Genus of snakes
Polemon is a genus of rear-fanged mildly venomous snakes in the family Atractaspididae. The genus is endemic to Africa. Fifteen species are recognized as being valid.[1][2]
Miodon is a synonym. The mollusc genus of family Carditidae invalidly described by Carpenter in 1863 has been renamed Miodontiscus.
The common name of this genus is snake-eaters, for their habit of feeding mainly on smaller snakes.
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 are rounded; the subcaudals are single (entire),[3] or double (divided).
Genus Polemon -- 13 species
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Species[1]
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Taxon author[1]
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Subspecies*[1]
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Common name[2]
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Geographic range[2]
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P. acanthias[4]
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(J.T. Reinhardt, 1860)
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————
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Reinhardt's snake-eater
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Guinea, Liberia, Ivory Coast, Ghana, Togo, Sierra Leone.
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P. ater
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Portillo, Branch, Tilbury, Nagy, Hughes, Kusamba, Muninga, Aristote, Behangana & Greenbaum, 2019
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————
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black snake-eater
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Central Africa, East Africa.
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P. barthii
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Jan, 1858
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————
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Guinea snake-eater
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Guinea, Ivory Coast, Cameroon.
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P. bocourti
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Mocquard, 1897
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————
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Bocourt's snake-eater
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Cameroon, Río Muni, Gabon, Democratic Republic of the Congo (Zaire).
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P. christyi
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(Boulenger, 1903)
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————
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eastern snake-eater
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Dem. Rep. Congo, Malawi, Uganda, Tanzania, Zambia.
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P. collaris
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(W. Peters, 1881)
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brevior longior
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collared snake-eater
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Angola, Cameroon, Democratic Republic of the Congo, Gabon, Equatorial Guinea, Rwanda, Burundi, Uganda, Nigeria, Central African Republic.
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P. fulvicollis
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(Mocquard, 1887)
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gracilis graueri laurenti
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African snake-eater
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Gabon, Democratic Republic of the Congo (Zaire), Congo, Uganda.
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P. gabonensis
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(A.H.A. Duméril, 1856)
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schmidti
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Gaboon snake-eater
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Democratic Republic of the Congo (Zaire), Cameroon, Nigeria, Benin, Togo, Central African Republic.
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P. gracilis
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(Boulenger, 1911)
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————
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graceful snake-eater
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South Cameroon.
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P. graueri
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(Sternfeld, 1908)
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————
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Grauer's snake-eater
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Uganda, eastern Zaire.
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P. griseiceps
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(Laurent, 1947)
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————
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Cameroon snake-eater
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Cameroon, Central African Republic, Congo.
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P. leopoldi
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(de Witte, 1941)
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————
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Rwanda.
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P. neuwiedi
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(Jan, 1858)
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————
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Ivory Coast snake-eater
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Ivory Coast, Ghana, Togo, Benin, Burkina Faso, Nigeria.
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P. notatus
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(W. Peters, 1882)
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aemulans
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Cameroon, Central African Republic, Democratic Republic of the Congo, Gabon.
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P. robustus
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(de Witte & Laurent, 1943)
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————
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Zaire snake-eater
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Democratic Republic of the Congo (Zaire), Central African Republic.
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* Not including the nominate subspecies.
- Jan [G] (1858). "Plan d'une Iconographie descriptive des Ophidiens et description sommaire de nouvelles espèces de Serpents ". Revue et Magasin de Zoologie Pure et Appliquée, Paris, 2e Série 10: 438-449, 514-527. (Polemon, new genus, p. 520). (in French).