Chalcides colosii, also known commonly as the Riffian skink[1] and Colosi's cylindrical skink,[2] is a moderate-sized species of lizard in the family Scincidae. The species is native to Morocco and some Spanish territories in northwestern Africa.[1] It is named after Giuseppe Colosi, former director of the Zoological Institute of the University of Florence.[2][3] It has been considered a subspecies of Chalcides ocellatus.[2][4][5] The females of the species give birth to live young.
| Riffian skink | |
|---|---|
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Order: | Squamata |
| Family: | Scincidae |
| Genus: | Chalcides |
| Species: | C. colosii
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| Binomial name | |
| Chalcides colosii Lanza, 1957
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| Synonyms[2] | |
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Conservation status
editThe population of C. colosii is most likely slowly declining, but it is not under any major threat. The IUCN gives it Least Concern status because, although its range is less than 20,000 km2 (7,700 mi2), its habitat is extensive and is not severely threatened. Also, it is presumed to have a large population. Some possible threats to C. colosii include tourism and agricultural development.[1]
Geographic range and habitat
editC. colosii is found in Morocco, the Spanish exclaves Ceuta and Melilla, and the Spanish island Isla de Tierra (near Peñón de Alhucemas), but is not very common in the western part of this range. Its general abundance is not well known, but it lives in semi-arid or sub-humid areas up to an altitude of 1,500 m (4,900 ft). It is most commonly found in rocky areas such as stone heaps or slopes with loose soil and partial grass cover.[4] It can also be found near coastal sand dunes and grassland.
Coloration and distinguishing features
editAlthough similar to the ocellated skink, C. ocellatus, C. colosii can be distinguished by its lack of ocelli and its dark lateral bands. C. colosii has a moderately dark lateral band in the center of its back bordered on either side with two darker bands. The remainder has a solid light color. Its adult size is generally between 6 and 12 cm (2.4 and 4.7 in) snout-to-vent length (SVL).[4]
Reproduction
editC. colosii is viviparous.[1][2]
References
edit- ^ a b c d e Jose Antonio Mateo Miras; Ulrich Joger [in German]; Juan Pleguezuelos; Tahar Slimani; Iñigo Martínez-Solano (2009). "Chalcides colosii". IUCN Red List of Threatened Species. 2009: e.T61474A12474024. doi:10.2305/IUCN.UK.2009.RLTS.T61474A12474024.en. Retrieved 12 November 2021.
- ^ a b c d e Chalcides colosii at the Reptarium.cz Reptile Database. Accessed 28 March 2022.
- ^ Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). The Eponym Dictionary of Reptiles. Baltimore: Johns Hopkins University Press. xiii + 296 pp. ISBN 978-1-4214-0135-5. (Chalcides colosii, p. 57).
- ^ a b c Schleich, Hans-Hermann; Kästle, Werner; Kabisch, Klaus (1996). Amphibians and Reptiles of North Africa: Biology, Systematics, Field Guide. Koeltz Scientific Books. 630 pp. ISBN 978-3874293778.
- ^ Boulenger GA (1890). "On the Varieties of Chalcides ocellatus, Forsk." Annals and Magazine of Natural History, Sixth Series 5: 444-445. ("Chalcides ocellatus Var. vittatus ", new variety, p. 445).
Further reading
edit- Lanza B (1957). "Su alcuni 'Chalcides' del Marocco (Reptilia: Scincidae)". Monitore Zoologico Italiano 65: 85–98. (Chalcides colosii, new name). (in Italian).
- Pasteur G (1981). "A Survey of the Species Groups of the Old World Scincid Genus Chalcides ". Journal of Herpetology 15 (1): 1–16.
- Sindaco R, Jeremčenko VK (2008). Reptiles of the Western Palearctic. 1. Annotated Checklist and Distributional Atlas of the Turtles, Crocodiles, Amphisbaenians and Lizards of Europe, North Africa, Middle East and Central Asia. (Monographs of the Societas Herpetologica Italica). Latina, Italy: Edizioni Belvedere. 580 pp. ISBN 978-88-89504-14-7.