420 



GEOGRAPHICAL ZOOLOGY. 



[part IV. 



Family 19.— EANID^. (26 Genera, 150 Species.) 



General Distiueutiox. 



Nf.otropical 



St;B-REGIONS. 



Nearctic 

 Sub-regions. 



Pal.earctic 

 Sub-regions. 



Ethiopian I Oriental I Australian 



SuB-RtGI0N8. SuB-REOIONS. Sub-REGIONS. 



1.2.3.4 1.2.3.4 1.2.3.4 1.2.3.4 1.2.3.4 1.2 



The EanidcG, or true Frogs, are characterised by having simple 

 undilated toes, but neither neck-glands nor dilated sacrum. 

 They are almost cosmopolitan, extending to the extreme north 

 and south from the North Cape to Patagonia, and they are equally 

 at home in the tropics. They are perhaps most abundant in 

 South America, where a large number of the genera and species 

 are found; the Ethiopian region comes next, while they are 

 rather less abundant in the Oriental and Australian regions ; the 

 Nearctic region has much less (about 12 species), while the Palav 

 arctic has only five, and these two northern regions only possess 

 the single genus Rana. The genera are distributed as follows : — 



Rana (60 sp.), ranges all over the world, except Australia and 

 South America, although it extends into New Guinea and into 

 Mexico and Central America ; it is most abundant in Africa. 

 Ryxiccphalus (7 sp.), extends over the whole Ethiopian region, 

 Hindostan, the Himalayas, and Japan ; Cystiynathus (22 sp.), 

 is mainly Neotropical, but has three species Ethiopian. All the 

 other genera are confined to single regions. The Neotropical 

 genera are : — Odontophryiius (1 sp.), Pseudis (1 sp.), Fithecopsis 

 (1 sp.), Enso]}hleMs (1 sp.), LimnocJiaris (1 sp.), Hcimphr actus 

 (1 sp.), all Tropical South American east of Andes ; Ceratoi^lirys 

 (5 sp.), Panama to La Plata ; Cydormn])lius (1 sp.). West Ecuador 

 and Chili ; Pleurodema (6 sp.), Venezuela to Patagonia; Leiuperus 

 (12 sp.), Mexico and St. Domingo to Patagonia ; Hylorhina 

 (1 sp.), Chiloe. The Australian genera are : — Myxophyes (1 sp.), 

 Queensland ; Platyplectrum (2 sp.), Queensland and West Aus- 

 tralia ; Ncobatrachus (1 sp.), South Australia ; Limnodynastes 

 7 sp.), and Crinia (11 sp.), Australia and Tasmania. The 



