CLASSIFICATION 



2. BATRACHIA. AGLOSSA. 



PHANEROGLOSSA : Systomata = 



Engystomatidae. 

 Bufoninae. Without manubriuin 



sterni. 



Raninae. With manubriuin. 

 Hyloidea. With adhesive finger- 

 discs, 



GYMNOPHIONA. 

 Gegenbaur, 1859, " Gnmdziige der vergleichenden Anatomic." 



AMPHIBIA as a separate class, equivalent to that of the REPTILIA, are 

 divided into the four Orders: PERENNIBRANCHIATA, SALA- 

 MANDRINA, BATRACHIA, and GYMNOPHIONA. In the 

 second edition of the " Grundztige " (1870) they are divided into 

 URODELA, ANURA, and GYMNOPHIONA. 

 Huxley, 1864, " The Elements of Comparative Anatomy." 

 MAMMALS. 



SAUROIDS, subsequently changed into SAUROPSIDA = Reptilia + Aves. 

 ICHTHYOIDS, ICHTHYOPSIDA = Amphibia + 



Pisces. 

 Haeckel, 1866, " Generelle Morphologic." 



Amphibia. A. PHRACTAMPHIBIA s. Ganocephala = Labyrinthodonta -f- 



Peromela [Apoda]. 

 B. LISSAMPHIBIA s. Sozobranchia = Sozura [Urodela] + 



Anura. 

 Cope, 1869. 1 



STEGOCEPHALI, GYMNOPHIDIA, URODELA, PROTEIDEA, TRACHYSTOMATA, 



ANURA. 



Huxley, 1871, "A Manual of the Anatomy of Vertebrated Animals." 

 Amphibia I. SAUROBATRACHIA [v.d. Hoeven's term] s. URODELA 



1. Proteidea. 



2. Salamandridae. 

 II. LABYRINTHODONTA. 



III. GYMNOPHIONA. 



IV. BATRACHIA s. ANURA. 



Boulenger, 1882, " Catalogue of the BATRACHIA GRADIENTIA s. CAUDATA and 

 BATRACHIA APODA," divides the Caudata simply into : SALAMAND- 

 RIDAE, AMPHIUMIDAE, PROTEIDAE, and SIRENIDAE. 



1882, ''Cat. Batrachia Salientia s. Ecaudata," see p. 140. 

 Cope, 1890, " Synopsis of the Families of Vertebrata." 2 

 CLASS BATRACHIA. 



Sub-Class I. STEGOCEPHALI. 



Order 1. Ganocephali : Trimerorhachis, Archegosaurus. 



2. Rhachitomi : Eryops 



3. Embolomeri : Cricotus. 



4. Microsauri : Branchiosaurus, Hylonomus, etc. 



1 Pi-oc. Ac. Philad. p. 209. 2 Americ. Natural, xxiii. p. 849. 



