142 



SALAMANDRADiE. 



species, has a slight enlargement towards the junction of the 

 lips. But the markings and coloration are widely different ; 

 the upper parts being beautifully marbled with grey, with 

 a white line along the mesial line of the back, and the belly 

 irregularly mottled. 



I give a comparative view of the head of Tr. cristatus 

 and of Tr. Bibronii, by a reference to which any one may 

 readily determine the species. 



