, 195 
MEASUREMENTS. 
Maxillary: length from premaxillary surface. ...... 5). .00.. 00.0000 sees 135 
y GEpianGr COMmmMere Mea C nears tele a Fe, tid sus bo alee gate hag Davee es 26* 
Mandible: length from cotyloid cavity................ Ino Ua ah A Le ea 157 
HS lenvtheors alvEOlamDONAeL erent on teens athe sen ae he ale Ne setae 122 
GEPLMEARLCOLOMOIGEAICLEN sis, ered iNet ace oe) ocd sen ota) atti bettas phe taed 48.3 
NUIMperM OL tee thanrOnevinCh ss wets fasts. Sacks Po coda mee ss 8 
ELV OIEHs (2) Chis ATIC. ACKOSSsaM CELIO“ CHWs Whe sehen ae co ralstecs mee tise al gio Gee 23% 
In addition to the above the following species have been de- 
scribed from Kansas: 
P. kingii Cope. Proc. Am. Phil. Soc., 1872. p. 344. 
P. latimentum Cope. |, c., p. 346. 
P. sheareri Cope. l.c., p. 347. 
P. caninus Cope. l.c., p. 344. 
P. leptopsis Cope, Hayden’s bull. U.S. Geol. Surv. Terr. No. 2, 1874, p. 42. 
BERYX(?) Cuvier. 
The material referred to this genus consists of fragments of 
several individuals, including two species. The bones are different 
from those of any of the Cretaceous fishes heretofore described from 
America, but resemble somewhat the figures of Beryx from the 
chalk of England. For the present I will leave it in this genus. 
Beryx polymicrodus sp. nov. . 
This species is represented by the mandibles, maxillaries, pre- 
maxillaries, and other fragments of several individuals. 
The maxillary is elongated and slightly concave on the alveolar 
border, which is rather broad in front and narrow behind, and is 
covered with numerous villiform teeth directed inward. Just above 
the most anterior of these there is an elevated articular portion 
which probably binds the jaw to the skull. The posterior portion 
is expanded and covered with very coarse striz. 
The premaxillary resembles in a general way some of the 
recent cat-fishes. The alveolar portion is covered with villiform 
teeth slightly larger than those upon the maxilla. They are 
directed inward and increase in size from before backward. 
The dentary is rather light in structure and is covered above 
with teeth similar to those found upon the maxilla and premaxilla. 
The symphysis consists of an internal and an anterior portion. The 
first of these is a flat facet, the second a well rounded condyle. 
The alveolar surface is projected forward over this portion as well 
as overhanging all the external side of the dentary. Below the 
alveolar portion the bone is covered with large longitudinal ridges 
on both the external and internal sides of the bone, 
*Kstimated, 
