Gymnures, also called hairy hedgehogsormoonrats, are mammals belonging to the subfamily Galericinae, in the family Erinaceidae and the order Eulipotyphla. Gymnures resemble rats but are not closely related as they are not rodents; they are instead closely related to hedgehogs, which also belong to Erinaceidae. They are thought to have appeared in Eastern Asia before their closest relatives, and changed little from the original ancestor, which is thought to have been also the ancestor of the shrews.
Although the gymnures are more closely related to the hedgehogs, full-grown gymnures superficially resemble large rats, shrews, and opossums.
The gymnure's body plan is believed to resemble that of the earliest mammals,[citation needed] with a large, toothy head about 1/3 the length of the total body, a naked furless tail for balance and thermoregulatory purposes, and a plantigrade stance. In direct contrast to the closely related hedgehogs, gymnures are not spiny.[6]
They also have an outstanding sense of smell, and tactile response in the snout region.
Gymnures keep territories, and individuals are solitary except when breeding. Gymnures have a very strong scent, typically described as a rancid garlicoronion smell, which is produced by its territory-marking scent glands. Several creatures similar in form and niche, such as the opossum and solenodon, have an odor similar to the gymnure's.
This subfamily has alternately been called Echinosoricinae, Galericinae, and Hylomyinae. Some researchers prefer Hylomyinae because the specific relationships of the extinct genus Galerix to living erinaceids are uncertain.[7]
There are fifteen extant species in six genera:[1][8]
^Masini, F.; Fanfani, F. (2013). "Apulogalerix pusillus nov. gen., nov. sp., the small-sized Galericinae (Erinaceidae, Mammalia) from the "Terre Rosse" fissure filling of the Gargano (Foggia, South-Eastern Italy)". Geobios. 46 (1–2): 89–104. doi:10.1016/j.geobios.2012.10.008.
^Jiménez-Hidalgo, E.; Guerrero-Arenas, R.; Crespo, V. D. (2022). "First galericine erinaceid (Mammalia: Eulipotyphla) from the early Oligocene of tropical North America". Historical Biology: 1–6. doi:10.1080/08912963.2022.2070018. S2CID248467861.
^Feldhamer, George [and 4 others] (2015). Mammalogy: Adaptation, Diversity, Ecology, Edition 4. Baltimore: Johns Hopkins University Press. p. 285. ISBN978-1-4214-1588-8.{{cite book}}: CS1 maint: numeric names: authors list (link)
^Gould, G.C. (1995). "Hedgehog phylogeny (Mammalia, Erinaceidae) – the reciprocal illumination of the quick and the dead". American Museum Novitates (3131): 1–45. hdl:2246/3665.
