193 



Eleutherodactylus persimilis, sp. no v. 

 Plate 14 (type, upper left-hand figure) . 



Type.— No. 11598, Museum of Comparative Zoology, from Suretka, Costa 

 Rica, near the boundary of Bocas del Toro Province, Panamd. Collected 

 July-August, 1923, by Professor E. R. Dunn and Mr. Chester B. Duryea. 

 There are several paratypes, Nos. 11599-11610. 



Diagnosis. — A very small representative of the rhodopis group which seems 

 to differ from its many and puzzling allies in proportions and coloration. 

 Body short and fat, limbs short and heavy. 



Description. — Tongue round, large, unemarginate behind; vomerine teeth 

 in two small round groups between the choanae, widely separated one from 

 the other; nostrils very near tip of snout; upper eyelid much narrower than 

 interorbital space; tympanum large, round, distinct, about two-thirds diameter 

 of eye, its distance from latter about two-thirds its own diameter; no discs 

 on fingers, very small expansions only of the tips of the toes; first finger shorter 

 than second; first toe short, only reaching subarticular tubercle of the second; 

 subarticular tubercles on fingers and toes very well developed; two well- 

 developed metatarsal tubercles; many small plantar tubercles; a moderately 

 developed tarsal fold; the hind limb being extended along the body, the tibio- 

 tarsal articulation reaches the anterior border of the eye; the hind limbs being 

 flexed vertically to body axis, the heels do not meet; limbs short and stout; 

 skin above finely granular; below coarsely granular, especially the posterior 

 aspect of femur. 



Color. — Light or dark gray, with dorsal markings symmetrically arranged 

 (cf. plate); be^neath clear white; a sharp dark bar from posterior margin of eye 

 over tympanum always present; heels and posterior aspect of tarsus dark 

 brown, sharply defined; a black dot on each side of vent; also a dark streak 

 along posterior aspect of thigh. Rather uniform in coloration. 



Measurements. — Total length, tip of snout to vent, 17.5 mm.; width of 

 head, 6.5 mm.; length of fore limb, 7.5 mm.; length of hind limb, from vent to 

 tip of longest toe, 24 mm. 



Having found, in a recent collection from Colombia, a Crypto- 

 batrachus that appeared distinct from the Santa Marta Mountain 

 specimens presented to the Museum of Comparative Zoology by 

 the Museum of Zoology of the University of Michigan, I sent it 

 to my friend Dr. A. G. Ruthven for examination. He and his 

 colleague, Mrs. Caige, have very kindly compared our example 

 with their fine material from Santa Marta, and agree that this 

 specimen seems to represent a distinct form. They point out, 

 and very correctly, that it would be desirable to examine Perac- 

 ca's type, which came from Guaca (altitude 1600 meters) in the 

 Cordillera Central of Colombia. It is by no means impossible 

 that it is the Santa Marta material which needs naming. This 

 comparison cannot now be made, and therefore it seems desirable 

 to indicate that there is another form in western Colombia. Dr. 

 G. K. Noble states that Cryptobatrachus is a pure synonym of 

 Hyloscirtus Peters, but I incline to consider this as unproved, 

 following Dr. Ruthven. 



The new form may be called : 



Cryptobatrachus incertus, sp. nov. 



Type. — No. 11616, Museum of Comparative Zoology, from Sons6n (altitude 

 2545 meters), Dept. of Antioquia, Colombia. From the Rev. Brother Nic6foro 

 Maria, of the College of La Salle, Bogota. 



