64 On a new Labyrinthodont Amphibian from Newsham. 
In the large size of the coronal bones, Batr veut 
also shows an alliance with Siren and Axolotl, while, in the 
squareness of the occipitals and parietals it agrees with the 
Salamander and the Batrachians. But, notwithstanding these 
deviations from the usual ponerent there can be little doubt 
that our new form is a true Labyrinthodont; for the lateral 
cranial expansions, though more developed than commonly, 
are very similar to those characteristic features of these am- 
phibians. And the parietal foramen is most significant, as 
well as the stoutness of the teeth; and the row of strong vo- 
merine teeth on each side is also characteristic. 
= shows its pree to Siren by the reduction of tho 
ateral cranial expansions, Batrachiderpeton d the large de- 
EXPLANATION OF PLATE I. 
Fig. 1. Dorsal view of the cranium of Batrachider, p — a little 
enlarged; the iia ed me —G the restored parts: a, occi- 
b LÀ 
> e, lateral expansion; f, one e outer cornua; g, sup 
pons xillæ, indicated in outline, in their supposed 
a iind positio n; 5 orbits indicated by pius ines. 
of the same: a, 
e outer com E^ ft malar; d, right Maddie, ben inwards ; 
e, right pre semet doubled inwards ; , free e posterior paar. 
of ditto; g, teeth of the left premaxi a, bent inwards ; h, hen 
sida ed with minute teeth ; di, two lateral rows of large 
e teeth ; j, pterygoid; Æ, an eminence, probably the phenol 
it ra elevations, perhaps portions of the sphenoid, or possibly 
