10 
MR. W. K. PARKER OK THE STRUCTURE AND 
in the “Batrachia Salientia” are now put into the genus Rappia ) ; they are 
narrow-backed Tree-frogs. 
32. Ilyperolius marmoratus, Gray, sp.— Adult female, If inch long. Paramatta, 
Australia. 
I. A. a. 6. —Sixth Family. “ Bombinatoruae.” 
This type has dilated sacral apophyses but no parotoids, it has ribs, and abnormal 
(opisthoccelian) vertebrae, hut no columella, or tympanic cavity. 
Genus Bombinator. 
33. Bombinator igneus, Rosel, sp.—Adult female, if inch long. Europe. 
I. A. a. 7. —Seventh Family. “ Pelobatuue.” 
The last has one of the softest, this has one of the hardest, skulls. There is no 
cavum tympani, but there is a small bony columella. There are no ribs, and the 
vertebrae are proccelian ; it has a broad sacrum, but no parotoids. 
Genus Belobates. 
34. Pelobatus fuscus, Laur., sp.—Adult male, 2 inches 5 lines long. Europe. 
I. A. b. — With dilated digital disks. 
First sub-division of Tree-frogs. 
First Family. “ Polypedatide.” 
Ear perfect. Sacral apophyses cylindrical. “ Omosternum ” with a bony shaft 
(Mivart, p. 292). “No parieto-frontal fontanelle ” (except in such small types as 
the Australian Rappia bicolor). No neck-glands. 
First genus. Polypedates. 
35. Polypedates chloronotus, Gthr. (see P. Z. S., pp. 567-576, plate 65, fig. A). 
Adult male, 2 inches long (Gunther gives the length of the body in the 
male as 51 millims., and of the female 93 millims ; p. 570). India. 
36. Polypedates maculatus, Gray, sp.—Adult male, 2 inches 1 line long. India.' 
Second genus. Rhcicophorus. 
37. Rhacophorus maximus, Gthr. —Adult male, 3f inches long. N. India. 
Third genus. Ixalus. 
38. Ixalus variabilis, Gthr. —Adult female, 1 inch 1 line long. Ceylon. 
