Cope.] ^ i ^ [Nov. 20, 



muzzle is rather acuminate and projects beyond the mouth. The canthus 

 rostralis is distinct and concave. The skin is perfectly smooth on all the 

 superior surfaces. The wrist of the extended fore limb extends to the end 

 of the muzzle ; while the heel extends a little beyond the same point. 



Length of head and body M. .029 ; of fore-leg, .017 ; of hind leg, .043 ; 

 of hind foot, .019 ; of tarsus, .009 ; of tibia, .015. 



Color above light gray, with five parallel dark- gray longitudinal bands. 

 The median band is somewhat indistinct posterior to the interscapular 

 region and in front of the sacrum. Anteriorly it expands so as to form a 

 large subtriangular spot between the eyes, the apex being posterior. The 

 femur has one cross-band ; the cubitus two, and the tibia three. Inferior 

 and concealed surfaces unspotted. 



Coll. No. 14187. 



This species is, in many technical respects, similar to the Hyla eximia, 

 Baird. The hinder legs are much longer ; the muzzle is more acuminate, 

 and the color bands are much wider. The frog is probably of a different 

 color in life. 



10. Agalychnis helen^ Cope. Proceeds. Amer. Philosoph. Society, 

 1884, p. 182. 



A larger specimen than the type, in which yellow border of the lateral 

 purple stripe, and the bars which cross it, are wider. There are also 

 traces of pale cross-bands on the back. No. 14186. 



11. Lithodytes diastema Cope. One specimen ; No. 14209. 



12. Lithodytes bransfordii, sp. nov. 



Represented by a number of individuals of small size, but which are 

 adult. The characters are well marked. The legs are short, the posterior 

 when extended only bringing the heel to the orbit. The vomerine teeth 

 are in two transverse or slightly arched series, near together well behind 

 the line of the posterior nares, and not extending exterior to the middle 

 of the latter. The tympanic disc is large, in four of the specimens equal- 

 ing the diameter of the eye-fissure, in three others not exceeding two- 

 thirds of that size. The muzzle does not project, and is slightly truncate, 

 and is about equal in length to the diameter of the orbit. The nostril is 

 nearly terminal -lateral. Canthus rostralis distinct, obtuse, nearly straight. 

 The toes are entiiely free, and the dilatations are moderate. Two meta- 

 tarsal tubercles, the inner larger. The skin of the back is thrown into 

 delicate longitudinal parallel folds, which are easily lost. 



Length of head and body, M. .0255 ; length of anterior limb, .013 ; of 

 posterior limb from groin, .030; of foot, .017 ; of tarsus, .0075 ; of tibia, 

 .012. 



In the color there is much pink on the upper and concealed surfaces. 

 There are two dark spots on the lip, one below each canthus of the eye. 

 There is a large more or less obsolete spot behind and above the axilla, 

 with an oblique posterior border. There is a dark spot on the parietal 

 region and generally one between the anterior parts of the orbits. There 



