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Nactus panaeati ZUG, 2020

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Common NamesE: Panaeati Slender-toed Gecko 
SynonymNactus panaeati ZUG 2020: 56 
DistributionPapua New Guinea (Milne Bay Province, Panaeati Island)

Type locality: Papua New Guinea, Milne Bay Province, Panaeati Island [−10.6851° 152.3727°]  
TypesHolotype. AMS R4777, adult male, collected by A. H. S. Lucas on 04 April 1910 (Figure 24).
Paratypes. AMS R4779, adult female, and AMS R4778, adult male; both with same collecting data as holotype. 
DiagnosisDefinition. A bisexual taxon of geckos (Gekkoni- nae) with moderate adults (♀ 48 mm, ♂♂ 44–50 mm SVL) with keeled subcaudals, medium-sized postmental scales (14–16), no or slight postmental-infralabial contact (PmLab = 0–1), low number of dorsal tubercle rows (15–17) and moderate number of tubercles (25–27) in parasagittal row (TubRow), tubercles on dorsal surface of thigh and crus, and precloacal pores, males 7–8, females 0. Diagnostic summary in Table 8.

Variation. Females and males share metrics (adult ♀ 48.6 mm; adult ♂♂ 47.0, 44.2–49.0 mm SVL) and share similar proportions (total adult sample): TrunkL/SVL 38.3%, 38%–42%; HeadL/SVL 27.1%, 27%–28%; HeadW/SVL 17.8%, 17%–18%; HeadW/HeadL 65.6%, 64%–69%; EyeD/ SVL 7.1%, 7%–8%; EyeD/HeadL 26.1%, 25%–27%; NarEye/ HeadL 32.6%, 32%–34%; Interorb/HeadL 30.5%, 30%–31%; SnW/HeadL 16.0%, 15%–17%.
Typical head scale pattern of small, granular scales except for those bordering nares and mouth. Snout with large rostral scale bearing middorsal cleft posteriorly; supranasals moder- ate sized, usually in contact on midline or separated by small granular scale (internasal); 3 large supralabials and 3 infralabi- als in front of anterior edge of eye, first supra- and infralabial largest of respective series. Chin with large trapezoidal mental and usually moderate-sized postmentals (Postm = 14, 14–16) and usually no genial scale between postmental and first supral- abial (0, 0–1 PmLab); dorsally, trunk with 15, 15–17 (DorsTub) enlarged tubercles transversely on dorsum and with 26, 25–26 tubercles (TubRow) longitudinally along trunk; 10, 9–10 tuber- cle rows transversely between hindlimbs (TubHip). Uniform covering of small tuberculate-like scale on dorsal surface of fore- limb and enlarged tubercles on crus and femur (TubHindl = 2). Tail with small uniform scales dorsally and laterally, ventrally typically with uniform, small keeled scales (Subcaud = 0). Usu- ally, 2 cloacal spurs (2, 1–2 CloacS) on each side. Ventral scales from chin to vent small, granular, somewhat larger on chest and abdomen. Precloacal pores, males 7–8, females 0. Forefoot with narrow digits, their lengths usually 3≈4>2>5>1; 17, 15–17 lamel- lae beneath fourth digit (4FingLm), 6, 4–6 scale rows on palm; hindfoot with narrow digits, their lengths 4≈3>2≈5>1; 21, 20–22 lamellae beneath fourth toe (4ToeLm).
Coloration in life not reported; in alcohol similar to holotype. 
CommentDistribution: see map in Zug 2020: 53 (Fig. 22). 
EtymologyThe specific name derives directly from the geographic place name of the island of origin. 
  • Zug, George R. 2020. Diversity in Pacific Slender-Toed Geckos, Nactus pelagicus Complex (Reptilia: Squamata), of New Guinea and Adjacent Islands. Smithsonian Contributions to Zoology, (651): x + 92 pages - get paper here
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