8 MR, W. K. PARKER ON THE STRUCTURE AND 
8. R. gracilis, Wiez.— Adult male. Ceylon. 
9. R. cyanophlyctis, Schneid. (see Gunther, Kept, of Brit. Ind., p. 406).— 
Ceylon. 
10. Rctnapygmcea, Gthr. (see P. Z. $., 1875, pp. 567, 568).— Adult male, f inch 
long. Anamallays Mountains, Malabar, S.W. India. 
11. R. tigrina, Daud. —Adult female. Ceylon. 
12. R. hexadactyla, Less. —Adult female. Ceylon. 
13. R. Kuhli, Schleg. —Male, two-thirds grown. Ceylon. 
14. R. - \ sp.—Adult female. A small species, 1 inch long. Lagos, 
W. Africa. 
Second genus. Tomopterna. 
15. Tomopterna breviceps, Schneid., sp. ( Pyxicephalus breviceps in Gunther’s 
Rept, of Brit. Ind., p. 411).—(A) Half grown female. S. India. (B) Adult 
female. Ceylon. 
Third genus. Pyxicephalus. 
16. Pyxicephalus rufescens, Jerdon. —Adult male. India. 
I. A. a. 2 .—Like the last in most things, but have their toes free, or but little webbed, 
and the “ omosternum” not ossified, or even absent. 
Second Family. “Cystignathid^e.” 
First genus. Pseuclis. 
17. Pseuclis paracloxa, Linn., sp.—Larvae in four stages, and adult. S. America. 
Second genus. Gomphobates. 
18. Gomphobates (Leiuperus ) -? sp. (see P. Z. S., 1868, p. 478, same as 
Leiuperus, “ Batr. Sal.,” pp. 22 and 135).—Adult (?), 10 lines long. River 
Plate. 
Third genus. Cystignathus. 
19. Cystignathus ocellatus, var. Linn., sp.—Adult male, 5f inches long, Dominica; 
with larvae 2f and 3f inches long. Brazils. 
20. C. - ? sp.—Tadpole, 1 inch long ; tail, § inch; hind legs, 1 line. Lake 
Jannarg, Manaoo, Brazils. 
21. C. typhonius, Daud., sp. (C. typhonius, Dum. and Bib.). —Adult female, 
lij inch long. Porto Rico. 
Fourth genus. Pleuroclema. 
22. Pleuroclema Bibronii, Tschudi.— Adult female, id, inch long. Chili. 
Fifth genus. Lymnodynastes. 
23. Lymnodynastes tasmaniensis, Gthr. —Adult female, if inch long. Tas¬ 
mania. 
