Baikal Seal

Open encyclopedia reference

The Baikal seal (Pusa sibirica), also known as Lake Baikal seal or nerpa (нерпа), is a species of earless seal endemic to Lake Baikal in Siberia, Russia. The Baikal seal is one of the smallest earless/true seals, and one of the few exclusively freshwater pinniped species. The related Caspian seal inhabits another lake, albeit being saltwater, the Caspian Sea. Both species are closely related to the ringed seal, which inhabits the Arctic Ocean.

A subpopulation of inland harbour seals living in the Hudson Bay region of Quebec, Canada (the Lacs des Loups Marins harbour seals), as well as the Saimaa ringed seal and the Ladoga seal (both ringed seal subspecies), are also found in fresh water, but these seals are part of species that also have marine populations, instead of being distinct species.

The most recent population estimates are 80,000 to 100,000 animals, roughly equaling the expected carrying capacity of the lake. At present, the species is not considered threatened.

Wikipedia contributors, Baikal seal; 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

Pusa sibirica (Gmelin, 1788)

Name authority

(Gmelin, 1788)

Common name

Baikal Seal

Rank

species

Accepted status

accepted

Kingdom

Animalia

Phylum

Chordata

Class

Mammalia

Order

Carnivora

Family

Phocidae

Genus

Pusa

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.

1. domainEukaryota (Chatton, 1925) Whittaker & Margulis, 1978
2. kingdomAnimalia
3. phylumChordata
4. subphylumVertebrata
5. infraphylumGnathostomata
6. parvphylumOsteichthyes
7. megaclassTetrapoda
8. classMammalia Linnaeus, 1758
9. subclassTheria Parker & Haswell, 1897
10. infraclassEutheria Gill, 1872
11. orderCarnivora Bowdich, 1821
12. suborderCaniformia Kretzoi, 1938
13. familyPhocidae Gray, 1821
14. genusPusa Scopoli, 1771
15. speciesPusa sibirica (Gmelin, 1788)

Close classified relatives

These entries share the source’s genus, Pusa. They are not necessarily the closest relatives established by molecular evidence.

Browse 17 records assigned to Phocidae.

Names & synonyms

Names explicitly linked to this accepted taxon in the source. Synonymy can change with revision.

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.

1. https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=622020 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:4QKSQ. Classification follows source parent identifiers. English common names may vary by region.