Lophognathus horneri MELVILLE, RITCHIE, CHAPPLE, GLOR & SCHULTE, 2018
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Lophognathus horneri
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| Higher Taxa | Agamidae (Amphibolurinae), Sauria, Iguania, Squamata (lizards) |
| Subspecies | |
| Common Names | |
| Synonym | Lophognathus horneri MELVILLE, RITCHIE, CHAPPLE, GLOR & SCHULTE 2018: 54 Grammatophora temporalis GÜNTHER 1867 (part.) Lophognathus horneri — CHAPPLE et al. 2019: 85 |
| Distribution | Australia (Northern Territory) Type locality: Sambo Bore, Wave Hill Station, Northern Territory (18° 52' 48" S, 130° 40' 12" E). |
| Reproduction | |
| Types | Holotype: NTM R16472; Paratypes. NMV D72658 Wave Hill Homestead, Northern Territory (17o 23' 08" S, 131o 06' 44" E); NMV D73846 King Edward River Camp, Mitchell Plateau, Kimberley, Western Australia (14o 52' 57" S, 126o 12' 10" E); NMV D74687 road to Davenport Ranges National Park, Northern Territory (20o 37' 34" S, 134o 47' 14" E); WAM R131990 Kununurra, Kimberley, NE Western Australia (15° 48' 0.00" S, 128° 43' 0.12" E); WAM R108806 Mabel Downs Station, Calico Springs, NE Western Australia (17° 16' 59.88" S, 128° 10' 59.88" E); WAM R132850 Kununurra, NE Western Australia (5° 47' 37.68" S, 128° 43' 10.92" E); BMNH 1946.8.12.73 Nickol Bay, Western Australia [paralectotype Grammatophora temporalis (part.) Günther, 1867]. |
| Diagnosis | Diagnosis: A member of the Australian genus Lophognathus Gray, 1842, characterised by broad white stripe on the upper and lower lips, extending along the full extent of the jaw, a pale stripe from behind the eye to the top of the ear, which is cream, white, grey or yellow in life. This pale stripe is well defined ventrally and dorsally by a row of darkly pigmented scales (fig. 6). It is a large robust dragon with long head and well-built moderately long limbs. It has heterogenous scales on the back, both at the midline and dorsolaterally, associated with a weak to prominent row of enlarged strongly keeled scales. Lophognathus horneri is distinguished from Lophognathus gilberti by the presence of a distinct white spot on the tympanum (fig. 7 in Melville et al. 2018: 51). This well-defined white spot is wholly surrounded or bordered dorsally and to the anterior by an area of black pigmentation that is positioned on the upper posterior quarter of the tympanum. This area of black pigmentation also runs along a raised ridge that extends from the outer dorsoposterior edge of the tympanum towards its centre (fig. 9). |
| Comment | |
| Etymology | This species is named in honour of Paul Horner, the Curator of Terrestrial Vertebrates at the Museum and Art Gallery of the Northern Territory, in recognition of his contributions to the knowledge of the tropical lizard fauna of Australia and his instrumental role in the taxonomic review of agamid lizards from this region. |
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