72 ROY L. MOODIE 
SECOND SPECIMEN 
engthiof specimen’ as) presenvedie meer ae ene: .225 mm 
Width of chevron rodispacen scene r rm oa tian. 30 mm 
Length oferib oie occas eos cscs econ ts Omani or dansanens 25 
The species is based on two specimens which form part of the 
Lacoe collection belonging to the U. S. National Museum where they 
are Nos. 4,476, and 4,459. The specimens are preserved on two 
blocks of bituminous coal from the mines at Linton, Ohio. 
MACRERPETON HUXLEYI Cope 
(Fig. 17) 
The new genus Macrerpeton is proposed for the reception of the 
species of amphibian described by Cope as Tuditanus huxleyi. 
This form he placed provisionally in the genus T'uditanus since it 
seemed to present the same type of sculpturing of the cranial elements 
similar to that found in 7. radiatus Cope. Even this species, in all 
probability does not belong in this genus but it cannot be removed 
at present. Closer study of the type specimen of Tuditanus huxleyi 
Cope shows great variation from any of the species described from 
Linton, Ohio, and indeed from any Carboniferous form thus far 
known. 
The specimen represents the left side of the face of a form which 
seems to approach the higher labyrinthodonts in the shape of the 
skull. The orbit is far removed from the border of the skull and 
taking the median line of the skull as somewhat further inward than 
the part preserved we have a skull which cannot be far from the figure 
(Fig. 17). The left posterior angle of the skull seems to be repre- 
sented by a depression on the face of the block of coal on which the 
specimen reposes. The arrangement of the bones as given in the 
diagram (Fig. 17) strongly recalls that of Capztosaurus from the 
Keuper of Europe. The anterior border of the skull is restored 
after the skull of Capitosaurus but the skull may have been pointed as 
in Archegosaurus. The character of the teeth would seem to be 
such as to refer the form to a labyrinthodont. The teeth are very 
t Rept. Ohio Geol. Surv., 1875, P. 397- 
