Poiana (genus)
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| African linsangs[1] | |
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| Poiana richardsonii | |
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Poiana
Gray, 1864
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The African linsangs also known as oyans[2] are two species classified in the mammalian subfamily Viverrinae, in the family Viverridae. There is one genus, Poiana.
Both linsang genera (Poiana and the Asian Prionodon) were formerly placed in the subfamily Viverrinae (of Viverridae), along with several other genera, but recent research suggests that their actual relationships may be somewhat different. The linsangs are remarkable for their morphological resemblance to cats, family Felidae, which is greater than in the other viverrids. As the relationship between linsangs and cats was thought to be rather distant (the two groups belonging to different families within the superfamily Feliformia), this was considered an example of convergent evolution. However, DNA analysis indicates that while the African linsangs (Poiana) are true viverrids closely related to the genets, the Asiatic linsangs (Prionodon) are not and may instead be the closest living relatives of the family Felidae.[3] The similarities between Asiatic linsangs and cats are thus more likely to be due to common ancestry, while the similarities between the two genera of linsangs must be convergent.
The name linsang is from Javanese linsang or wlinsang, which used to be wrongly translated as "otter" in English dictionaries. Linsangs are nocturnal, generally solitary tree dwellers. They are carnivorous, eating squirrels and other rodents, small birds, lizards and insects. Typical size is a little over 30 cm (1 foot), with a tail that more than doubles that length. Bodies are long, with short legs, giving a low appearance. Both species have yellowish bodies with black markings (stripes, blotches and spots), though the distribution and nature of the markings varies between the two species.
The species of African linsangs are:
- Poiana leightoni - Leighton's linsang
- Poiana richardsonii - African linsang
References
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- ↑ Don E. Wilson , Russell A. Mittermeier (editors): Handbook of the Mammals of the World. Lynx Editions, Barcelona, 2009. ISBN 978-84-96553-49-1
- ↑ Gaubert, P. and G. Veron (2003). Exhaustive sample set among Viverridae reveals the sister-group of felids: the linsangs as a case of extreme morphological convergence within Feliformia. Proceedings of the Royal Society London Biological Sciences 270: 2523–2530.
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