Calumma nasutum

Calumma nasutum, the nose-horned chameleon, is a small species of chameleon found in Madagascar.[1][2] The taxonomic identity of the species is currently uncertain and in need of revision, and this revision is likely to result in several newly described species.[3] Several different data sets indicate that C. nasutum is a complex of several species.[4]

Calumma nasutum
Male
Female in Andasibe VOIMMA reserve

Least Concern  (IUCN 3.1)[1]
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Suborder: Iguania
Family: Chamaeleonidae
Genus: Calumma
Species:
C. nasutum
Binomial name
Calumma nasutum
(Duméril & Bibron, 1836)

Taxonomy

Calumma nasutum belongs to the so-called "C. nasutum species group" within the genus Calumma. This group is a phenetic one, and has been reconstructed by some studies as being polyphyletic,[5] but the species are unified by their small size and possession of a soft dermal appendage at the front of the nose ("rostral appendage"). The group currently consists of C. nasutum, C. fallax, C. gallus, C. vohibola, C. vatosoa, C. radamanus, C. peyrierasi, C. boettgeri, and C. linotum.[3][6]

Calumma nasutum itself is a member of a species complex. Gehring et al.[3] showed that there were numerous genetic lineages in the Calumma nasutum group, which they divided into 33 Operational Taxonomic Units (OTUs). It was not clear which of these OTUs belongs to the 'real' C. nasutum, or the differences between it and C. fallax, which is morphologically similar.[3]

Calumma nasutum.
gollark: In this case.
gollark: Sure. But it's functionally equivalent to just mapping each 5 bits to a letter.
gollark: If gods can do gzip or something, this would also increase link efficiency a lot because English is *not* information-dense.
gollark: That's not binary search, that's just encoding letters as binary.
gollark: Binary search will just get you numbers.

References
  1. "Calumma nasutum (Nose-horned Chameleon)". IUCN Red List of Threatened Species. Retrieved 19 August 2013.
  2. "Calumma nasutum (DUMÉRIL & BIBRON, 1836)". /reptile-database.reptarium.cz. Retrieved 19 August 2013.
  3. Gehring, Philip-Sebastian; Tolley, Krystal A.; Eckhardt, Falk Sebastian; Townsend, Ted M.; Ziegler, Thomas; Ratsoavina, Fanomezana; Glaw, Frank; Vences, Miguel (2012-07-01). "Hiding deep in the trees: discovery of divergent mitochondrial lineages in Malagasy chameleons of the Calumma nasutum group". Ecology and Evolution. 2 (7): 1468–1479. doi:10.1002/ece3.269. ISSN 2045-7758. PMC 3434913. PMID 22957155.
  4. 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.
  5. Tolley, Krystal A.; Townsend, Ted M.; Vences, Miguel (2013-05-22). "Large-scale phylogeny of chameleons suggests African origins and Eocene diversification". Proceedings of the Royal Society of London B: Biological Sciences. 280 (1759): 20130184. doi:10.1098/rspb.2013.0184. ISSN 0962-8452. PMC 3619509. PMID 23536596.
  6. Prötzel, David; Ruthensteiner, Bernhard; Scherz, Mark D.; Glaw, Frank (2015-11-25). "Systematic revision of the Malagasy chameleons Calumma boettgeri and C. linotum (Squamata: Chamaeleonidae)". Zootaxa. 4048 (2): 211–31. doi:10.11646/zootaxa.4048.2.4. ISSN 1175-5334. PMID 26624746.


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.