90 U.S. NATIONAL MUSEUM BULLETIN 2 88 



large, its greatest diameter equal to that of eye, separated from eye 

 by an interval equal to one -third its own diameter. Fingers long, 

 slender, the first and second fingers with short lateral ridges, free, 

 first finger opposable to and shorter than second, fourth longer than 

 either, reaching to base of penultimate phalanx of third ; tips of fingers 

 not enlarged; a flat oval thumb pad present; a smaller round palmar 

 callus; metacarpal tubercles small but well developed. Toes entirely 

 webbed, third toe longer than fifth, whose tip reaches to center of 

 penultimate phalanx of fourth; toe disks slightly bulbous; a heavy, 

 crescentic inner metatarsal tubercle, not hooked; no outer one; a 

 thick tarsal ridge, ending near heel; a heavy skinfold on heel and 

 knee. Body stout, in postaxillary region equal to greatest width of 

 head. When hind leg is adpressed, heel reaches tip of snout; when 

 limbs are laid along the sides, knee and elbow overlap; when hind 

 legs are bent at right angles to body, heels touch. Skin of upper parts 

 heavily glandular, but without granules except for a few small in- 

 distinct ones on sacrum; venter smooth, with fine transverse skin- 

 folds across throat, chest, and belly; a thick glandular ridge from 

 posterior corner of eye above tympanum, continuing above shoulder 

 and fading out behind the level f axilla; no heavy skinfold across 

 the chest; no ventral disk; no external vocal sacs in the male. 



Dimensions. — Head and body, 51 mm.; head length, 14.5 mm.; head 

 width, 17.5 mm.; femur, 26 mm.; tibia, 27 mm.; foot, 25 mm.; hand, 

 15 mm. 



Color in alcohol. — Top of head and back slate color with indistinct 

 darker spots in irregular rows, one near midline, the other in dorso- 

 lateral area; upper surfaces of limbs smoke-gray, the femur and tibia 

 with indistinct darker bars; venter olive-buff, with some small gray 

 spots on throat, more definitely aligned along center of chest; a light 

 irregular triangular spot outlined with dark gray below attachment of 

 shoulder; belly immaculate olive-buff; lower limb surfaces pale buff, 

 with a heavy gray reticulation on lower femur, enclosing round, oval 

 and sometimes irregular pale areas, and a wide pale stripe above this 

 reticulation along anterior surface of femur; lower part of tibia and 

 top of foot pale, with a few thin gray vermiculations; posterior sur- 

 face of femur slate-black with numerous small rounded white spots; 

 a larger white patch below anus, preceded by a longer transverse one 

 reaching almost to middle of femur; upper lip smoke-gray with a few 

 faint darker spots, then merging with the slate color of loreal and 

 subocular regions; soles of feet pale gray on three inner toes, slate 

 color on outer two, the webs pale but finely vermiculated with slate, 

 palms of hands pale smoke-gray on inner two fingers, dark on outer 

 two; sides of body slate above, pale olive-buff below, with a few small 

 pale dots invading the slate area. 



