Hypsilurus magnus MANTHEY & DENZER, 2006
Can you confirm these amateur observations of Hypsilurus magnus?
|Higher Taxa||Agamidae (Amphibolurinae), Sauria, Iguania, Squamata (lizards)|
|Synonym||Hypsilurus magnus MANTHEY & DENZER 2006: 26|
Gonyocephalus godeffroyi — DE ROOIJ 1909: 377 (not Lophura (Hypsilurus) Godeffroyi PETERS 1867)
Gonyocephalus nigrigularis — BOULENGER 1914: 255 (not Gonyocephalus (Hypsilurus) nigrigularis MEYER 1874)
Gonyocephalus nigrigularis — DE ROOIJ 1915 (part.): 111
Gonyocephalus nigrigularis — DE ROOIJ 1920: 137
Gonyocephalus nigrigularis — DE JONG 1927: 310
Gonocephalus nigrigularis — URBAN 1977: 75, 110 (not Gonyocephalus (Hypsilurus) nigrigularis MEYER 1874)
? Hypsilurus nigrigularis SCHULTE et al., 2003: 600
Hypsilurus magnus — KRAUS 2013
|Distribution||Papua, Province of Indonesia, Papua New Guinea (Prince Alexander Mts., Huriak, 3.5846°S, 143.5007°E, 68 m asl.;Madang, West Sepik)|
Type locality: Gariau aan het Jamoer meer (Gariau near Lake Jamur, 3°42’S 134°56’E)
|Types||Holotype: RMNH 29093|
|Diagnosis||Diagnosis. Large, long–tailed species (SVL males up to 232, females up to 184 mm [Urban, 1977 as nigrigularis]; TL/SL > 2.8) with homogeneous dorsal scalation and a discontinuous vertebral crest. Scales below the tympanum weakly enlarged, at the angle of the mouth sometimes several more enlarged scales; a row of enlarged submaxillaries present; anterior edge of the gular pouch without enlarged scales.|
Hypsilurus magnus differs from H. bruijnii by a higher number of scales between enlarged submaxillaries and infralabials 4 (vs. 3) as well as a SVL up to 232 mm (vs. 143 mm) and differing colouration in alcohol (greenish grey without or with darker dorsal bands, each enclosing a light band vs. reddish brown without clear bands); H. modestus by the presence of a dorsal crest (vs. absent); H. auritus, geelvinkianus und nigrigularis by the presence of a row of enlarged submaxillaries, a small gular pouch with rounded base near the clavicular region (vs. large with acute base on the chest) as well as a differing gular pouch scalation, anterior half with large scale, posterior with small scales (vs. complete gular pouch with equally sized scales); godeffroyi and schoedei by a higher number of scales between enlarged submaxillaries and infralabials 4 (vs. 3) and a smaller tympanum T/E < 0.76 (vs. > 0.80), additionally from godeffroyi by narrowly spaced and overlapping anterior scales on the gular pouch (vs. widely spaced), a shorter tail TL/SVL < 3.1 (vs. > 3.3), as well as a broader head HW/SVL > 0.145 (vs. < 0.128) and from schoedei by a significantly larger SVL up to 232 mm (vs. < 130); longii by smooth anterior scales on the gular pouch (vs. keeled) and in females as well as younger males an absent V–shaped marking on the nape (vs. present); macrolepis by a shorter tail, TL/SVL < 3.1 (vs. > 3.5), a smaller tympanum T/E < 0.76 (vs. > 0.80) and a significantly larger SVL, up to 232 mm (vs. < 130); binotatus by a discontinuous vertebral crest on the nape (vs. continuous); papuensis by the absence of dark spots on either side of the neck surrounded by a lighter colour above and behind (vs. present); schultzewestrumi by the absence of extremely large plates on the sides of the head (vs. present) and by smaller gular scales ≈ Ø tympanum (vs. several ≥ Ø tympanum) and boydii, spinipes and dilophus by a homogeneous dorsal scalation (vs. heterogeneous) and a longer tail TL/SVL > 3.2 (vs. < 2.3) (Manthey & Denzer 2006: 26).
|Comment||Similar species: H. bruijnii.|
|Etymology||Named after its large size.|
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