Azorean Bat
Nyctalus azoreum (Thomas, 1901)
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.

Adult specimen of Azores Noctule (Nyctalus azoreum)
Filipe Lopes · CC BY-SA 3.0 · Image sourceProvider-generated thumbnail requested at 320 pixels; no local editing Local WebP display rendition; resized without cropping.
Open encyclopedia reference
The Azores noctule (Nyctalus azoreum) is a species of bat found in the dry forests of the Azores. It is the only species of mammal endemic to the Azores. It has been recorded on most of the islands of the Azores, and remains common on some but is rare on others. Its numbers are threatened due to habitat loss caused by humans, and the remaining populations are quite fragmented. It is known to roost in hollowed-out trees, buildings, and caves. The species is related to the widespread lesser noctule, and in the past was treated as a subspecies of that species. Genetic studies have found that it originated recently from lesser noctules which colonised the Azores, and has low levels of genetic divergence from its parent species. It nevertheless is much smaller than the lesser noctule and weighs less, has darker fur and has a different frequency of echolocation calls (about 4–5 Hz higher), and is usually treated as a separate species.
Wikipedia contributors, Azores noctule; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T02:09:02.855555+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Nyctalus azoreum (Thomas, 1901)
- Name authority
- (Thomas, 1901)
- Common name
- Azorean Bat
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Mammalia
- Order
- Chiroptera
- Family
- Vespertilionidae
- Genus
- Nyctalus
- 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
- classMammalia Linnaeus, 1758
- subclassTheria Parker & Haswell, 1897
- infraclassEutheria Gill, 1872
- orderChiroptera Blumenbach, 1779
- suborderYangochiroptera Koopman, 1984
- superfamilyVespertilionoidea Gray, 1821
- familyVespertilionidae Gray, 1821
- subfamilyVespertilioninae Gray, 1821
- tribePipistrellini Tate, 1942
- genusNyctalus Bowditch, 1825
- speciesNyctalus azoreum (Thomas, 1901)
Close classified relatives
These entries share the source’s genus, Nyctalus. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Japanese Lesser NoctuleNyctalus furvus Imaizumi & Yoshiyuki, 1968 | VespertilionidaeChordata | Accepted speciesRecorded extant |
| Common NoctuleNyctalus noctula (Schreber, 1774) | VespertilionidaeChordata | Accepted speciesRecorded extant |
| Chinese NoctuleNyctalus plancyi (Gerbe, 1880) | VespertilionidaeChordata | Accepted speciesRecorded extant |
| Leisler's NoctuleNyctalus leisleri (Kuhl, 1817) | VespertilionidaeChordata | Accepted speciesRecorded extant |
| Bird-like NoctuleNyctalus aviator (Thomas, 1911) | VespertilionidaeChordata | Accepted speciesRecorded extant |
| Giant NoctuleNyctalus lasiopterus (Schreber, 1780) | VespertilionidaeChordata | Accepted speciesRecorded extant |
| Himalayan NoctuleNyctalus montanus (Barrett-Hamilton, 1906) | VespertilionidaeChordata | Accepted speciesRecorded extant |
Names & synonyms
Names explicitly linked to this accepted taxon in the source. Synonymy can change with revision.
| Recorded name | Source status |
|---|---|
| Pterygistes azoreum Thomas, 1901 Thomas, 1901 | synonym |
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://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=632064 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:484X6. Classification follows source parent identifiers. English common names may vary by region.