88 "CT- S. NATIONAL MUSEUM BULLETIN 206 



slightly less than its distance from end of snout ; interorbital diameter 

 about l)i times the width of upper eyelid, which is relatively wide, 

 greater than distance between nostrils. Tympanum very small but 

 distinct, about one-third the diameter of the eye, separated from eye 

 by an interval equal to about 1% times its own diameter. Fingers 

 webbed at the base, fourth much longer than second, reaching to 

 disk of third, which practically covers the tympanic area; a pollex 

 with a very sharp needlelike spur projecting from the side of the 

 first finger; toes one-half webbed, third apparently shorter than fifth, 

 disks very small, that of fourth toe apparently covering only one-half 

 the tympanic area; a very prominent inner but no outer metatarsal 

 tubercle; no tarsal ridge; no dermal appendage on heel. Body rather 

 elongate, in postaxillary region considerably narrower than greatest 

 diameter of head. When hind leg is adpressed, heel reaches to an- 

 terior corner of eye; when limbs are laid along the sides, knee and 

 elbow apparently just touch; when hind legs are bent at right angles 

 to body, heels greatly overlap. Skin of upper parts smooth; a heavy 

 glandular ridge encircling tympanum and ending on shoulder; skin 

 of throat and chest smooth, of belly and postanal region coarsely 

 granular, of lower femur almost smooth; no apparent skinfold across 

 the chest. A pair of lateral external vocal sacs. 



Dimensions. — Head and body 39 mm.; head length 14 mm., width 

 14 mm.; femur 17 mm.; tibia 22 mm. (The forearm is very greatly 

 developed and the upper arm rather weak. It is almost impossible 

 to straighten the arm to allow measuring.) 



Color in alcohol. — The badly faded and mutilated specimen described 

 shows no trace whatever of its original color pattern, being now an 

 inmiaculate drab over its entire surface. 



Color in life. — From a sketch of type by Sandig. Dorsal ground 

 color primrose yellow fco cream color; a large, longitudinal, hourglass- 

 shaped, black-edged sepia mark on the back, its anterior borders 

 extending onto the eyelids, narrowuig above the shoulders, widening 

 at the center of the back, and having a posterolateral extension at 

 the sacrum; lateral region immaculate; a small sepia spot on tip of 

 snout, and apparently a sepia stripe along the loreal region; femur 

 deep flesh color, immaculate on its anterior and posterior surfaces 

 but with faint traces of sepia crossbars showing on its upper surface; 

 tibia and forearm cream color, with much heavier dark crossbands; 

 top of foot pale flesh color with traces of sepia; a seal-brown anal 

 patch; a black spot on the heel. Iris tawny olive, the pupil black 

 and transversely elliptic. 



Remarks. — There is a marked similarity of structure between the 

 type of H. clepsydra and examples of H. hischofi multilineata. While 



