Oryzorictinae is a
subfamily
In biological classification, a subfamily (Latin: ', plural ') is an auxiliary (intermediate) taxonomic rank, next below family but more inclusive than genus. Standard nomenclature rules end botanical subfamily names with "-oideae", and zo ...
of
tenrec
A tenrec () is a mammal belonging to any species within the afrotherian family Tenrecidae, which is endemic to Madagascar. Tenrecs are a very diverse group, as a result of adaptive radiation, and exhibit convergent evolution, some resemble hed ...
s
endemic
Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also foun ...
to the island of
Madagascar
Madagascar, officially the Republic of Madagascar, is an island country that includes the island of Madagascar and numerous smaller peripheral islands. Lying off the southeastern coast of Africa, it is the world's List of islands by area, f ...
.
It is the largest of three tenrec subfamilies. Oryzorictinae is thought to have split from the lineage of its closest relative, ''
Geogale'', about 30 million years (
Ma) ago. The deepest phylogenetic split within the subfamily, that between ''
Oryzorictes'' and a
clade
In biology, a clade (), also known as a Monophyly, monophyletic group or natural group, is a group of organisms that is composed of a common ancestor and all of its descendants. Clades are the fundamental unit of cladistics, a modern approach t ...
composed of ''Microgale'' plus ''Nesogale'', is thought to have occurred about 28 Ma ago. In turn, ''Microgale'' and ''Nesogale'' are thought to have diverged about 19 Ma ago.
Species
Subfamily Oryzorictinae
* Genus ''
Microgale''
**
Short-tailed shrew tenrec (''M. brevicaudata'')
**
Cowan's shrew tenrec (''M. cowani'')
**
Drouhard's shrew tenrec (''M. drouhardi'')
**
Dryad shrew tenrec (''M. dryas'')
**
Pale shrew tenrec (''M. fotsifotsy'')
**
Gracile shrew tenrec (''M. gracilis'')
**
Grandidier's shrew tenrec (''M. grandidieri'')
**
Naked-nosed shrew tenrec
The naked-nosed shrew tenrec (''Microgale gymnorhyncha'') is a species of mammal in the family Tenrecidae. It is endemic to Madagascar. Its natural habitats are subtropical and tropical subtropical or tropical moist lowland forest, moist lowland ...
(''M. gymnorhyncha'')
**
Jenkins's shrew tenrec (''M. jenkinsae'')
**
Northern shrew tenrec (''M. jobihely'')
**
Lesser long-tailed shrew tenrec (''M. longicaudata'')
**''
Microgale macpheei'' (extinct)
**
Major's long-tailed tenrec (''M. majori'')
**
Web-footed tenrec (''M. mergulus'')
**
Montane shrew tenrec (''M. monticola'')
**
Nasolo's shrew tenrec (''M. nasoloi'')
**
Pygmy shrew tenrec (''M. parvula'')
**
Greater long-tailed shrew tenrec (''M. principula'')
**
Least shrew tenrec (''M. pusilla'')
**
Shrew-toothed shrew tenrec (''M. soricoides'')
**
Taiva shrew tenrec (''M. taiva'')
**
Thomas's shrew tenrec (''M. thomasi'')
* Genus ''
Nesogale
''Nesogale'' is a genus of tenrecs, which are a family of afrotherian mammals endemic to Madagascar. On the basis of molecular data indicating its two species form a sister group to the rest of ''Microgale'' (21 extant species), they were transfe ...
''
**
Dobson's shrew tenrec (''N. dobsoni'')
**
Talazac's shrew tenrec (''N. talazaci'')
* Genus ''
Oryzorictes''
**
Mole-like rice tenrec (''O. hova'')
**
Four-toed rice tenrec (''O. tetradactylus'')
See also
*
Convergent evolution
Convergent evolution is the independent evolution of similar features in species of different periods or epochs in time. Convergent evolution creates analogous structures that have similar form or function but were not present in the last comm ...
*
List of mammals of Madagascar
This is a list of the native wild mammal species recorded in Madagascar. As of June 2014 (following the IUCN reassessment of the lemurs) there are 241 extant taxon, extant mammal species recognized in Madagascar, of which 22 are critically endanger ...
References
Afrosoricida
Mammal subfamilies
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