sb. Zool. [f. next + -AN.] = next.

1

1872.  Humphry, Myology, 3. In Urodelans … the movements of the bony pieces are restricted, or nearly so, to one plane.

2

1879.  Nicholson, Palæont. (ed. 2), II. 175. The Palæosiren of Geinitz … is from the Lower Permian, and is believed by its discoverer to be a Urodelan.

3