Calotes megapogon Duméril & Bibron, 1837: 419

Dondorp, Esther & Denzer, Wolfgang, 2024, Annotated catalogue of acrodont lizard types in the collection of the Naturalis Biodiverstity Center (Squamata: Agamidae, Chamaeleonidae), Zootaxa 5403 (1), pp. 65-79 : 68

Calotes megapogon Duméril & Bibron, 1837: 419

= Hypsilurus megapogon ( Duméril & Bibron, 1837)

Syntypes: RMNH. RENA.3048, male, Lobo , New Guinea, coll. Müller 1828 ; RMNH. RENA.3049, male, same locality assumed, coll. Müller & Macklot 1828 .

Type locality: “im hohen Wald“ [in the high (primary) forest]) near Lobo, Triton Bay, New Guinea

Remarks: The type status and nomenclature of the Naturalis specimens of Calotes megapogon are discussed in detail in Denzer & Dondorp (2023b). Briefly, the name Calotes megapogon was published as a synonym of Lophyrus dilophus (comb. nov. pro Tiaris dilophus Duméril & Bibron, 1836 ) by Duméril & Bibron (1837). In a later publication by Gray (1845) made the name megapogon available for nomenclatural purposes in accordance with Art. 11.6.1 of the Code (IZCN 1999) in the new combination Tiaris megapogon . Comparison of the Naturalis specimens with the holotype by monotypy of Tiaris dilophus Duméril & Bibron, 1836 revealed that they belong to different genera ( Denzer & Dondorp 2023b). Tiaris dilophus belongs to the genus Lophosaurus Fitzinger , current name Lophosaurus dilophus (Duméril & Bibron, 1836) , while Calotes megapogon is a member of the genus Hypsilurus Peters related to the species Hypsilurus auritus (Meyer, 1874) and Hypsilurus spinosus ( Duméril & Duméril, 1851) . The latter two species were shown to be conspecific and synonymized with Hypsilurus megapogon which constitutes the oldest available and therefore the applicable name for the taxon.