2 BATRACHIA. ECAUDATA. 



Fam. 6. DendrophryniscidsB. Maxillary teeth none ; diapophyses 

 of sacral vertebra not dilated > p. 273. 



Fam. 7. Bufonidse. MasiUary teeth none ; diapophyses of sacral 

 vertebra dilated p. 274. 



Fam. 8. Hylidse. Upper jaw toothed ; diapophyses of sacral 

 vertebra dilated; terminal phalanges claw-shaped. . p. 330. 



Fam. 9. Pelobatidse. Upper jaw toothed ; diapophyses of sacral 

 vertebra strongly dilated ; ribs none p. 432. 



Fam. 10. Discoglossidse. Upperjaw toothed ; diapophyses of sacral 

 vertebra dilated ; short ribs articulated to the anterior 

 diapophyses p. 444. 



Fam. 11. AmpMgiiathodontidse. Both jaws toothed ; diapophyses 

 of sacral vertebra dilated p. 449, 



Fam. 12. HemiphractidaB. Both jaws toothed ; diapophyses of 

 sacral vertebra not dilated p. 451. 



Suborder II. AGLOSSA. 



Enstachian tubes united into a single ostium pharyugium ; no 

 tongue. 



Fam, 13. Dactyletliridae. Upper jaw toothed p. 456. 



Fam. 14. Pipidae. Teeth none p. 458. 



Suborder I. PHANEROGLOSSA. 



rhaneroglossa, part., Waylcr, Syst. Amph. 

 Phaneroglosses, Dum. <§• Hibr. Erp. Gen. viii. 

 Opisthoglossa and Proteroglossa, Gilnther, Cat. Batr. Sal. 



Eustachian tubes separated ; a tongue. 



All the Frogs of this division, as far known, possess in the ad- 

 vanced larval state one spiraculum only, or opercular slit ; it is 

 situated on the left side, except in the Discoglossidce, in which it is 

 situated in the middle of the thoracic region. 



A. FIRMISTERNIA. 



Bufoniformia, part., aud Eauiformia, Cope, Nat. Jlist. Rev. 1865. 

 Eauiformia aud Gastreclimia, Cope, Journ. Ac. Philad. (2) vi. 1867. 

 Raniformia, Firmisteruia, aud Gastrechmia, Cope, Chech-list of N, 

 Amer. Batr. 8) Bept., Bull. U.S. JVat. Mus. i. 1877. 



Coracoids firmly united by a simple epicoracoid cartilage ; prccora- 

 coids, if present, resting with their distal extremity upon the cora- 

 coids, or connected with the latter by the epicoracoid cartilage. 



