EXTINCT AMPHIBIA OF NORTH AMERICA 61 
The specimen is from the Cannelton slates, Middle Kitanning, 
near Cannelton, Pennsylvania. It is No. 4,555 of the U. S. National 
Museum Collection. 
TUDPITANUS SCULPTILIS sp. nov. 
(Figs. 11, 12) 
There is preserved in the collections of Walker Museum a small 
amphibian skull pressed flat on a slab of slate from Cannelton, Penn- 
Fic. 11.—The skull of Tuditanus sculptilis as it is preserved on the slate. X3. 
sylvania. This specimen formed a part of the Hall Collection recently 
acquired by the University of Chicago. It is No. 12,315, U. of C. 
The specimen presents only a portion of the skull and fragmentary 
pectoral plates. The skull is wider than long and the muzzle is 
broadly rounded. The orbits are narrow ovals and their posterior 
border falls on the transverse line dividing the skull equally. The 
interorbital width is slightly greater than the width of the orbits and 
about equal to their length. The posterior outline of the skull is 
