72 SALAMANDEID^I. 



Limbs weak ; digits palmate to the tips. Tail long, swollen at the 

 base, a vertical oval in section. Skin smooth, porous; thirteen 

 costal grooves. Uniform dark brown. 



Total length 82 millim. 



Head and body 40 „ 



Head 7 „ 



Width of head 5 



Fore limb 7 „ 



Nauta, Upper Amazon. 



17. Spelerpes yncatanicus. 



Palatiue teeth in two slightly arched series meeting in the middle, 

 not extending outwards beyond the choanae, separated from the 

 parasphenoid teeth ; latter in a single, pyramidal patch. Head 

 small, depressed, longer than broad ; snout rounded, without canthus 

 rostralis ; eye moderately large. Body rather depressed, elongate, 

 measuring thrice and a balf the distance from snout to gular fold. 

 Limbs weak ; fingers entirely united. Tail thick, cylindrical, as 

 long as head and body. Skin smooth, porous ; gular fold distinct ; 

 twelve costal grooves. Blackish brown ; upper surfaces sprinkled 

 with grey, lichen -like ; lower surfaces with grey specks, some of 

 which are confluent into short longitudinal lines. 



Total length 107 millim. 



From snout to cloaca 56 „ 



Head 10 „ 



Width of head 7| „ 



Fore limb , 12 „ 



Hind limb 13 „ 



Tail 51 



Yucatan. 



a. $ . Yucatan. 



18. Spelerpes infuscatus. 



Spelerpes (Oedipus) infuscatus, Peters, Mon. Berl. Ac. 1879, p. 778. 



Palatine teeth series extending outwards beyond the choanae, sepa- 

 rated from parasphenoid teeth; latter in a single patch. Body elongate; 

 length of head and body equals seven times the width of the head. 

 Limbs weak ; digits entirely webbed. Gular folds distinct ; thirteen 

 costal grooves. Brown, sides blackish. 



Total length (tail injured) 43 millim. 



From snout to cloaca 21 „ 



Head 4| „ 



Width of head 3 „ 



Fore limb 4 



Hind limb 4 



Hayti. 



