434 PBLOBATIDiE. 



Vomerine teeth on a level with the hinder 

 edge of the choanse : a large gland in 



the upper integument of tibia 7. multipUcatus, p. 436. 



2. Eustachian tubes exceedingly mi- 

 nute, much smaller than the 

 choanse 8. staynalis, p. 436. 



1. Scaphiopus solitarius. 



Scaphiopus solitarius, Giinth. Cat. p. 38. 



Scapliiopus solitarius, Holhr, N.-Amer. Herp. i. p. 85, pi. 12, & 2ud 

 edit. iv. pi. 27 ; Tschudi, I. c. ; Dnm. 8)- Bibr. p. 473 ; Lecunte, 

 Proc. Ac. Philad. vii. 1855, p. 429 ; Brocchi, Bull. Soc. Philom, (7) 

 iii. 1879, p. 23, and Miss. Sc. Mex., Batr. p. 23, pi. 9. f. 3. 



Rana holbrookii, Harlan, Med. Res. p. 105. 



Scaphiopus holbrookii, Baird, Rep. Evpl. Surv. iv. Rept. 1859, 

 pi. 28. f . 1 ; Cope, Proc. Ac. Philad. 1863, p. 54. 



Tongue subcircular or oval, nicked behind. Vomerine teeth in 

 two small groups on a level with the hinder edge of the choanse. 

 Snout rounded, with indistinct canthus rostralis ; nostril nearer the 

 tip of the snout than the eye : interorbital space as broad as, or a 

 little broader than, the upper eyelid : upper surface of head bony, 

 rough ; tympanum distinct, half the width of the eye. Fingers 

 short, with a rudiment of web, first a little longer than second ; 

 toes short, webbed to the tips ; subarticular tubercles indistinct ; 

 three metacarpal tubercles ; metatarsal shovel longer than first 

 toe. The hind limb being carried forwards along the body, the 

 tibio-tarsal articulation reaches the shoulder or the tympanum. 

 Skin of back minutely tubercular, of sides more coarsely ; a small, 

 rounded, prominent parotoid gland : a small, rounded, porous gland 

 on each side of the thorax near the axiUa ; beneath nearly smooth. 

 Brownish or olive above, marbled with darker ; edge of the meta- 

 tarsal shovel black. Male with a subgular vocal sac, and during 

 the breeding-seaso]i black rugosities on the inner side of the first 

 two fingers. 

 United States. 



2, Scaphiopus couchii. 



Scaphiopus couchii, Baird, Proc. Ac. Philad. vii. 1855, p. 62, and 

 U.S. ^ Mex. Bound. Sttrv. ii. 1859, Rejjt. p. 28, pi. 35. f. 1-6; 

 Cojje, Proc. Ac. Philad. 1863, p. 52; Brocchi, Miss. Sc. Mex., 

 Batr. p. 26. 



varius, Cope, I. c. p. 52 ; Brocchi, I. c. p. 27. 



Tongue subcircular, slightly emarginate. Vomerine teeth be- 

 tween the choanse or opposite their posterior border. Snout promi- 

 nent ; canthus rostralis - obsolete ; upper surface of head bony, 



