A second group is typified by the warty pig, S.
In the African wart-hogs (Phacochoerus), which take their name from the large warty lobes projecting from each side of the face, the teeth are remarkably modified.
In diameter, ridged and warty on the upper half, and light brown to dark greyish-yellow within.
The skin of the upper surface is granular, with many irregular bony tubercles which give it an ugly warty look.
The fruit is usually a capsule opening by valves; the seeds, where four are developed, are each shaped like thy quadrant of a sphere; the seed-coat is smooth, or sometimes warty or hairy; the embryo is large with generally broad, folded, notched or bilobed cotyledons surrounded by a horny endosperm.
More advanced stage, the conjugating cells (a) are still distinct from one another; the warty thickenings of their walls have commenced to form.
Alytes obstetricans is a small toad-like Batrachian, two inches in length, of dull greyish coloration, plump form with warty skin and large eyes with vertical pupils.
The form of the body is very various: some are rounded or oval, others elongated, almost linear; some are covered with warty protuberances, whilst others are smooth and shining, often with a metallic lustre.
In height, is the lateral expansion of the cheeks, owing to a kind of warty growth, thus producing an extraordinarily broad and flattened type of face.