BATRACHIAANOURA. 85 



The upper part of the head, back, and limbs is yellowish-brown ; 

 the limbs are somewhat darker, blotched with blackish. There is a 

 narrow, yellow vitta extending from the occiput to the posterior part 

 of the body. On each side of this vitta, and contiguous to it, we 

 observe angular, black patches, some of which are quite large, others 

 small, extending from the occiput to the posterior third of the back. 

 The iris is golden-yello\v ; the tympanum deep-chestnut, and the 

 surrounding space black. The parotids and the glandulous, lateral 

 ridge, are yellowish. The sides of the abdomen are light-yellow, with 

 blackish-brown mottlings immediately beneath the glandulous ridge. 



This species has a general resemblance to B. ornatus, of Spix, also 

 from Rio de Janeiro, but on comparison will appear sufficiently dis- 

 tinct from the latter. 



One specimen was obtained at Rio de Janeiro, in December, 1838, 

 and a drawing made from life by Mr. Drayton. 



Plate VI, fig. 16, represents Bufo gracilis, size of life. 



Fig. 17, is a side view of the head. 



Fig. 18, an upper view of the head. 



Fig. 19, is the head seen from beneath. 



Fig. 20, under surface of the right hand. 



Fig. 21, under surface of the left foot. 



5. BUFO LUGUBROSUS, Grd. 

 (Plate VI, figs. 10-15.) 



CAR. SPEC. Capitis facie superiore sulcata. Glandulis parotidis 

 mod ids. Tympaito parvo. PUcatura membranea in tarso. Plan- 

 tarum di<ji.tis siibpulmatis. Cute glandulosa et granulata. Supra 

 sub/nyro, maculato ; infra candido-luteo. 



SPEC. CHAR. Upper surface of head grooved. Parotids moderate. 

 Tympanum small. A membranous, tarsal fold. Toes subpalmated. 

 Skin glandulous and granular. Bluish-black above, maculated. 

 Beneath dull yellowish-white. 



ST.X. Bufo luyulrosus, GRD. in Proc. Acad. Nat. Sci. Philad. VI, 1853, 424. 



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