undulatus

The tail also differs, in having both upper and lower lobes rounded, instead of the upper being square as in the undulatus.

He named it undulatus, "undulating or wavy," owing to the undulating character of the markings on the body and fins.

One large male killed and ate a small common swift (Sceloporus undulatus).

A remarkable difference obtains between the larva of the wire-worm and that of Elater undulatus.