32 BULLETIN 160, UNITED STATES NATIONAL MUSEUM 



through various shades of brown, including yellowish, 

 Beddish, or even blackish, and sometimes greenish olive; 

 upperparts with or without large black insuliform spots, 

 which when present are usually edged with pale yeUow; a light 

 vertebral line occasionally visible; arms and legs of im- 

 mature individuals usually banded with dark brown; under- 

 parts dingy white or yellow; first finger longer than second; 

 toes half or two-thirds webbed; double subarticular tubercles 

 on distal phalanges of fourth toe; a distinct tarsal fold; 

 head-and-body length, 115 to 185 mm marinus (p. 53) 



4. Inner metatarsal tubercle large and shovellike, with sharp, 



horny, and usually black edge 5 



Inner metatarsal tubercle neither large nor shovellike nor with 



sharp cutting edge 7 



5. Coloration of upperparts leopardlike, with conspicuous blotches, 



which vary from green to brown, margined with white or pale 

 yellow; a bony elevation or boss between and considerably 

 above level of nostrils, from which thick, blunt-edged cranial 

 crests diverge backward; postorbital crest thick; interorbital 

 region narrower than upper eyelid; reniform parotoid gland 

 almost in contact anteriorly with postorbital crest; first 

 finger longer than second; toes one-half webbed; double 

 subarticular tubercles on distal phalanges of fourth toe; a 

 thick tarsal fold or ridge; head-and-body length, 65 to 



95 mm cognatus (p. 41) 



Coloration of upperparts not leopardlike 6 



6. A light vertebral streak extending from transverse interorbital 



band to vent; upperparts generally grayish or dull yellowish 

 brown, conspicuously blotched with a darker color or with 

 scattered spots; limbs obscurely barred; underparts light yel- 

 lowish, with or without black markings on breast; largest 

 warts red tipped and encircled at base with narrow black bor- 

 der; cranial crests distinct, but not high; canthus rostralis 

 generally distinct; interorbital space either concave or convex, 

 depending upon approximation of supraciliary crests, which 

 may either parallel one another or diverge slightly posteriorly; 

 parietal crests generally lacking, but supraciliary crests may 

 be thickened at their posterior extremities; transverse post- 

 orbital crest forms right angle with supraciliary crest; a well- 

 developed preorbital, a less distinct orbito-tympanal, but no 

 supratympanic crest; parotoid glands in contact with post- 

 orbital crests, about twice as long as broad, their maximum 

 diameter being longer than length of orbit; tympanum oval, 

 higher than wide, and equal to half or more of length of orbit; 

 toes one-third webbed; inner metatarsal tubercle large, with 

 free cutting edge; subarticular tubercles on distal phalanges 

 of fourth toe single or double; tarsal fold indistinct or 



absent; head-and-body length, 80 to 115 mm woodhousii (p. 72) 



No light vertebral streak; coloration of upperparts generally 

 light greenish gray or brown, irregularly spotted with darker 

 oolor; interorbital Ught band occasionally present; top of 

 xiead without or with poorl}' defined cranial crests; paro- 

 toid glands reniform in outline, in contact anteriorly with 

 postorbital crest or upper eyelid; tympanum generally more 

 than half the diameter of orbit, rarely indistinct and par- 



