"Allantoid" is a word in ENGLISH

An edentate mammal, of the genus Orycteropus, somewhat resembling a pig, common in some parts of Southern Africa. It burrows …

A small insectivorous mammal (Solenodon paradoxus), allied to the moles, found only in Hayti.

The division of Vertebrata in which the embryo develops an allantois. It includes reptiles, birds, and mammals.

A group of large, extinct, herbivorous mammals, common in the Tertiary formation of the United States.

A thin membrane surrounding the embryos of mammals, birds, and reptiles.

That group of vertebrates which develops in its embryonic life the envelope called the amnion. It comprises the reptiles, the …

A large South American snake of the Boa family (Eunectes murinus), which lives near rivers, and preys on birds and …

A small lemuroid mammal (Arctocebus Calabarensis) of Africa. It has only a rudimentary tail.

A group of herbivorous mammals characterized by having the hoofs in a single series around the foot, as the elephant, …

A quadrumanous mammal, esp. of the family Simiadae, having teeth of the same number and form as in man, and …

Mammals which have no placenta.

An East Indian insectivorous mammal of the genus Tupaia.

One of the Cheiroptera, an order of flying mammals, in which the wings are formed by a membrane stretched between …

A hoglike mammal of New Guinea (Porcula papuensis).

Having two auricles, as the heart of mammals, birds, and reptiles.

A small African hyracoid mammal (Dendrohyrax arboreus) resembling the daman.

Relating to that tribe of ruminant mammals of which the genus Bos is the type.

A genus of large extinct mammals from the miocene strata of western North America. They were allied to the rhinoceros, …

An East Indian insectivorous mammal (Gymnura Rafflesii), somewhat like a rat in appearance, but allied to the hedgehog.

A division of the herbivorous mammals including the hogs and hippopotami; -- so called because the teeth are tuberculated.