MASTODONSAURIDJ?. 1-55 



Trematosaurus brauni, Burmeister '. 

 Syn. Labyrinthodon brauni, Owen 2 . 



The type species. Skull with an average length of 0,240, and a 

 width posteriorly of 0,130 ; orbits situated midway between the 

 muzzle and the occiput. 



Hah. Europe (Germany). 



The following specimens are from the Bunter (Lower Trias) of 

 Bemburg, Northern Germany. 



40042. The imperfect cranium of a small individual. The muzzle 

 is wanting, but the orbital and postorbital regions are 

 well preserved, and exhibit the sculpture and lyra very 

 distinctly. Purchased, 1866. 



36354. The imperfect cranium of an adult individual. The muzzle 

 is wanting, and only the inner lamina of the cranial bones 

 remains. This specimen agrees in size with the one figured 

 by Burmeister, op. cit. pi. i. Purchased, 1862. 



36369. An imperfect adult cranium. The muzzle is broken off, and 

 only portions of the cranial bones remain. 



Purchased, 1862. 



36360. A smaller imperfect cranium. The muzzle is wanting, but 

 most of the cranial bones remain, with the loss of the 

 sculpture. The palate is concealed. Purchased, 1862. 



42810 a. An imperfect adult cranium, with the counterpart in 

 matrix. The muzzle is wanting, and the greater portion 

 of the cranial bones is adherent to the matrix of the 

 counterpart. Purchased, 1871. 



36374. A small imperfect cranium. Portions of the sculpture 

 remain, and the contour of the right epiotic cornu and 

 auditory notch is well shown. Purchased, 1862. 



36356. The parieto-occipital region of an adult cranium, showing 

 the sculpture. Purchased, 1862. 



36357. A nearly similar specimen, without the sculpture. 



Purchased, 1862. 



1 Labyrinthodonten aus dern bunten Sandstein, pt. i. p. 69 (1849). 



2 Paleontology, 2nd ed. p. 215 (1861). 



