Rutilus and A.
SPINY SQUIRREL, a book-name for a group of African ground squirrels, characterized by the spiny nature of the fur of the more typical forms. They form the genus Xerus, which is split up into a number of subgenera; Xerus rutilus of Abyssinia and East Africa belonging to the typical group, while the striped North African X.
As soon as the ice breaks up in the delta innumerable shoals of roach (Leuciscus rutilus) and trout (Luciotrutta leucichthys) rush up the river.
Antelopes, Lepus lehmanni, Lagomys rutilus, various species of Arvicolae, and the Himalayan long-tailed marmot (Arctomys caudatus), the most characteristic inhabitant of the alpine meadows, are the only mammals of the Pamir proper.