7. MYOBA/nucmrs. — 8. ruinophrynits. 329 



Pupil erect. Tongue small, elliptical, entire aud free behind. 

 Palate smooth. Tympanum distinct. Fingers and toes free, the 

 tips not dilated. Outer metatarsals united. Epicoracoid cartilages 

 narrow, scarcely overlapping ; no omosternum ; sternum cartila- 

 ginous, ossified on the median line. Di apophyses of sacral vertebra 

 rather strongly dilated. Terminal phalanges simple. 



Australia. 



1. Myobatrachus gouldii. 



Myobatrachus paradoxus, Gtinth. Cat. pp. 3 & 128. 

 Chelydobatrachus gouldii, Giinth. I. c. p. 53. 



Breviceps gouldii, Gray, in Grey's W. Austr. ii. p. 448, pi. i. f. 1. 

 Myobatrachus paradoxus, Schleg. Proc. Zool. Soc. 1850, p. 9, and 



'Hand!. Dierk. ii. pi. 4. f. 7(3 ; Peters, Men. Berl. Ac. 1867, p. 37. 

 Myobatrachus gouldii, Gray, Proc. Zool. Soc. 1850, p. 10. 



Habit extremely stout. Head very small, with short rounded 

 snout : canthus rostralis absent ; crown swollen ; eye very small ; 

 tympanum more or less distinct, rather larger than the eye. Limbs 

 excessively short; fore limb very strong, adapted for burrowing; 

 fingers short, much depressed ; hind limb weaker ; toes not longer 

 than the fingers, also much depressed ; subarticular tubercles in- 

 distinct ; two rather indistinct flat metatarsal tubercles, outer 

 largest. Skin smooth, or with small scattered tubercles. Above 

 greyish brown, beneath lighter. Male with a subgular vocal sac. 



W. Australia. 



8. RHINOPHRYNUS. 



Rhinophrynus, Dam. §■ Bibr. viii. p. 127 ; Giinth. Cat. p. 127; Cope, 

 Aat. Hist. Iiev. 1865, p. 100. 



Pupil erect. Tongue elongate, subtriangular, free in front. 

 palate smooth. No tympanum. Fingers free; toes webbed, the 

 tips not dilated. Outer metatarsals united. Epicoracoid cartilages 

 narrow, scarcely overlapping; no omosternum; sternum rudimen- 

 tary. Diapophyses of sacral vertebra rather strongly dilated. Ter- 

 minal phalanges simple. 



Mexico. 



1. Rhinophrynus dorsalis. 



Rhinophrynus dorsalis, Giinth. Cat. p. 127, pi. xii. 

 Rhinophrynus dorsalis, Dum. fy Bibr. p. 758, pi. 91. f. 2; Giinth. 



Proc. Zool. Soc. L858, p. •">■■;'•». 

 rostratua, Brocchi, Ball. Soc. PhUom. (7) i. p. 106. and Miss. 



8c, Mex. } Batr. pi. 9. f. 1. 



