Mustelidae

Mustelidae; Temporal range: Oligocene–Recent PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Carnivora
Superfamily:	Musteloidea
Family:	Mustelidae; G. Fischer de Waldheim, 1817
Type genus
	Mustela; Linnaeus, 1758
Subfamilies
	Guloninae (martens, tayra, fisher, wolverine); Helictidinae (ferret-badgers); Ictonychinae (grisons, African polecats); Lutrinae (otters); Melinae (Eurasian badgers); Mellivorinae (honey badger); Mustelinae (weasels); Taxidiinae (American badger); †Oligobuninae;
	The native distribution and density of extant mustelid species.

The Mustelidae (/mʌˈstɛlɪdiː/;^[2] from Latin mustela, weasel) are a diverse family of carnivoran mammals, including weasels, badgers, otters, polecats, martens, grisons, and wolverines. Otherwise known as mustelids (/ˈmʌstɪlɪdz/^[3]), they form the largest family in the suborder Caniformia of the order Carnivora with about 66 to 70 species in nine subfamilies.^[4]

Variety

*Sthenictis* sp. (American Museum of Natural History)

Mustelids vary greatly in size and behaviour. The smaller variants of the least weasel can be under 20 cm (8 in) in length, while the giant otter of Amazonian South America can measure up to 1.7 m (5 ft 7 in) and sea otters can exceed 45 kg (99 lb) in weight. Wolverines can crush bones as thick as the femur of a moose to get at the marrow, and have been seen attempting to drive bears away from their kills. The sea otter uses rocks to break open shellfish to eat. Martens are largely arboreal, while European badgers dig extensive tunnel networks, called setts. Only one mustelid has been domesticated; the ferret. Tayra are also kept as pets (although they require a Dangerous Wild Animals licence in the UK), or as working animals for hunting or vermin control. Others have been important in the fur trade—the mink is often raised for its fur.

Being one of the most species-rich families in the order Carnivora, the family Mustelidae also is one of the oldest. Mustelid-like forms first appeared about 40 million years ago (Mya), roughly coinciding with the appearance of rodents. The common ancestor of modern mustelids appeared about 18 Mya.^[4]

Characteristics

Within a large range of variation, the mustelids exhibit some common characteristics. They are typically small animals with elongated bodies, short legs, short skulls, short, round ears, and thick fur.^[5] Mustelids' long, slender body structure is adapted to three main lifestyles: terrestrial, arboreal, and aquatic/semi-aquatic.^[6] They exhibit digitigrade or plantigrade locomotion, with five toes on each foot, enabling them to move in different ways (i.e. digging, climbing, swimming).^[7] Most mustelids are solitary, nocturnal animals, and are active year-round.^[8] Their dense fur, often serving as natural camouflage, undergoes seasonal changes to help them adjust to varying environmental conditions.^[6]

With the exception of the sea otter^[9] they have anal scent glands that produce a strong-smelling secretion the animals use for sexual signalling and marking territory.

Mustelids exhibit sexual dimorphism, with males being larger than females, but degree varies between species as well as geographically within species.^[6] Male mustelids have a bifurcated penis and baculum.^[7] Most mustelid reproduction involves embryonic diapause.^[10] The embryo does not immediately implant in the uterus, but remains dormant for some time. No development takes place as long as the embryo remains unattached to the uterine lining. As a result, the normal gestation period is extended, sometimes up to a year. This allows the young to be born under favourable environmental conditions. Reproduction has a large energy cost, so it is to a female's benefit to have available food and mild weather. The young are more likely to survive if birth occurs after previous offspring have been weaned.

Mustelids are predominantly carnivorous, although some eat vegetable matter at times. While not all mustelids share an identical dentition, they all possess teeth adapted for eating flesh, including the presence of shearing carnassials. One characteristic trait is a meat-shearing upper-back molar that is rotated 90°, towards the inside of the mouth.^[11]^[12] With variation between species, the most common dental formula is 3.1.3.13.1.3.2.^[8]

Ecology

The fisher, tayra, and martens are partially arboreal, while badgers are fossorial. A number of mustelids have aquatic lifestyles, ranging from semiaquatic minks and river otters to the fully aquatic sea otter, which is one of the few nonprimate mammals known to use tools while foraging. It uses "anvil" stones to crack open the shellfish that form a significant part of its diet. It is a "keystone species", keeping its prey populations in balance so some do not outcompete the others and destroy the kelp in which they live.

