116 PROCEEDINGS OF THE ACADEMY OP 



Cranium with the curved orbital margiu elevated into a ridge, and con- 

 tinued into a strong suiiratympanic ridge ; a short preorhital ridge, no postor- 

 bital. Parotoid gland divergent towards the sides, elongate triangular nar- 

 row, continued into a lateral dermal fold. Two metatarsal tubercles, both 

 small; a smooth-edged tarsal fold. Tympanum distinct, less than half diame- 

 ter of eye. A trace of a parietal branch ridge on cranium. Canthus rostralis 

 very strong, concave short. Muzzle elevated, profile vertical, not as long, in 

 a straight line, as the long diameter of eye fissure. Nostril terminal. Greatest 

 width of head 2 6 times in length head and body ; length foot without tarsus 

 2-75 in same. Hind foot, outer toes with last phalanges only free ; 3i of medi- 

 an free. Heel to hinder edge orbit. Skin covered with small round tubercles 

 above. Palms and soles rough, and limbs generally, metacarpus with two 

 strong tubercles. Half the femur included in the skin of the body. 



Gray above, with small paired dark-brown spot on each side the median 

 line ; these are more or less confluent, and have a few smaller spots external 

 to them. Sides below lateral fold brown-marbled. Lip with two brown spots 

 on each side, a large brown spot on each side tympanum. A brown band 

 across eyelid and verter. Pale below, with brown blotches on breast and 

 belly. 



Lin. Lin. 



Length head and body 19-5 Length tarsus 45 



" " includ. tympanum... 5-4 " long toe 7-5 



" tibia 7-4 " hind limb 23- 



Several specimens (Xo. 6712) from the valley of Quito. Originally brought 

 from Carthagena, New Greuada. (No. 4350 Mus Smithsonian.) 



This species is nearest the B. a g u a. It differs in its very much smaller 

 size, being one-eighth or tenth the bulk of the latter, in its relatively smaller 

 and narrower parotoid glands, and in its pincheil, narrow, angulate muzzle. 

 It is also near the B. d i p t y c h u s Cope, a still smaller species. In the latter 

 the toes are much less palmate, the muzzle longer and the parotoids broader. 



Bdfo agua Daud. B. marinus Schneider. 

 From the Napo and Upper Amazon. 



RAXIFORMFA. 



Atelopus longirostris Cope, sp. nov. 



The muzzle prolonged, the ethmoid cartilage overhanging the labial border, 

 and forming an acute-angled prominence. The muzzle a little longer than 

 the long diameter of the eye ball ; nostril just behind a lateral projection 

 formed by the extremity of the prefrontal. Canthus nostralis a right angle, 

 lores nearly plane, upper profile entirely plane, transversely a little 

 concave in front of the orbits. Greatest width of head behind nearly 

 one-third length from end muzzle to end coccyx. Extended backwards 

 the fore limb extends beyond the vent ; forward the hind limb meas- 

 ures to the front of the orbit with the heel. Toes about half webbed, 

 the inner quite rudimental ; fingers slightly webbed, the inner short. 

 Skin above and below entirely smooth, .a line of granular elevations 

 along the side. A faint tarsal fold; metatarsal tubercles not developed. Ostia 

 of eustachian tubes, each half an inner nostril ; latter small lateral. Tongue 

 narrow, elongate. One large round metacarpal tubercle. Total length 10-6 

 lines. From nostril to posterior extremity supratympanic ridge 3-3 lines. 

 Total length fore limb 6-6 lines; of hind do. 13-1 lines ; foot 6 lines; tarsus 3-5 

 lines ; extent of sacrum 3 lines. 



Above black ; under surfaces and upper lip yellow. A greenish spot on each 

 scapular region, and two or three pairs of the same on each side the vertebral 

 line. Femur behind yellow, with a proximal longitudinal, and two distal 

 transverse black bands. All the toes blackish, thumb yellow. 



From the valley of Quito. 



[March, 



