''Polemon'' is a genus of

rear-fanged A snake skeleton consists primarily of the skull, vertebrae, and ribs, with only vestigial remnants of the limbs. Skull The skull of a snake is a very complex structure, with numerous joints to allow the snake to swallow prey far larger than i ...

venomous snakes in the family

Atractaspididae The Atractaspididae (atractaspidids) are a family of venomous snakes found in Africa and the Middle East, commonly called mole vipers, stiletto snakes, or burrowing asps. Currently, 12 genera are recognized. Description This family includes many ...

. The genus is endemic to Africa. Fifteen species are recognized as being valid. ''Miodon'' is a synonym. The mollusc genus of family

Carditidae Carditidae is a family of marine bivalve clams of the order Carditida, which was long included in the Venerida. They are the type taxon of the superfamily Carditoidea. Carditidae is a neglected and poorly classified family. It has six sub ...

invalidly described by Carpenter in 1863 has been renamed '' Miodontiscus''.

Common name

The common name of this genus is snake-eaters, for their habit of feeding mainly on smaller snakes.

Description

In the genus ''Polemon'' the maxillary is very short, with three small teeth, followed, after an interspace, by a very large, grooved fang situated anterior to the eye. The third and fourth mandibular teeth are large and fang-like. The head is small, and not distinct from neck. The eyes are minute, with round pupils. The nostrils are in a divided nasal which does not touch the rostral, the internasal forms a suture with the first upper labial. No loreal is present. The parietal is narrowly in contact with an upper labial. The body is cylindrical, with a very short tail. Dorsal scales are smooth, without apical pits, and are arranged in 15 rows. The

ventrals In snakes, the ventral scales or gastrosteges are the enlarged and transversely elongated scales that extend down the underside of the body from the neck to the anal scale. When counting them, the first is the anteriormost ventral scale that cont ...

are rounded; the subcaudals are single (entire), Boulenger GA (1896). ''Catalogue of the Snakes in the British Museum (Natural History). Volume III., Containing the Colubridæ (Opisthoglyphæ and Proteroglyphæ), Amblycephalidæ, and Viperidæ.'' London: Trustees of the British Museum (Natural History). (Taylor and Francis, printers). xiv + 727 pp. + Plates I-XXV. (Genus ''Polemon'', p. 253). or double (divided).

Species

''* Not including the

nominate subspecies In biological classification, subspecies is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (morphology), but that can successfully interbreed. Not all species ...

.''

Common name

Description

Species

See also

References

Further reading