260 U. S. NATIONAL MUSEUM BULLETIN 206 



beyond lower; nostrils superolateral, distinctly projecting, separated 

 from each other by an interval shghtly greater than their distance 

 from eye. Canthus rostralis rounded but evident because of the 

 very concave loreal region below it. Eye large, prominent, its diam- 

 eter about Iji times its distance "from nostril, shghtly less than its 

 distance from end of snout; interorbital diameter about equal to 

 width of upper eyelid, equal to interval between nostrils. Tympanum 

 not visible. Fingers moderate in length, free, their tips rounded but 

 not enlarged, second longer than first, shorter than fourth, reaching 

 to base of penultimate phalanx of third; no pronounced pollex, but 

 both palmar tubercles well developed; subarticular tubercles moderate; 

 toes almost fully webbed except for two terminal phalanges of fourth, 

 their tips enlarged into small disks, third as long as fifth, reaching 

 halfway to base of penultimate of fourth which is rather long; sub- 

 articular tubercles prominent; an elongate blunt inner and a small 

 round outer metatarsal tubercle; a sHght glandular tarsal ridge 

 fading out midway to heel; body oval in shape, in postaxillary region 

 narrower than greatest width of head; when hind leg is adpressed, 

 heel reaches shghtly beyond tip of snout; when hind limbs are laid 

 along the sides, knee reaches to axilla; when hind legs are bent at 

 right angles to body, heels touch. Skin of upper parts slightly 

 granular, more definitely so on top of head; a weak glandular ridge 

 from posterior corner of eye to shoulder; no inguinal gland apparent 

 in this female specimen; ventral surfaces smooth, or minutely pustular 

 under the lens, with a few larger pustules across the throat; some 

 small granules behind the axilla and a few on the posterior femur. 

 No apparent skinfold across the chest. (Probably no external vocal 

 sac in the male.) 



Dimensions. — Head and body 33 mm.; head length 11 mm., width 

 14.5 mm.; femur 18 mm.; tibia 18.5 mm.; foot 16 mm.; hand 10 mm. 



Color in alcohol. — Dorsal surfaces ecru-drab suffused with seal brown 

 down center of back; snout walnut brown, with a clove-brown inter- 

 orbital band preceded by a wide pale band; upper lip drab, with three 

 of four rhomboidal dark spots; traces of dark crossbands on forearm 

 and tibia; ventral surface buff, with slightly darker marbhngs on 

 throat; upper and lower surfaces of toes and fingers with a dark spot 

 on the base of each disk; posterior femur clouded with dark suffusions. 



Variations. — The three additional examples \vith the same data are 

 smaller but do not differ otherwise. The leg is long in all of them, 

 while the web of the foot is uniformly full, that from the third and 

 fifth toes coming entirely up to the base of the respective disks. No 

 trace of an inguinal gland is found in any of these specimens, but this 

 may be due to the fact that two are immature while the others are 

 perhaps females. 



