Читать книгу A Synopsis of the North American Lagomorpha - E. Raymond Hall - Страница 5

Revised by A. H. Howell, N. Amer. Fauna, 47:1–57, August 21, 1924.

1795. Ochotona Link, Beyträge zur Naturgesch, I (pt. 2):74. Type, Lepus ogotona Pallas.

Characters.—Five teeth (excluding incisor) in lower jaw; first cheek-tooth (p3) with more than one re-entrant angle; columns of lower molars angular internally; transverse width of any one column of a lower molariform tooth more than double the width of the neck connecting it to the other column.