Animalia > Chordata > Mammalia > Primates > Cheirogaleoidea > Cheirogaleidae > Allocebus > Allocebus trichotis

Allocebus trichotis (hairy-eared dwarf lemur)

Wikipedia Abstract

The hairy-eared dwarf lemur (Allocebus trichotis), or hairy-eared mouse lemur, is a nocturnal lemur endemic to Madagascar. It is the only member of the genus Allocebus. It was originally named by Gunter in 1875 as Cheirogaleus trichotis as part of the Cheirogaleidae family, or the dwarf lemurs. However, in 1967 the hairy-ear lemur was assigned its own genus by Petter-Rousseaux and Petter. This species is likely to be critically endangered and the population is estimated at 100–1000 individuals. Field research suggests distribution of the animal seems to be patchy and restrictive and they all live in a single location in the northeastern part of the country. Hairy-eared dwarf lemurs build leafy nests within trees to hibernate in.Their diet consists mostly of fruit, tree sap, and insects.
View Wikipedia Record: Allocebus trichotis

EDGE Analysis

The tiny hairy-eared dwarf lemur is one of the rarest of the surviving lemurs. Until its rediscovery in 1989, it was known from only five museum specimens, four of which were collected in the late nineteenth century. The species can be distinguished from the superficially similar mouse lemurs by the tufts of long wavy hair on the ears, which give rise to both the common and scientific names. Less than 1,000 individuals are thought to survive. These are threatened by habitat destruction resulting from slash-and-burn agriculture, which occurs even within protected areas. It is also caught in traps and eaten by local people.
Uniqueness Scale: Similiar (0) 
 Unique (100)
Uniqueness & Vulnerability Scale: Similiar & Secure (0) 
 Unique & Vulnerable (100)
ED Score: 26.73
View EDGE Record: Allocebus trichotis


Arboreal [1]  Yes
Nocturnal [1]  Yes
Adult Weight [2]  77.5 grams
Diet [3]  Frugivore, Herbivore
Diet - Fruit [3]  50 %
Diet - Plants [3]  50 %
Forages - Arboreal [3]  100 %


Name Countries Ecozone Biome Species Report Climate Land
Madagascar lowland forests Madagascar Afrotropic Tropical and Subtropical Moist Broadleaf Forests
Madagascar subhumid forests Madagascar Afrotropic Tropical and Subtropical Moist Broadleaf Forests

Protected Areas

Name IUCN Category Area acres Location Species Website Climate Land Use
Rainforests of the Atsinanana World Heritage Site 1185268 Toamasina, Madagascar  
Reserve de la Biosphere du Mananara Nord Biosphere Reserve 345948 Madagascar  
Reserve Speciale d'Anjanaharibe-Sud Special Reserve IV 45390 Madagascar  

Biodiversity Hotspots

Name Location Endemic Species Website
Madagascar and the Indian Ocean Islands Comoros, Madagascar, Mauritius, Seychelles Yes


Homo sapiens (man)[4]

Range Map



External References



Attributes / relations provided by
1Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2006. The Animal Diversity Web (online). Accessed February 01, 2010 at
2Felisa A. Smith, S. Kathleen Lyons, S. K. Morgan Ernest, Kate E. Jones, Dawn M. Kaufman, Tamar Dayan, Pablo A. Marquet, James H. Brown, and John P. Haskell. 2003. Body mass of late Quaternary mammals. Ecology 84:3403
3Hamish Wilman, Jonathan Belmaker, Jennifer Simpson, Carolina de la Rosa, Marcelo M. Rivadeneira, and Walter Jetz. 2014. EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95:2027
4Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics.
Ecoregions provided by World Wide Fund For Nature (WWF). WildFinder: Online database of species distributions, ver. 01.06 WWF WildFINDER
Protected Areas provided by Le Saout, S., Hoffmann, M., Shi, Y., Hughes, A., Bernard, C., Brooks, T.M., Bertzky, B., Butchart, S.H.M., Stuart, S.N., Badman, T. & Rodrigues, A.S.L. (2013) Protected areas and effective biodiversity conservation. Science, 342, 803–805
Biological Inventories of the World's Protected Areas in cooperation between the Information Center for the Environment at the University of California, Davis and numerous collaborators.
Biodiversity Hotspots provided by Critical Ecosystem Partnership Fund
Abstract provided by DBpedia licensed under a Creative Commons License