Varanus keithhornei, commonly known as the canopy goanna, Keith Horne's monitor, blue-nosed tree monitor,[4] or Nesbit River monitor,[5] is a species of monitor lizards native to northeast Australia. It is a member of the Varanus prasinus species group.[6]
| Canopy goanna | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Order: | Squamata |
| Family: | Varanidae |
| Genus: | Varanus |
| Subgenus: | Hapturosaurus |
| Species: | V. keithhornei
|
| Binomial name | |
| Varanus keithhornei | |
| Synonyms | |
| |
This monitor lizard is found in a restricted area of less than 100 km2 near the Claudie and Nesbit rivers, in the McIlwraith and Iron Ranges of the Cape York Peninsula in northern Queensland.[2][7][8]
Description edit
The colouration of V. keithhornei is dark black on the upper side. It has moderately big and smooth head scales. Its tail has no visible keel.[6] The canopy goanna is small for a monitor lizard, reaching a total length up to 77 cm,[9] but more robust than other species of the V. prasinus species complex, and can be further distinguished from them by its colour and the conical throat scales.[8]
Specimens were originally assigned to the species Varanus prasinus by Czechura in 1980,[8] but Wells and Wellington declared it a new species 5 years later.
Diet edit
They forage in the trees and the leaf litter for insects such as orthopterans, roaches, and beetles.[8]
References edit
- ^ Couper, P.; Hoskin, C.; Amey, A. (2018). "Varanus keithhornei". IUCN Red List of Threatened Species. 2018: e.T83778172A101752330. doi:10.2305/IUCN.UK.2018-2.RLTS.T83778172A101752330.en. Retrieved 20 November 2021.
- ^ a b "Varanus keithhornei". Archived from the original on 19 May 2010. Retrieved 19 May 2010.
- ^ ITIS.gov
- ^ "Mampam Conservation – Varanus keithhorni". mampam.com. Archived from the original on 23 July 2011. Retrieved 26 April 2010.
- ^ "Varanus keithhornei". The Reptile Database.
- ^ a b Monitor-lizards.net Archived 19 May 2010 at the Wayback Machine
- ^ "Support Wildlife – Australia Zoo – Help Us Help Wildlife".
- ^ a b c d Bennett, Daniel (1 January 1995). A little book of monitor lizards. Viper Press. pp. 128. ISBN 9780952663201.
- ^ "Canopy goanna (Varanus keithhornei) at the Australian Reptile Online Database | AROD.com.au". arod.com.au.
Further reading edit
- Photos of Varanus keithhornei at Pbase.com
- Anonymous 2001. Opinion 1970 – Odatria keithhornei WELLS & WELLINGTON 1985 (Reptilia, Sauria): specific name placed on Official List. Bulletin of Zoological Nomenclature 58 (1): 74
- Bleeker, P. 1856. Reis Minahassa 1: 278
- Cogger,H.G. 2000. Reptiles and Amphibians of Australia, 6th ed. Ralph Curtis Publishing, Sanibel Island, 808 pp.
- Czechura, G. V. 1980. The emerald monitor Varanus prasinus (Schlegel): an addition to the Australian mainland herpetofauna. Mem. Qd Mus. 20: 103–109
- De Lisle, H.F. 1996. Natural History of Monitor Lizards. Krieger, Malabar (Florida)
- Eidenmüller, B. 2007. Small monitors in the terrarium. Reptilia (GB) (50): 12–19
- Sprackland, R. G. 1991. Taxonomic review of the Varanus prasinus group with descriptions of two new species. Mem. Queensl. Museum, 3 (3): 561–576.
- Wells, R. W. and Wellington, C. R. 1985. A classification of the Amphibia and Reptilia of Australia. Australian Journal of Herpetology, Supplementary Series, (1):1–61.
- Ziegler, T. & W. BÖHME 1998. Comments on the proposed conservation of the specific name Varanus teriae SPRACKLAND, 1991 (Reptilia, Squamata) (Case 3043; see BZN 54: 100–103, 250–251; 55: 37–39). Bull. Zool. Nomenclature 55 (2): 111–113.
- Ziegler, T., Schmitz, A., Koch, A. & W. Böhme 2007. A review of the subgenus Euprepiosaurus of Varanus (Squamata: Varanidae): morphological and molecular phylogeny, distribution and zoogeography, with an identification key for the members of the V. indicus and the V. prasinus species groups. Zootaxa 1472: 1–28
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