NATURAL HISTORY · CATALOGUE RECORD
Trindade Petrel
Pterodroma arminjoniana (Giglioli & Salvadori, 1869)
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.
Open encyclopedia reference
The Trindade petrel (Pterodroma arminjoniana), also known as the Round island petrel, is a species of seabird and a member of the gadfly petrels. The bird is 35–39 cm (14–15 in) in size, with an 88–102 cm (35–40 in) wingspan.
The petrel has various color morphs: dark and light, as well as intermediates between the two. Previously, two separate populations were considered conspecific, one occurring in the south Pacific, sometimes seen in Hawaii; the other occurring in the south Atlantic, nesting off Brazil, with regular sightings in the Gulf Stream off the southeastern United States. The little-known Pacific birds were then split and determined distinct as the Herald petrel, Pterodroma heraldica.
It uses oceanic islands and atolls, nesting on cliff ledges, ridges or rocky slopes. On some islands, nesting birds are threatened by feral cats and rats.
Due to ongoing habitat loss and small breeding range, this species is evaluated as vulnerable on the IUCN Red List of Threatened Species.
The specific name is after Vittorio Arminjon, captain of the ship during the voyage in which the specimen was collected.
Wikipedia contributors, Trindade petrel; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T04:47:00.433754+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Pterodroma arminjoniana (Giglioli & Salvadori, 1869)
- Name authority
- (Giglioli & Salvadori, 1869)
- Common name
- Trindade Petrel
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Aves
- Order
- Procellariiformes
- Family
- Procellariidae
- Genus
- Pterodroma
- Extinction status
- Recorded extant
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
- classAves
- orderProcellariiformes
- familyProcellariidae Leach, 1820
- genusPterodroma Bonaparte, 1856
- speciesPterodroma arminjoniana (Giglioli & Salvadori, 1869)
Close classified relatives
These entries share the source’s genus, Pterodroma. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Chatham Islands PetrelPterodroma axillaris (Salvin, 1893) | ProcellariidaeChordata | Accepted speciesRecorded extant |
| Barau's PetrelPterodroma baraui (Jouanin, 1964) | ProcellariidaeChordata | Accepted speciesRecorded extant |
| Bermuda PetrelPterodroma cahow (Nichols & Mowbray, 1916) | ProcellariidaeChordata | Accepted speciesRecorded extant |
| White-necked PetrelPterodroma cervicalis (Salvin, 1891) | ProcellariidaeChordata | Accepted speciesRecorded extant |
| Cook's PetrelPterodroma cookii (G. R. Gray, 1843) | ProcellariidaeChordata | Accepted speciesRecorded extant |
| Masatierra PetrelPterodroma defilippiana (Giglioli & Salvadori, 1869) | ProcellariidaeChordata | Accepted speciesRecorded extant |
| Desertas PetrelPterodroma deserta Mathews, 1934 | ProcellariidaeChordata | Accepted speciesRecorded extant |
| Juan Fernandez PetrelPterodroma externa (Salvin, 1875) | ProcellariidaeChordata | Accepted speciesRecorded extant |
| Herald PetrelPterodroma heraldica (Salvin, 1888) | ProcellariidaeChordata | Accepted speciesRecorded extant |
| Mottled PetrelPterodroma inexpectata (J. R. Forster, 1844) | ProcellariidaeChordata | Accepted speciesRecorded extant |
| Gould's PetrelPterodroma leucoptera (Gould, 1844) | ProcellariidaeChordata | Accepted speciesRecorded extant |
| Kermadec PetrelPterodroma neglecta (Schlegel, 1863) | ProcellariidaeChordata | Accepted speciesRecorded extant |
Names & synonyms
Names explicitly linked to this accepted taxon in the source. Synonymy can change with revision.
| Recorded name | Source status |
|---|---|
| Pterodroma arminjoniana arminjoniana (Giglioli & Salvadori, 1869) (Giglioli & Salvadori, 1869) | synonym |
| Aestrelata arminjoniana Giglioli & Salvadori, 1869 Giglioli & Salvadori, 1869 | synonym |
Documented distribution
Source distribution statements, not a complete range map. A listed locality is not necessarily a place of origin.
Caribbean
Oceania
South America
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://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=174570 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. A suitable sourced image remains to be added.
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:4PWK5. Classification follows source parent identifiers. English common names may vary by region.