903 
THE ANATOMY OF AXOLOTLS. 
NO. 419.] 
Catalogue Number. 
Chin to tip of tail... . +» - 
Chin to margin of gular fold . 
Chin to post. edge of cloaca . 
Snout to level of bases of in- 
ner gills : 
Greatest diameter of head . 1 
Width of mouth . os 
Distance between nostrils. . 
Distance between centers of 
eyes. 
Width of head at eyes . 
Snout to line joining centers 
of eyes . 
Length of filamentous border 
of gill I 
Length of filamentous border 
of gill 2 
Length of filamentous border 
Length of arm . uw ed 
Greatest height of dorsal fin : 
dà 