The black-footed ferret is entirely dependent on another keystone species, the prairie dog. A family of four ferrets eats 250 prairie dogs in a year; this requires a stable population of prairie dogs from an area of some 500 acres (2.0 km²).

Animals of similar appearance

Skunks were previously included as a subfamily of the mustelids, but DNA research placed them in their own separate family (Mephitidae).^[13] Mongooses bear a striking resemblance to many mustelids, but belong to a distinctly different suborder—the Feliformia (all those carnivores sharing more recent origins with the cats) and not the Caniformia (those sharing more recent origins with the dogs). Because mongooses and mustelids occupy similar ecological niches, convergent evolution has led to similarity in form and behavior.^[14]

Human uses

Several mustelids, including the mink, the sable (a type of marten), and the stoat (ermine), possess furs that are considered beautiful and valuable, so have been hunted since prehistoric times. From the early Middle Ages, the trade in furs was of great economic importance for northern and eastern European nations with large native populations of fur-bearing mustelids, and was a major economic impetus behind Russian expansion into Siberia and French and English expansion in North America. In recent centuries fur farming, notably of mink, has also become widespread and provides the majority of the fur brought to market.

One species, the sea mink (Neogale macrodon) of New England and Canada, was driven to extinction by fur trappers. Its appearance and habits are almost unknown today because no complete specimens can be found and no systematic contemporary studies were conducted.

The sea otter, which has the densest fur of any animal,^[15] narrowly escaped the fate of the sea mink. The discovery of large populations in the North Pacific was the major economic driving force behind Russian expansion into Kamchatka, the Aleutian Islands, and Alaska, as well as a cause for conflict with Japan and foreign hunters in the Kuril Islands. Together with widespread hunting in California and British Columbia, the species was brought to the brink of extinction until an international moratorium came into effect in 1911.

Today, some mustelids are threatened for other reasons. Sea otters are vulnerable to oil spills and the indirect effects of overfishing; the black-footed ferret, a relative of the European polecat, suffers from the loss of American prairie; and wolverine populations are slowly declining because of habitat destruction and persecution. The rare European mink (Mustela lutreola) is one of the most endangered mustelid species.^[16]

The ferret, a domesticated European polecat, is a fairly common pet.

Evolution and systematics

Mustelidae is a subfamily in Musteloidia, a superfamily of mammals that is united by shared skull and teeth characteristics. Mustelids are believed to have separated from their next closest related family, Procyonidae, around 29 million years ago.^[17] The oldest known mustelid from North America is Corumictis wolsani from the early and late Oligocene (early and late Arikareean, Ar1–Ar3) of Oregon.^[1] Middle Oligocene Mustelictis from Europe might be a mustelid, as well.^[1] Other early fossils of the mustelids were dated at the end of the Oligocene to the beginning of the Miocene. Which of these forms are Mustelidae ancestors and which should be considered the first mustelids is unclear.^[18]

The fossil record indicates that mustelids appeared in the late Oligocene period (33 Mya) in Eurasia and migrated to every continent except Antarctica and Australia (all the continents that were connected during or since the early Miocene). They reached the Americas via the Bering land bridge.

The 68 recent mustelids (66 extant species) are classified into eight subfamilies in 22 genera:^[4]^[19]

Subfamily Taxidiinae

Genus Taxidea
- American badger, T. taxus

Subfamily Mellivorinae

Genus Mellivora
- Honey badger, M. capensis

Subfamily Melinae

Genus Arctonyx
- Northern hog badger, A. albogularis
- Greater hog badger, A. collaris
- Sumatran hog badger, A. hoevenii
Genus Meles
- Japanese badger, M. anakuma
- Asian badger, M. leucurus
- European badger, M. meles
- Caucasian badger, M. canescens

Subfamily Helictidinae

Genus Melogale
- Vietnam ferret-badger, M. cucphuongensis
- Bornean ferret-badger, M. everetti
- Chinese ferret-badger, M. moschata
- Javan ferret-badger, M. orientalis
- Burmese ferret-badger, M. personata
- Formosan ferret-badger, M. subaurantiaca

