418 



GEOGRAPHICAL ZOOLOGY. 



[part IV 



Family 16.— PELODUYAD^. (3 Genera, 7 Species.) 



General Distribution. 



The Pelodryadae are Tree Frogs with neck-glands, and are 

 confined to the Australian and Neotropical regions. The genera 



are 



Phyllomedusa (3 sp.), South America to Paraguay ; Chirodryas, 

 Australia ; and Pelodryas (3 sp.), Moluccas, New Guinea and 

 Australia. 



Family 17.— HYLID^. (11 Genera, 94 Species.) 



General Distribution. 



The Hylidfe are glandless Tree Frogs with a broadened sacrum. 

 They are most abundant in the Neotropical region, which con- 

 tains more than two-thirds of the species ; about twenty species 

 are Australian ; six or seven are Nearctic, reaching northward to 

 Great Bear Lake ; while one only is European, and one Oriental. 

 The genera are : — 



Hyla (62 sp.), having the range of the whole family ; Rylella 

 (1 sp.), Ololygon (1 sp.), Pohlia (2 sp.), Triprion (1 sp.), Opistho- 

 delphys (1 sp.), and Nototrema (4 sp.), are South American ; while 

 Trachycephalus (8 sp.), is peculiar to the Antilles, except one 

 South American species ; Pseiidacris (1 sp.), ranges from Georgia, 

 United States, to Great Bear Lake ; Litoria (7 sp.), is Australian 

 and Papuan, except one species in Paraguay ; Ctratohyla (4 sp.), 

 is only known from Ecuador. 



