GEOGRAPHICAL DISTRIBDTION. 119 



It may also not be without interest, in order to 

 bring out their associations, to enumerate the species 

 occurring in the environs (i. e. a radius of about fifteen 

 miles) of some of the principal towns the Batrachian 

 fauna of which has been thoroughly searched by com- 

 petent workers. It will be seen, then, that no district 

 can boast of possessing more than ten out of the 

 twenty recognised species, and that, in spite of their 

 northern position, Paris and Bonn yield to no other 

 and are richer than many more southern localities. 



1. London (three species). 



Bufo vulgaris, B. calamita, Bana temporaria. 



2. Copenhagen (nine species). 



Bombinator igneus, Pelobates fuscus, Bufo vul- 

 garis, B. viridis, B. calamita, Hyla arborea, 

 Bana escidenta, B.. arvalis, B. temporaria. 



3. Paris (ten species). 



Bombinator pachypiis, Alytes obstetrieans, Pelo- 

 dytes punctatus, Pelobates fvscus, Bufo 

 vulgaris, B. calamita, Hyla arborea, Bana 

 esculenta, B. temporaria, B. agilis. 



4. Bordeaux (nine species). 



Bombinator pachypas, Alytes obstetrieans, Pelo- 

 dytes 2^unctatus, Pelobates cultripes, Bufo 

 vulgaris, B. calamita, Hyla arborea, Bana 

 esculenta, B. agilis. 



5. Brussels (five species). 



Bufo vulgaris, B. mlamita, Hyla arborea, Bana 

 esculenta, B. temporaria. 



6. Berlin (nine species). 



Bombinator igneas, Pelobates fuscus, Bufo vul- 

 garis, B. viridis, B. calamita, Hyla arborea, 

 Bana esculenta, B. armlis, B. temporaria. 



7. Bonn (ten species). 



Bombincdor 'pachypns, Alytes obstetrieans, Pelo- 

 bates fuscus, Bufo vulgaris, B. viridis, B. 

 calamita', Hyla arborea, Bana escidenta, B. 

 arvalis, B. temporaria. 



