Mr. G. Lewis on ErotylidEey^-om Japan. 53 



Hyla Cojpii. 



Tongue circular, nicked and free behind. Vomerine teeth 

 in two short transverse groups in the middle between the 

 choanjB. Head broader than long, rather strongly depressed ; 

 snout rounded, as long as the diameter of the orbit ; canthus 

 rostralis very feebly marked ; loreal region concave ; inter- 

 orbital space as broad as the upper eyelid ; tympanum very 

 distinct, half the diameter of the eye. Fingers free, toes 

 three-fourths webbed ; disks smaller than the tympanum ; 

 subarticular tubercles moderate ; a very distinct fold along 

 the inner side of the tarsus. The tibio-tarsal articulation 

 reaches the eye. Upper surfaces with small smooth warts ; 

 lower surfaces (gular sac included) closely granulate ; a 

 strong fold across the chest. Greyish olive above, with more 

 or less distinct darker spots or marblings on the head and 

 body, and cross-bands on the limbs ; hinder side of thighs 

 with small brown mottlings ; front half of throat brown. Male 

 with a large external gular vocal sac. 



From snout to vent 42 millim. 



Two male specimens from El Paso, Texas. 



This species, which I have pleasure in dedicating to the 

 celebrated American herpetologist, resembles H. versicolor^ 

 from which it is at once distinguished by the absence of web 

 between the fingers. 



VI. — A List of fifty Erotylid^yrom Japan, including thirty- 

 five new Species and four new Genera. By Geoege Lewis, 

 F.L.S. 



The first descriptions of Japanese Erotylid^ were published 

 by Mr. G. R. Crotch in 1873 j and since then, as the country 

 has been gradually opened for inland travel, species have been 

 added from time to time until the present day, when the list 

 contains fifty species. Marseul's Catalogue for Europe gives 

 twenty- three species, and Heyden's for Siberia twenty-four j 

 but the last and the present list can have no pretention to 

 completeness. The majority of the known Erotylidse are 

 from the New World. 



Japan is a country which is in many ways favourable to 

 the group, as the damp elevated forests which occupy large 

 areas in the mountainous districts produce quantities of fungi 

 from the early days of spring to the last days of autumn. 



