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NATURAL HISTORY · CATALOGUE RECORD

Montagne d'Ambre Mouse Lemur

Microcebus arnholdi Louis Jr., Engberg, McGuire, McCormick, Randriamampionona, Ranaivoarisoa, Bailey et al., 2008

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.

Arnhold's mouse lemur (Microcebus arnholdi) range

Arnhold's mouse lemur (Microcebus arnholdi) range

derivative work: Alex Dunkel (Maky) Madagascar range map template.svg: Alex Dunkel (Maky) IUCN Red List of Threatened Species (English). iucnredlist.org. Retrieved on 2025-09-01. (Distribution data) · CC BY 3.0 · Image source

Provider-generated thumbnail requested at 800 pixels; no local editing Local WebP display rendition; resized without cropping.

Open encyclopedia reference

Arnhold's mouse lemur or the Montagne d'Ambre mouse lemur (Microcebus arnholdi) is a species of mouse lemur endemic to Madagascar. Its holotype was first collected on 27 November 2005, and was first described in 2008. According to genetic tests, it is genetically distinct from its closest sister taxa, the Sambirano mouse lemur (M. sambiranensis).

It is a medium-sized mouse lemur, weighing approximately 49.7 grams (1.75 oz), with a body length of 8.1 cm (3.2 in) and a tail length of 12.9 cm (5.1 in). It is found in the montane rainforest of Montagne d'Ambre National Park and Montagne d'Ambre Special Reserve in northern Madagascar.

Wikipedia contributors, Arnhold'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 2026-10-05T12:48:52.297932+00:00. This reference remains separate from the taxonomic record.

Identity & source status

Scientific name
Microcebus arnholdi Louis Jr., Engberg, McGuire, McCormick, Randriamampionona, Ranaivoarisoa, Bailey et al., 2008
Name authority
Louis Jr., Engberg, McGuire, McCormick, Randriamampionona, Ranaivoarisoa, Bailey et al., 2008
Common name
Montagne d'Ambre 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 arnholdi Louis Jr., Engberg, McGuire, McCormick, Randriamampionona, Ranaivoarisoa, Bailey et al., 2008

Close classified relatives

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

SpeciesClassificationSource status
Berthe's Mouse LemurMicrocebus berthae Rasoloarison, Goodman & Ganzhorn, 2000CheirogaleidaeChordataAccepted speciesRecorded extant
Bongolava Mouse LemurMicrocebus bongolavensis Olivieri, Zimmermann, Randrianambinina, Rassoloharijaona, Rakotondravony, Gsuchanski et al., 2006CheirogaleidaeChordataAccepted speciesRecorded extant
Gerp's Mouse LemurMicrocebus gerpi Radespiel, Ratsimbazafy, Rasoloharijaona, Raveloson, Andriaholinirina, Rakotondravony et al., 2011CheirogaleidaeChordataAccepted speciesRecorded extant
Jolly's Mouse LemurMicrocebus jollyae Louis Jr., Coles, Andriantompohavana, Sommer, Engberg, Zaonarivelo, Mayor & Brenneman, 2006CheirogaleidaeChordataAccepted speciesRecorded extant
Marohita Mouse LemurMicrocebus marohita Rasoloarison, Weisrock, Yoder, Rakotondravony & Kappeler, 2013CheirogaleidaeChordataAccepted speciesRecorded extant
Gray Mouse LemurMicrocebus murinus (J. F. Miller, 1777)CheirogaleidaeChordataAccepted speciesRecorded extant
Peters' Mouse LemurMicrocebus myoxinus Peters, 1852CheirogaleidaeChordataAccepted speciesRecorded extant
Golden-brown Mouse LemurMicrocebus ravelobensis Zimmerman, Ehresmann, Zeitemann, Radespiel, Randrianambinina & Rakotoarison, 1997CheirogaleidaeChordataAccepted speciesRecorded extant
Brown Mouse LemurMicrocebus rufus (Lesson, 1840)CheirogaleidaeChordataAccepted speciesRecorded extant
Northern Rufous Mouse LemurMicrocebus tavaratra Rasoloarison, Goodman & Ganzhorn, 2000CheirogaleidaeChordataAccepted speciesRecorded extant
Margot Marsh's Mouse LemurMicrocebus margotmarshae Louis Jr., Engberg, McGuire, McCormick, Randriamampionona, Ranaivoarisoa, Bailey et al., 2008CheirogaleidaeChordataAccepted speciesRecorded extant
Jonah's Mouse LemurMicrocebus jonahi Schüssler, Blanco, Salmona, Poelstra, Andriambeloson, Miller, Randrianambinina et al., 2020CheirogaleidaeChordataAccepted speciesRecorded extant

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.

Africa

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=944032 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:6RFN3. Classification follows source parent identifiers. English common names may vary by region.