256 REPTILES AND BATRACHIANS 



mountain lakes of the Pyrenees, which are suppKed with 

 running glacier water. The body is stout and crestless, 

 while the tail, which is as long as the head and body in 

 the female, shorter and thicker in the male, is destitute of 

 a regular crest, being merely keeled above. The general 

 colour of the upper-surfaces is dark olive, uniform, or with 

 yellowish spots, which may be confluent into a broad 

 vertebral line ; the lower parts are orange, with black spots. 



Breeding takes place in the middle of summer. 



The Pleurodele Newt, M. zvaltlii, of Spain, Portugal, 

 and Morocco, which is very aquatic, thriving for as many 

 as twenty years in captivity, is remarkable in having long 

 and pointed ribs which, especially in the case of young 

 specimens, frequently perforate the skin. The head is 

 roundish and very much depressed. The body and tail 

 are crestless ; the latter, which is longer than the head and 

 body, is keeled above. The upper parts are olive, the lower 

 surfaces yellow, with blackish markings. 



Gadow states that he has caught these newts in Southern 

 Spain and Portugal in rain-water cisterns, into which they 

 fall and are unable to get out again. 



Tylototriton, of Eastern Asia, differs from Molge in 

 certain anatomical features. 



In T. verrucosus, of the mountain regions, Yunnan, and 

 of the Eastern Himalayas, the skin is covered with large 

 tubercles, and the very broad and much flattened head is 

 provided with a pair of large parotoid glands ; sixteen 

 knob-like tubercles are situated on each side of the body. 

 A broad and very prominent vertebral ridge is produced 

 by the great development of the spinous processes of the 

 dorsal vertebrae. 



But for the lower edge of the tail, which is orange or 



