Cope.] : 578 (Feb. 3, 
forearm, or are a pair of short ribs. Impressions only of the teeth remain ; 
they indicate small pleurodont denticles like those of the Anura. 
Measurements. M. 
Length of cranium above...... ....seeeeee eee ee eens 029 
Width “ EAS _ ave dbadiidr eave oak tus aisiea sd rae cccuatet er .037 
‘© between epiotic angles...........--seeeeeeeeee 018 
‘* of interorbital space........ 6... e eee eee eee eee .007 
“Cor bibasama essa sae heen ohne eee de eeleree eens 006 
Length {8.68 oo eens d oe eeetian ed see eGR Ea 4% 007 
«skull to fontanelle 2.0.2.0... cee cere eee -008 
«from orbit to MATS. ... 2... c eee ete eee eee 005 
OG > TSE S28 “«  « to end of snout......-.. 2... 00 003 
os ‘lateral pectoral shield. .........0- .eeeeeeeee 015 
1) SAM OUIEIS oe gucek bier sha 4 cau Manes ee oe dem ees 004 
Widtlic 8-8 cae. caccaeiauiiaiihd 2 Bee Buea nnnit demas 004 
This species of Tuditanus differs from the 7. radiatus in the larger and 
less anteriorly placed orbits, and in the large truncate posterior table of the 
‘skull. The proportions of the latter are more those of P. obtusus, but the 
epiotic angles have not been observed in this species, the sculpture is punc- 
tate not linear, and the form of the supraoccipital is quite different. Com- 
parison with the other species referred to that genus is unnecessary, ex- 
cepting in the case of the 7. mordax. Further examination of the speci- 
men on which the latter was founded leads to the belief that it isan imper- 
fect cranium of Oeraterpeton punctolineatum Cope. The latter name, as the 
preferable one, may be adopted, and the former becomes a synonym. 
CoLOSTEUS SCUTELLATUS, Newberry; Cope, Rept. Geol. Surv. Ohio, 
Paleontology Vol. II, p. 407. 
Another specimen of this species was obtained by Prof. Newberry during 
the past season, which includes some parts of the skeleton not previously 
observed. 
The specimen presents a superior view of the ventral and thoracic pro- 
tective armature, and of the posterior portion of the cranium. As hereto- 
fore, I find no indications of vertebra, but along one side of the ventral 
scutellation, a series of slender ribs lies in the matrix. These I have not 
previously found in this genus. The cranial surface is only preserved on 
the lateral portions. Its sculpture consists of coarse grooves closely placed, 
directed outwards and forwards. 
