Acrantophis madagascariensis

Acrantophis madagascariensis (*)

Superregnum: Eukaryota
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Cladus: Craniata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Classis: Reptilia
Cladus: Eureptilia
Cladus: Romeriida
Subclassis: Diapsida
Cladus: Sauria
Infraclassis: Lepidosauromorpha
Superordo: Lepidosauria
Ordo: Squamata
Subordo: Serpentes
Superfamilia: Booidea

Familia: Boidae
Subfamilia: Sanziniinae
Genus: Acrantophis
Species: Acrantophis madagascariensis
Name

Acrantophis madagascariensis (Duméril & Bibron, 1844)

Syntypes (3): MNHN-RA-0.3133, MNHN-RA-0.7275, and MNHN-RA-0.8636, collected by C.A.C.J. Bernier between 1831–1834.

Type locality: “íle de Madagascar”.
Combinations

Pelophilus madagascariensis Duméril & Bibron, 1844: 524 [original combination]
Boa madagascariensis — Boulenger, 1893: 120 [subsequent combination]
Acrantophis madagascariensis — Stull, 1935 [subsequent combination]

References
Primary references

Duméril, A.M.C. & Bibron, G. 1844. Erpétologie Générale on Histoire Naturelle Complète des Reptiles. Tome Sixième (In French). Librairie Encyclopédique de Roret: Paris. XII + 610 pp. BHL Reference page.

Links

Uetz, P. & Hallermann, J. 2021. Acrantophis madagascariensis. The Reptile Database. Accessed on 4 January 2019.
Raxworthy, C.J., Randriamahazo, H., Rakotondrazafy, N.A. & Rakotondravony, H. 2011. IUCN: Acrantophis madagascariensis (Least Concern). The IUCN Red List of Threatened Species 2011: e.T283A13055130. DOI: 10.2305/IUCN.UK.2011-2.RLTS.T283A13055130.en
Acrantophis madagascariensis – Taxon details on Integrated Taxonomic Information System (ITIS).

Vernacular names
English: Malagasy Ground Boa
polski: Boa madagaskarski

Acrantophis madagascariensis is a species of boid snake in the subfamily Sanziniinae that is endemic to the island of Madagascar.[4] Its common names include Malagasy ground boa and Madagascar boa.[1]

Description

This species is included in the Boidae family of snakes, subfamily Sanziniinae. No subspecies are currently recognized by ITIS.[5]

Adult females can be up to 10 feet (3.05 metres), males are typically smaller, the average size of the population is 8 feet (2.44 m) in length.[6] This is the largest snake species found on the island of Madagascar. Acrantophis madagascariensis, like others in the family, dispatch their prey by constriction.

The color pattern consists of a pale reddish-brown ground color mixed with gray, overlaid with a pattern dorsal rhombs outlined with black or brown. Sometimes this creates a vague zigzag impression. The sides are patterned a series of black ovoid markings with reddish blotches, often bordered or centered with white.[6]

Distribution and habitat

Endemic to Madagascar.[2] Occurs in the central, northern and western parts of the island.[6] The type locality given is "Madagascar."[2]
Acrantophis madagascariensis (1).jpg

The species usually occurs in sparse, open woodland[6] such as the Madagascar dry deciduous forests.

Conservation status

Acrantophis madagascariensis is classified as Least Concern on the IUCN Red List of Threatened Species since 2011. Previously it was classified as Vulnerable (VU) with the following criteria: A1cd (v2.3, 1994).[1] This means that a population reduction of at least 20% has been observed, estimated, inferred or suspected over the last 10 years or three generations, whichever is the longer, based on a decline in area of occupancy, extent of occurrence and/or quality of habitat, and based on actual or potential levels of exploitation.[1] The species was last assessed in 2011.[1]

It is also listed as CITES Appendix I, which identifies it as threatened with extinction and recommends a prohibition in international trade except for scientific research.[7]

Threats

Current threats include deforestation, human population growth, agricultural and industrial development, and collection for the illegal pet trade.[6]

Behavior

Shelters in mammal burrows, fallen trees, debris piles and similar sites that offer some protection. Brumation takes place during the cool and dry winter months, usually May though July.[6]
Feeding

The diet consists of small mammals and birds.

Reproduction

Mating takes place after emerging from brumation. Females may be courted by and copulate with more than one male. Ovoviviparous, females give birth to 4-6 large young after a long gestation period of 4–6 months. Neonates are 19-24 inches (48–61 cm) in length and are already capable of feeding on small rodents and birds.[6]

References

Raxworthy, C.J.; Randriamahazo, H.; Rakotondrazafy, N.A.; Rakotondravony, H. (2011). "Acrantophis madagascariensis". IUCN Red List of Threatened Species. 2011: e.T283A13055130. doi:10.2305/IUCN.UK.2011-2.RLTS.T283A13055130.en. Retrieved 13 November 2021.
McDiarmid RW, Campbell JA, Touré T. 1999. Snake Species of the World: A Taxonomic and Geographic Reference, Volume 1. Washington, District of Columbia: Herpetologists' League. 511 pp. ISBN 1-893777-00-6 (series). ISBN 1-893777-01-4 (volume).
The Reptile Database. www.reptile-database.org.
Glaw, Frank; Vences, Miguel (2007). A Field Guide to the Amphibians and Reptiles of Madagascar (3rd ed.). Cologne, Germany: Vences & Glaw Verlags. ISBN 978-3929449037.
"Acrantophis madagascariensis". Integrated Taxonomic Information System. Retrieved 17 February 2014.
Mehrtens JM. 1987. Living Snakes of the World in Color. New York: Sterling Publishers. 480 pp. ISBN 0-8069-6460-X.

Acrantophis madagascariensis at CITES and United Nations Environment Programme / World Conservation Monitoring Centre. Accessed 10 July 2008.

Siagonodon