Reviews — Dr. Fritsch's Permian Amphibia of Bohemia, 81 



wLich are long-tailed lizard-like animals, usually with elongated 

 epiotic horns, and tail vertebra3 devoid of ribs, but with the upper 

 and lower spinous processes expanded in fan-like form. The genus 

 TJrocordylus, which was established by Huxley and Wright, has the 

 head triangular, blunt in front, and truncated behind, with the cranial 

 bones covered with round pits, which suggest those on the skulls of 

 crocodiles. The strong tail includes about 80 vertebree. The strong 

 ribs are double-headed, and about three times as long as the vertebrae. 



Fig. I. — Restoratiou of TJrocordylus scalaris (Fritsch). 

 The thin shield-shaped thoracic plate is expanded in front. The 

 lateral thoracic plates are broad and spoon-shaped. The abdominal 

 scales are smooth and elliptical. The feet are five-toed ; the hinder 

 limbs are longest. The Urocordylus scalaris of Fritsch is distin- 



DECADE III. YOL. II. — NO. II. 6 



