NATURAL SCIENCES OF PHILADELPHIA. 123 



This is the fourth species of the genus Osteocephalus, Fitz, and 

 differs from those previously known in the absence of palmation 

 of the fingers, weaker cranial crests, straight canthus rostralis, etc. 



From Nauta. 



Scytopis funereus, sp. nov. 



Vomerine teeth in short fascienti between the choan?e. Fingers 

 free. Head oval, muzzle narrowed; eyes small, diameter equal 

 length to muzzle and less than frontal width, twice diameter of 

 tympanic membrane. Hind limbs long, the heel extending to con- 

 siderably beyond the end of the muzzle. First (inner) toe nearly 

 free; longest webbed to base of penultimate phalange. Areola- 

 tion of belly fine, back with a very few scattered elevations. Dark 

 brown or blackish with a broad black cross-band between the eyes 

 and several across arm, femur, tibia, and tarsus. Femora uniform 

 behind ; a few black spots on the posterior part of the side. 

 Throat and breast black punctated. 



M. 



Length of head to angle of lower jaw 013 



" of head at angle of lower jaw 015 



" to vent 044 



Width of sacrum. 008 



Length of hind leg 073 



" " foot 030 



" " taraus 013 



Distinguished from other species of the genus by its long lec;?^. 



From Mo3'abaraba, Peru. 

 Scytopis allenii, Cope, Proceed. Amer. Philos. Soc. 1869, p. 162. 



From Nauta and Moyabamba. , 



Scytopis cryptanthus, sp. nov. 



Allied to the last species, but with non-elongate flat head, and 

 different coloration. The head is a long oval, and the diameter of 

 the e^'e is only three-fifths the length from its border to the ex- 

 ternal nostril, about .15 the interorbital width, and one and one- 

 half times that of the membranum tympani. Vomerine teeth 

 between nares. The heel of the extended hind limb marks the 

 half the distance from orbit to end of muzzle. Fino-ers and first 

 toe free. Uniform dark brown above, sides and gular region brown 

 speckled. Groin and concealed surfaces of hind limbs black, with 

 brillant yellow spots, three on the under side of the tibia, two on 



