Body naked and furnished with a tail.
These cylindrical animals bear the greatest resemblance to the Lampreys, or are Petromyzoid, being provided with setaceous and scarcely discernible teeth, frequently only one pair of feet; they are developed also out of spawn in the water, and many retain the branchiæ during the whole of life.
Fam. 2. Polypary Reptilia, Kugelfischartige—Stutzkröten, Frogs.
Body thick and naked and without a tail, but with four feet.
The Frogs and Toads proper are likewise developed out of spawn, but soon lose their branchiæ. In their form and even the structure of their mouth they are Kugelfischartige, i. e. remind us strikingly of the Globe-fishes, among the Engmäulern or Plectognathi.
Fam. 3. Acalephan Reptilia, Welsartige—Chelonia.
Body thick and coated with scales, maxillæ quite edentulous.
The Chelonia appear certainly to occupy a pretty high rank; they lay large ova covered with a calcareous shell, but frequently live or dwell in the water, and have, in their mode of living as well as form, a striking resemblance to the naked Batrachia. Through their want of teeth they range among all the succeeding families.
Order 2. Conchozooid Reptilia—Ophidia.
3544. Body cylindriform and scaly, teeth acuminate, tongue longitudinally bifid and inclosed within a sheath; no feet and eyelids.