NATURAL HISTORY · CATALOGUE RECORD
Tribolonotus gracilis de Rooij, 1909
Source-backed taxonomic record
Accepted species in Catalogue of Life’s 11 September 2026 base release. This preserves the source classification and available supporting data; it is not a completed species monograph.
Tribolonotus gracilis
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Open encyclopedia reference
Tribolonotus gracilis, commonly known as the red-eyed crocodile skink or New Guinea crocodile skink, is a species of skink that is endemic to New Guinea, where it lives in tropical rainforest habitats. It was first described by Nelly de Rooij in 1909. It is sometimes kept as an exotic pet.
Wikipedia contributors, Red-eyed crocodile skink; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T14:55:08.997137+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Tribolonotus gracilis de Rooij, 1909
- Name authority
- de Rooij, 1909
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Reptilia
- Order
- Squamata
- Family
- Scincidae
- Genus
- Tribolonotus
- Extinction status
- Not supplied by this source
Classification family tree
Nested taxonomic groups from the source. This is not a direct-ancestor chain, a dated evolutionary tree or a phylogenetic reconstruction.
- domainEukaryota (Chatton, 1925) Whittaker & Margulis, 1978
- kingdomAnimalia
- phylumChordata
- subphylumVertebrata
- infraphylumGnathostomata
- parvphylumOsteichthyes
- megaclassTetrapoda
- classReptilia Laurenti, 1768
- orderSquamata Oppel, 1811
- suborderAutarchoglossa
- familyScincidae
- subfamilyEgerniinae
- genusTribolonotus
- speciesTribolonotus gracilis de Rooij, 1909
Close classified relatives
These entries share the source’s genus, Tribolonotus. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Zweifel's Helmet SkinkTribolonotus annectens Zweifel, 1966 | ScincidaeChordata | Accepted speciesExtinction status not supplied |
| Poncelet's Helmet SkinkTribolonotus ponceleti Kinghorn, 1937 | ScincidaeChordata | Accepted speciesExtinction status not supplied |
| False Poncelet's Helmet SkinkTribolonotus pseudoponceleti Greer & Parker, 1968 | ScincidaeChordata | Accepted speciesExtinction status not supplied |
| Schmidt's Helmet SkinkTribolonotus schmidti Burt, 1930 | ScincidaeChordata | Accepted speciesExtinction status not supplied |
| Tribolonotus choiseulensis Rittmeyer & Austin, 2017 | ScincidaeChordata | Accepted speciesExtinction status not supplied |
| Blanchard's Helmet SkinkTribolonotus blanchardi Burt, 1930 | ScincidaeChordata | Accepted speciesExtinction status not supplied |
| Brongersma's Helmet SkinkTribolonotus brongersmai Cogger, 1972 | ScincidaeChordata | Accepted speciesExtinction status not supplied |
| Spiny SkinkTribolonotus novaeguineae (Schlegel, 1834) | ScincidaeChordata | Accepted speciesExtinction status not supplied |
Documented distribution
Source distribution statements, not a complete range map. A listed locality is not necessarily a place of origin.
Source literature & publication evidence
References attached to this source record, including nomenclatural citations where supplied. This is a selected bibliography; abbreviated citations remain in the source’s form.
- https://reptile-database.reptarium.cz/species?genus=Tribolonotus&species=gracilis Source fields: Taxon.tsv dwc:namePublishedIn, Taxon.tsv dcterms:references
Origins, evidence & remaining research
Name authority and publication references document nomenclature where the source supplies it. They do not establish evolutionary origins or the earliest fossil occurrence.
Specimen-level evidence, morphology, ecological research, phylogenetic studies, a comprehensive bibliography and a located literary passage have not yet been compiled for this record.
Dataset citation & attribution
This exact taxon in ChecklistBank · Catalogue of Life 2026-09-11
Catalogue of Life 2026-09-11; dataset 316321; doi:10.48580/dgz5n. https://creativecommons.org/licenses/by/4.0/ . Retrieved 5 October 2026.
Stable key: col:586C5. Classification follows source parent identifiers. English common names may vary by region.