Amphipneusta, the Perennibranchiate Urodeles; Anoura, Urodela;
Abranchia, Menopoma and Amphiuma; Apoda.
Stannius, 1856, "Handbuch der Zootomie: Anatomie der Wirbelthiere." (2nd ed.)
Amphibia Monopnoa. The Reptilia.
Amphibia Dipnoa. 1. Urodela. PERENNIBRANCHIATA.
Amphibia Dipnoa. 1. Urodela. DEROTREMATA: Amphiuma and Menopoma.
Amphibia Dipnoa. 1. Urodela. MYCTODERA.[[7]]
Amphibia Dipni. 2. Batrachia. AGLOSSA.
Amphibia Dipnoa. 1. Urodela. PHANEROGLOSSA: Systomata =
Engystomatidae.
Amphibia Dipnoa. 1. Urodela. Bufoninae. Without manubrium sterni.
Amphibia Dipnoa. 1. Urodela. Raninae. With manubrium.
Amphibia Dipnoa. 1. Urodela. Hyloidea. With adhesive finger-discs.
Amphibia Dipnoa. 1. Urodela. GYMNOPHIONA.
Gegenbaur, 1859, "Grundzüge der vergleichenden Anatomie."
Amphibia as a separate class, equivalent to that of the Reptilia, are divided into the four Orders: PERENNIBRANCHIATA, SALAMANDRINA, BATRACHIA, and GYMNOPHIONA. In the second edition of the "Grundzüge" (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, bseque"tly chan"ed into Ichthyopsida = Amphibia + Pisces.
Haeckel, 1866, "Generelle Morphologie."