Berthe's Mouse Lemur

Open encyclopedia reference

Madame Berthe's mouse lemur (Microcebus berthae) or Berthe's mouse lemur is the smallest of the mouse lemurs and the smallest primate in the world; the average body length is 9.2 cm (3.6 in) and seasonal weight is around 30 g (1.1 oz). Microcebus berthae is one of many species of Malagasy lemurs that came about through extensive speciation, caused by unknown environmental mechanisms and conditions.

This primate is found chiefly in the Kirindy Forest in western Madagascar. After its discovery in 1992 in the dry deciduous forest of western Madagascar, it was initially thought to represent a rediscovery of M. myoxinus, but comparative morphometric and genetic studies revealed its status as a new species, M. berthae.

This lemur is named after the conservationist and primatologist Berthe Rakotosamimanana of Madagascar, who was the Secretary General of the Groupe d'Etudes et de Recherche des Primates (GERP) from its founding until her death in 2005.

Wikipedia contributors, Madame Berthe's mouse lemur; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T08:34:00.420110+00:00. This reference remains separate from the taxonomic record.

Identity & source status

Scientific name

Microcebus berthae Rasoloarison, Goodman & Ganzhorn, 2000

Name authority

Rasoloarison, Goodman & Ganzhorn, 2000

Common name

Berthe's Mouse Lemur

Rank

species

Accepted status

accepted

Kingdom

Animalia

Phylum

Chordata

Class

Mammalia

Order

Primates

Family

Cheirogaleidae

Genus

Microcebus

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. orderPrimates Linnaeus, 1758
12. suborderStrepsirrhini É. Geoffroy Saint-Hilaire, 1812
13. infraorderLemuriformes Gray, 1821
14. superfamilyCheirogaleoidea Gray, 1873
15. familyCheirogaleidae Gray, 1873
16. genusMicrocebus É. Geoffroy Saint-Hilaire, 1834
17. speciesMicrocebus berthae Rasoloarison, Goodman & Ganzhorn, 2000

Close classified relatives

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

Browse 39 records assigned to Cheirogaleidae.

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=944023 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:42SBF. Classification follows source parent identifiers. English common names may vary by region.