What is "lagomorpha"

Lagomorpha \Lag`o*mor"pha\ (l[a^]g`[-o]*m[^o]r"f[.a]), prop. n. pl. [NL., fr. Gr. lagw`s a hare + morfh` form.] (Zo["o]l.) an order of rodent-like mammals, comprising the hares, rabbits, and pikas. They have four incisors in the upper jaw. Called also Duplicidentata. They were formerly classified together with the rodents, but the Rodentia and Lagomorpha are now classed as separate orders.

The lagomorphs are the members of the taxonomic order Lagomorpha, of which there are two living families: the Leporidae ( hares and rabbits) and the Ochotonidae (pikas). The name of the order is derived from the Ancient Greek lagos (λαγώς, "hare") +morphē (μορφή, "form"). There are about eighty-seven species of lagomorph, including about twenty-nine species of pika, twenty-eight species of rabbit and cottontail, and thirty species of hare.