Subfamily Guloninae^[20]

Genus Eira
- Tayra, E. barbara
Genus Gulo
- Wolverine, G. gulo
Genus Martes
- American marten, M. americana
- Pacific marten, M. caurina
- Yellow-throated marten, M. flavigula
- Beech marten, M. foina
- Nilgiri marten, M. gwatkinsii
- European pine marten, M. martes
- Japanese marten, M. melampus
- Sable, M. zibellina
Genus Pekania
- Fisher, P. pennanti

Subfamily Ictonychinae^[20]

Genus Galictis
- Lesser grison, G. cuja
- Greater grison, G. vittata
Genus Ictonyx
- Saharan striped polecat, I. libycus
- Striped polecat, I. striatus
Genus Lyncodon
- Patagonian weasel, L. patagonicus
Genus Poecilogale
- African striped weasel, P. albinucha
Genus Vormela
- Marbled polecat, V. peregusna

Subfamily Lutrinae (otters)

Genus Aonyx
- African clawless otter, A. capensis
- Asian small-clawed otter, A. cinerea
- Congo clawless otter, A. congicus
Genus Enhydra
- Sea otter, E. lutris
Genus Lontra
- North American river otter, L. canadensis
- Marine otter, L. felina
- Neotropical otter, L. longicaudis
- Southern river otter, L. provocax
Genus Lutra
- Eurasian otter, L. lutra
- Hairy-nosed otter, L. sumatrana
- † Japanese otter. L. nippon
Genus Hydrictis
- Spotted-necked otter, H. maculicollis
Genus Lutrogale
- Smooth-coated otter, L. perspicillata
Genus Pteronura
- Giant otter, P. brasiliensis

Subfamily Mustelinae (weasels, ferrets, and mink)

Genus Mustela
- Mountain weasel, M. altaica
- Stoat (Beringian ermine), M. erminea
- Steppe polecat, M. eversmannii
- Domestic ferret, M. furo
- Haida ermine, M. haidarum
- Japanese weasel, M. itatsi
- Yellow-bellied weasel, M. kathiah
- European mink, M. lutreola
- Indonesian mountain weasel, M. lutreolina
- Black-footed ferret, M. nigripes
- Least weasel, M. nivalis
- Malayan weasel, M. nudipes
- European polecat, M. putorius
- American ermine, M. richardsonii
- Siberian weasel, M. sibirica
- Back-striped weasel, M. strigidorsa
Genus Neogale^[21]
- Amazon weasel, N. africana
- Colombian weasel, N. felipei
- Long-tailed weasel, N. frenata
- American mink, N. vison
- †Sea mink, N. macrodon

Fossil mustelids Extinct genera of the family Mustelidae include:

Phylogeny

Multigene phylogenies constructed by Koepfli et al. (2008)^[24] and Law et al. (2018)^[4] found that Mustelidae comprises eight living subfamilies. The early mustelids appear to have undergone two rapid bursts of diversification in Eurasia, with the resulting species spreading to other continents only later.^[24]

Phylogenetic tree of Mustelidae. Contains 53 of the 79 putative mustelid species.^[4]
Time-calibrated tree of Mustelidae showing divergence times between lineages. Split times include: 28.8 million years (Ma) for mustelids vs. procyonids; 17.8 Ma for Taxidiinae; 15.5 Ma for Mellivorinae; 14.8 Ma for Melinae; 14.0 Ma for Guloninae + Helictidinae; 11.5 Ma for Guloninae + Naquinae vs. Helictidinae; 12.0 Ma for Ictonychinae; 11.6 Ma for Lutrinae vs. Mustelinae.^[4]

Mustelid species diversity is often attributed to an adaptive radiation coinciding with the mid-Miocene climate transition. Contrary to expectations, Law et al. (2018)^[4] found no evidence for rapid bursts of lineage diversification at the origin of the Mustelidae, and further analyses of lineage diversification rates using molecular and fossil-based methods did not find associations between rates of lineage diversification and mid-Miocene climate transition as previously hypothesized.

