252 



HYLIML 



lateral line on the body; a whitish cross-streak above 

 the vent; a whitish oi* pale golden line along the 

 inner edge of the tibia and the outer edge of the 

 tarsus, metatarsus, and fifth toe ; back of the thighs 

 often yellow or pale orange, uniform or speckled with 

 brown. This form inhabits the south of France, 

 Italy, the Pyrenean peninsula, the Balearic Islands, 

 North-west Africa, Madeira, and the Canary Islands. 

 A further variety (immacidata, Bttgr.*) has been 

 described from China, but as it lacks the web between 

 the fingers it cannot be united with H. arbor ea. Var. 

 orientalis, Bedr., from Russia, and var. molleri, Bedr., 

 from Portugal, I would regard as not sufficiently 

 distinguished from the typical form ; and the var. 

 intermedia, Blgr., may be merely a mongrel. I shall 

 therefore limit myself to remarks on the value of the 

 characters of the vars. savignyi and meridionalis, 

 which have been regarded by some authors as distinct 

 species. But before doing this it is desirable to give 

 detailed measurements of specimens of the typical 

 form and the two principal varieties. 



Measurements 



(in millimetres). 



Forma typica. 



* Ber. Senck. Ges., 1888, p. 189, and 1894, p. 140. 



