1887.] 4^ [Cope. 



panic membrane not distinguished. Tongue diamond-shaped with 

 rounded angles, extensively free and entire behind. No vomerine teeth. 



Hind legs long ; Avhen extended the muzzle marks a little beyond the 

 middle of the tibia. Second finger shorter than third. Toes with a der- 

 mal margin. Two metatarsal tubercles, both small, the internal larger and 

 subconical, and giving origin to a dermal fold which extends to the mid- 

 dle of the tarsus. No tarsal tubercle. Skin of upper surfaces and sides 

 witli numerous small warts. Inferior surfaces smooth. 



Color of adult dark-brown on superior and lateral surfaces, of younger 

 individuals gray. The median dorsal region is marked with a wide black 

 or dark-gray tract with undulating borders from between the eyes to the 

 end of the urostyle, and this Is again divided in many specimens by a 

 median white band which extends from the vent to the end of the muz- 

 zle. In the adult the femur has one, and the tibia has two blackish cross- 

 bands, and the superior edge of the tibia is pale-colored on its distal 

 fourth. Posterior face of femur, and superior face of humerus, pale- 

 brown. Posterior foot with numerous brown cross-bands. Below white 

 (inferior surfaces of hind legs possibly yellow in life) ; the lower lip black 

 all round, the color advancing towards the throat on each side. This 

 mark is present on all the specimens. 



M. 



Length of head and body 020 



" " " to posterior line of tympana 007 



Width " "at " " " " 037 



Length of fore limb 013 



" " foot 005 



" " hind limb from groin 0413 



" " foot 020 



" " " " without tarsus 013 



One adult and several young specimens. Readily distinguished by its 

 very long hind legs, peculiarly shaped head, etc. 



11. Palitdicola mtstacalis, sp. nov. 



Size small. Ileel of extended hind leg reaching to front of orbit. 



Muzzle a narrow oval as viewed from above, a little longer than the 

 diameter of the orbit, and not projecting beyond the lip-border. Canthus 

 rostralis indistinct. Interorbital space wider than eyelid. Gape of mouth 

 wide. Tongue narrow, extensively free, entire behind. Nostrils two- 

 fifths way from end of muzzle to orbit. Tympanic disc concealed. Second 

 finger ("first") shorter than third, which is in turn a little shorter than 

 fifth. Two large palmar tubercles. Terminal phalanges not shorter nor 

 expanded at the extremities, but obtuse. The close contact of the third, 

 fourth and fifth metatarsals gives the foot a narrow form, especially as the 

 first and second digits are short. The other digits, especially the fourth, 

 are quite slender, with elongate narrowed terminal phalanges as in Lepto- 



PROC. AMER. PHILOS. SOC. XXIV. 125. G. PRINTED APRIL 28, 1887. 



