22 CADUCIBRAXCHIATA. 



phiccelous; carpus and tarsus cartilaginous; pelvic and 

 pectoral limbs well developed: anterior digits four; 

 fourth finger with three phalanges. 



Branchial apertures persistent.. . .Menopoma. (i) 



Branchial apertures closed in adult. 



Cryptobranchus. (2) 



1 Menopoma. 



Palatine teeth in a parabolic curve between the inner 

 nares almost parallel to those of the maxillarv: tongue 

 transversely oval; head depressed; eves small; parotids 

 none ; branchial apertures upon the side of the neck per- 

 sistent; skin naked; limbs short and thick; toes four in 

 front and five behind, the latter membranous; tail com- 

 pressed shorter than the bodv. 



Menopoma Alleg-hanensis, Harlan (12, 6j 



HELL-BENDER OR MUD-DEVIL. 



Synonyms, Protonopsis horrida, Barton, Barnes, Cope; 

 Abranchus Alleghanensis, Harlan; Cvptobranchus sala- 

 mandroides, Leuckhart ; Eurvcea macronata, Rafin- 

 esque ; Molge gigantea in part Merrem ; Menopoma fus- 



