Hemicordylus: Difference between revisions
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==Description== |
==Description== |
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Their maximum [[:wiktionary:svl|snout-to-vent length]] is about 76 mm. They have gracile features, with a [[phenotype]] which is described as intermediate between typical ''[[Cordylus]]'' and the larger, more robust ''[[Pseudocordylus]]''. They have long limbs, and long slender digits. Some populations are melanistic and sexually dichromatic.<ref name = Stanley>''Hemicordylus'' resurrected: {{Cite journal | last = Stanley | first = Edward L. | title = Between a rock and a hard polytomy: Rapid radiation in the rupicolous girdled lizards (Squamata: Cordylidae) | journal = Molecular Phylogenetics and Evolution |
Their maximum [[:wiktionary:svl|snout-to-vent length]] is about 76 mm. They have gracile features, with a [[phenotype]] which is described as intermediate between typical ''[[Cordylus]]'' and the larger, more robust ''[[Pseudocordylus]]''. They have long limbs, and long slender digits. Some populations are melanistic and sexually dichromatic.<ref name = Stanley>''Hemicordylus'' resurrected: {{Cite journal | last = Stanley | first = Edward L. | title = Between a rock and a hard polytomy: Rapid radiation in the rupicolous girdled lizards (Squamata: Cordylidae) | journal = Molecular Phylogenetics and Evolution | volume = 58 | pages = 53–70 | year = 2011 | doi = 10.1016/j.ympev.2010.08.024|display-authors=etal | pmid=20816817}}</ref> The melanistic populations have been shown to be [[ecotype]]s rather than [[Relict|relics]] in the related genus ''[[Karusasaurus]]''.<ref name = Engelbrecht>{{Cite journal | last = Engelbrecht | first = Hanlie M. |author2=P. le Fras N. Mouton |author3=Savel R. Daniels | title = Are Melanistic Populations of the Karoo Girdled Lizard, Karusasaurus polyzonus, Relics or Ecotypes? A Molecular Investigation | journal = African Zoology | publisher = Zoological Society of Southern Africa | volume = 46 | issue = 1 | pages = 146–155 | year = 2011 | doi = 10.3377/004.046.0105 }}</ref> |
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==Habits== |
==Habits== |
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Revision as of 12:19, 20 July 2019
| Hemicordylus | |
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| H. capensis in the Hottentots-Holland | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Order: | Squamata |
| Family: | Cordylidae |
| Genus: | Hemicordylus Smith, 1838 |
Hemicordylus, the false girdled lizards, is a genus comprising two lizard species endemic to the Cape Fold Belt of southern South Africa.
Description
Their maximum snout-to-vent length is about 76 mm. They have gracile features, with a phenotype which is described as intermediate between typical Cordylus and the larger, more robust Pseudocordylus. They have long limbs, and long slender digits. Some populations are melanistic and sexually dichromatic.[1] The melanistic populations have been shown to be ecotypes rather than relics in the related genus Karusasaurus.[2]
Habits
Their specialized adaptation to steep rock faces, is believed to have favoured their agility and lightly armored anatomy.[1][3] They give live birth to 1–3 young.[1]
Species
References
- ^ a b c Hemicordylus resurrected: Stanley, Edward L.; et al. (2011). "Between a rock and a hard polytomy: Rapid radiation in the rupicolous girdled lizards (Squamata: Cordylidae)". Molecular Phylogenetics and Evolution. 58: 53–70. doi:10.1016/j.ympev.2010.08.024. PMID 20816817.
- ^ Engelbrecht, Hanlie M.; P. le Fras N. Mouton; Savel R. Daniels (2011). "Are Melanistic Populations of the Karoo Girdled Lizard, Karusasaurus polyzonus, Relics or Ecotypes? A Molecular Investigation". African Zoology. 46 (1). Zoological Society of Southern Africa: 146–155. doi:10.3377/004.046.0105.
- ^ Eifler et al., 2007; Janse van Rensburg, 2009; Janse van Rensburg et al., 2009