1886.] 515 [Cope. 



BUFO HEMIOPHRYS Cope. 



Superciliary crests not distinct on the muzzle, parallel, nearly straight, 

 terminating abruptly posteriorly in a transverse elevation. The latter 

 meet on the middle line, forming a transverse ridge, with an abrupt de- 

 scent to the nape. Externally they extend but a short distance, leaving 

 no representatives of the postorbital ridges except a few tubercles in one 

 or two of the specimens. A small supratympanic tuberosity No pre- 

 orbital ridge. Muzzle vertical at end, nostrils terminal. Membranum 

 tympani a vertical oval, two-thirds the diameter of the eye. Parotoid 

 gland a narrow oval. Dermal tubercles distinguished by their small size 

 and prominence. They form several rows on the back and external face 

 of the tibia. At all other points the skin is closely areolated, the areolae 

 frequently acutely prominent, especially on the superior face of the tibia 

 and on the sides. The heel of the extended hind leg reaches to the 

 posterior border of the orbit. The posterior foot is wider than in the B. 

 lentiginosus, though not relatively shorter. The web is excavated to the 

 line of the middle of the fourth (first) phalange. The metatarsal tuber- 

 cles are especially large. The internal is very wide and prominent, and 

 has an extensive acute edge ; the external is much smaller, but it also has 

 a free cutting edge, transverse to the length of the tarsus. The length of 

 the head to the position of the postorbital crests, enters the total (to the 

 vent) four and a half times. 



The color is brown, marked on the back with a median yellowish line, 

 and two or three rows of brown spots of medium size on each side of it. 

 These spots have one or two tubercles for their center pieces, which are 

 more reddish than the rest of the spot. There are two brown spots on 

 the upper lip, and one below the tympanum. A large spot extends from 

 below the parotoid gland to near the front of the humerus. Posterior to 

 this, with a slight interval, there extends a longitudinal deep brown band, 

 which extends, with interruptions, to the groin. Below this, on the 

 sides, are other dark -brown bands, which form a more or less reticulate 

 pattern. The limbs and posterior feet have dark-brown cross-bands, and 

 there is a very coarse dark brown reticulation of brown or brownish yel- 

 low on the posterior face of the femur. The belly is more or less black- 

 spotted ; throat immaculate. 



Measurements {No. 11,927). M. 



Length of head and body 059 



" " " to posterior edge of m. tympani... 015 



Width " " at anterior " " , 023 



Length of anterior limb 034 



foot ..014 



" " posterior limb 068 



" tibia 020 



" " tarsus 010 



" " rest of foot 025 



Besides the peculiarities of the head crests, and metatarsal shovels, this 



PROC. AMER. PHILOS. SOC. XXIII. 124. 3n. PRINTED NOV. 2, 1886. 



