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Genus
Tribolonotus

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Casque-headed Skinks, Helmeted Skinks, Crocodile Skinks, (Spiny-tailed Skinks)
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Helmskinke, Buschkrokodile
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Hjelmskinker
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1839 |  |
Tribolonotus Dumeril & Bibron (type species: Zonurus novaeguineae Schlegel 1834) |
1930 |  |
Pediporus Roux (type species: Tribolonotus schmidti Burt 1930; syn. Mittleman 1952) |
Contents:
10 species, of which 9 (90.0%) are endemic.
Endemism: 0% 100%
Distribution:
New Guinea (incl. satellites), Solomon Islands.
Reported from:
Indonesia
(Western New Guinea),
Papua New Guinea
(Bismarck Archipelago
[Admiralty Islands
(Manus)],
New Britain),
Eastern New Guinea,
North Solomon Islands
[Bougainville,
Buka]),
Solomon Islands
(incl.
Guadalcanal).
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Tribolonotus annectens

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New Britain Casque-headed Skink
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New-Britain-Helmskink
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New Britain-hjelmskink
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1966 |  |
Tribolonotus annectens Zweifel |

Remarks:
Tallowin & Allison (2013) erroneously included Umboi in the distribution of the species, referring to Zweifel (1966), who, in fact, does not mention any specimens from Umboi.
Distribution:
Papua New Guinea
(Bismarck Archipelago:
New Britain).
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Tribolonotus blanchardi

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Choiseul Casque-headed Skink, (Blanchard's Crocodile Skink)
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Choiseul-Helmskink
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Choiseul-hjelmskink
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1930 |  |
Tribolonotus blanchardi Burt |

Distribution:
Papua New Guinea
(North Solomon Islands
[Bougainville]),
Solomon Islands.
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Tribolonotus brongersmai

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Manus Island Casque-headed Skink
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Manus-Helmskink
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Manus-hjelmskink
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1972 |  |
Tribolonotus brongersmai Cogger |

Distribution:
Papua New Guinea
(Admiralty Islands:
Manus).
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Tribolonotus choiseulensis

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Choiseul Casque-headed Skink
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Choiseul-Helmskink
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Choiseul-hjelmskink
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2017 |  |
Tribolonotus choiseulensis Rittmeyer & Austin |

Remarks:
Previously regarded as a population of pseudoponceleti (e.g., McCoy 2006).
Distribution:
Solomon Islands
(Choiseul).
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Tribolonotus gracilis

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Red-eyed Casque-headed Skink
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Rotaugen-Helmskink
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Rødøjet Hjelmskink
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1909 |  |
Tribolonotus gracilis De Rooij |

Distribution:
Indonesia
(Western New Guinea),
Papua New Guinea
(Eastern New Guinea).
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Tribolonotus gracilis
© Rune Midtgaard
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Tribolonotus novaeguineae

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Papuan Casque-headed Skink
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Papuanischer Helmskink
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Papuansk Hjelmskink
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1834 |  |
Zonurus novaeguineae Schlegel |
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Tribolonotus novae-guineae Boulenger 1887 |

Distribution:
Indonesia
(Western New Guinea),
Papua New Guinea
(Eastern New Guinea).
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Tribolonotus parkeri

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Buka Casque-headed Skink
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Buka-Helmskink
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Buka-hjelmskink
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2017 |  |
Tribolonotus parkeri Rittmeyer & Austin |

Remarks:
Previously regarded as a population of pseudoponceleti (e.g., Greer & Parker 1968; McCoy 2006).
Distribution:
Papua New Guinea
(North Solomon Islands:
Buka).
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Tribolonotus ponceleti

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Greater Bougainville Casque-headed Skink, (Poncelet's Crocodile Skink)
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Grosser Bougainville-Helmskink
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Stor Bougainville-hjelmskink
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1937 |  |
Tribolonotus ponceleti Kinghorn |

Distribution:
Papua New Guinea
(North Solomon Islands
[Bougainville]),
Solomon Islands.
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Tribolonotus pseudoponceleti

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Lesser Bougainville Crocodile Skink, Western Crocodile Skink
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Kleiner Bougainville-Helmskink
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Lille Bougainville-hjelmskink
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1968 |  |
Tribolonotus pseudoponceleti Greer & Parker |

Remarks:
Now restricted to Bougainville.
Previously included the populations now assigned to choiseulensis and parkeri.
Records from Choiseul and Buka refer to these two species, respectively (Rittmeyer & Austin 2017).
Distribution:
Papua New Guinea
(North Solomon Islands:
Bougainville).
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Tribolonotus schmidti

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Guadalcanal Casque-headed Skink, (Schmidt's Crocodile Skink)
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Guadalcanal-Helmskink
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Guadalcanal-hjelmskink
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1930 |  |
Tribolonotus schmidti Burt |

Distribution:
Solomon Islands
(Guadalcanal).
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