NATURAL SCIENCES OP PHILADELPHIA. 357 



nal, its nasal suture longest, the others shorter in the following order, frontal, 

 rostral, fronto-nasal. Nostril between first upper labial and nasal : one frenal, 

 one subocular resting on the third, fourth and fifth superior labials ; of these, 

 the sixth and last is longest. Five temporals, two supraorbitals. Frontal 

 much longer than broad, eight-sided, as follows : longest, occipital, then su- 

 praorbital, internasal, frontonasal, interoccipital. Five inferior labials, a 

 small symphyseal, a mental longer than broad ; three infralabials on each 

 side, the anterior two very large, the first of each series extensively in con- 

 tact ; a cross row of eight gular plates, the median pair largest. One pair of 

 sternal shields. Four preanals, the anterior subtriangular, the posterior nar- 

 row. Length of head, 3*5 lines ; of body and neck, 2 inches 3 lines ; of tail, 

 ?3 inches 6 lines ; total ?6 inches. 



General color plumbeous, the scales margined with black ; head cinereous. 

 A light brown band extends along each side of the back, separated from its 

 fellow by four rows of scales. Truando river region. (4324.) 



This species seems to indicate a necessity for dispensing with Tschudi's 

 name Microdactylus for the Chalcides schlegeliiof Dum. Bibr. unless the 

 latter animal can be generically distinguished by some other peculiarity than 

 the number of its digits. While it possesses three digits on all the feet, and 

 the B. cuvieri four, (usually) the pallidiceps has four anterior and 

 three posterior. Chalcis heteropus of Lichtenstein and Von Martius, 

 judgiug from the name, must exhibit a similar peculiarity. I have not been 

 able to see their description. 



Batkachia. 

 Cystignathus poecilochilus Cope, Pr. Ac. N. Sci. Phila., 1S62, p. 156. 



No. 4347. 

 Craugastor hallowellii Cope, I.e., p. 153. 



Craugastor pulchrigulus Cope. 



Distal end of tibia reaching beyond muzzle ; feet one-fourth webbed. Head 

 elongate, muzzle subtruncate. Teeth in straight lines behind the internal 

 nares ; tongue broad oval, entire. Dark-brown, white spots on hinder face of 

 femur. Sides and gular region shaded with dark-brown ; a bright yellow band 

 beginning on the intermaxillary region, extends to the thorax. A light spot 

 under the eye. Length of head and body 10 lines. Truando, 4354. 



? Otilophus margaritifer, Cuv. young, 43378, '40 1. Truando. 

 Chilophryne conifer a Cope, Pr. A. N. S. Phila., 1862, p. 156. Turbo. 

 Phrynoidis intermedins Cope. Bufo intermedins Gthr., Catal. Brit. Mus., 



p. 140, Carthagena. No. 4350. 

 Bufo s i m u s Schmidt, Denkschr, Acad. Wiss. Wien, 1858, p. 254. No. 4339. 



Truando. 

 In our specimen the toes are very slightly webbed, and not at all margined ; 

 there is a short acute tubercle on the inner face of the tarsus. The tym- 

 panum is visible, though indistinct. The warts on the back, nape, and head, 

 are very numerous, especially on the latter two regions, where some are linear. 

 There is a short reddish median line on the coccyx. The belly is pied, black- 

 ish and ? white; gular region black, with a white median vitta. A large vocal sac. 



Rhaebo haematiticus Cope. 



Bufo hcematificus Cope, 1. c, 157. 

 The Dumerilian genus Bufo has been subdivided by Dr. Fitzinger, of Vienna, 

 into several groups, to which he has given names. That that genus is a union 

 of several I do not doubt, but that they are as numerous as Dr. Fitziuger indi- 

 cates, I cannot perceive. The following table exhibits the relative characters 

 of those that seem to be recognizable. Calophrynus is introduced on the 

 authority of Dr. Gunther : 



1862.] 