References

^ ^a ^b ^c ^d Paterson, R.; Samuels, J.X.; Rybczynski, N.; Ryan, M.J.; Maddin, H.C. (2019). "The earliest mustelid in North America". Zoological Journal of the Linnean Society. 188 (4): 1318–1339. doi:10.1093/zoolinnean/zlz091.
^ "Mustelidae". Merriam-Webster.com Dictionary. Merriam-Webster.
^ "mustelid". Dictionary.com Unabridged (Online). n.d.
^ ^a ^b ^c ^d ^e ^f ^g Law, C. J.; Slater, G. J.; Mehta, R. S. (1 January 2018). "Lineage Diversity and Size Disparity in Musteloidea: Testing Patterns of Adaptive Radiation Using Molecular and Fossil-Based Methods". Systematic Biology. 67 (1): 127–144. doi:10.1093/sysbio/syx047. PMID 28472434.
^ Law, C. J.; Slater, G. J.; Mehta, R. S. (2019). "Shared extremes by ectotherms and endotherms: Body elongation in mustelids is associated with small size and reduced limbs". Evolution. 73 (4): 735–749. doi:10.1111/evo.13702. PMID 30793764.
^ ^a ^b ^c Macdonald, David W.; Newman, Christopher; Harrington, L. A., eds. (2018). Biology and conservation of musteloids (First ed.). Oxford: Oxford University Press. ISBN 978-0-19-182051-9.
^ ^a ^b Mammalogy: adaptation, diversity, ecology (5th ed.). Baltimore, Maryland: Johns Hopkins university press. 2020. ISBN 978-1-4214-3652-4.
^ ^a ^b King, Carolyn (1984). Macdonald, D. (ed.). The Encyclopedia of Mammals. New York: Facts on File. pp. 108–109. ISBN 978-0-87196-871-5.
^ Kenyon, Karl W. (1969). The Sea Otter in the Eastern Pacific Ocean. Washington, D.C.: U.S. Bureau of Sport Fisheries and Wildlife.
^ Amstislavsky, Sergei, and Yulia Ternovskaya. "Reproduction in mustelids." Animal Reproduction Science 60 (2000): 571–581.
^ Pratt, Philip. "Dentition of the Wolverine". The Wolverine Foundation, Inc. Archived from the original on 27 May 2008. Retrieved 1 July 2007.
^ Taylor, Ken (1994). "Wolverine". Wildlife Notebook Series. Alaska Department of Fish & Game. Archived from the original on 6 December 2006. Retrieved 21 January 2007.
^ Dragoo and Honeycutt; Honeycutt, Rodney L (1997). "Systematics of Mustelid-like Carnivores". Journal of Mammalogy. 78 (2): 426–443. doi:10.2307/1382896. JSTOR 1382896.
^ Mills, David R.; Do Linh San, Emmanuel; Robinson, Hugh; Isoke, Sam; Slotow, Rob; Hunter, Luke (September 2019). "Competition and specialization in an African forest carnivore community". Ecology and Evolution. 9 (18): 10092–10108. Bibcode:2019EcoEv...910092M. doi:10.1002/ece3.5391. ISSN 2045-7758. PMC 6787825. PMID 31624540.
^ Perrin, William F., Wursig, Bernd, and Thewissen, J.G.M. Encyclopedia of Marine Mammals, 2nd ed. Academic Press; 2 edition (December 8, 2008). Page 529. [1]
^ Lodé, Thierry; Cornier, J. P.; Le Jacques, D. (2001). "Decline in endangered species as an indication of anthropic pressures: the case of European mink Mustela lutreola western population". Environmental Management. 28 (6): 727–735. Bibcode:2001EnMan..28..727L. doi:10.1007/s002670010257. PMID 11915962. S2CID 27062634.
^ Yonezawa, Takahiro; Nikaido, Masato; Kohno, Naoki; Fukumoto, Yukio; Okada, Norihiro; Hasegawa, Masami (1 July 2007). "Molecular phylogenetic study on the origin and evolution of Mustelidae". Gene. 396 (1): 1–12. doi:10.1016/j.gene.2006.12.040. ISSN 0378-1119. PMID 17449200.
^ Wund, M. (2005). "Mustelidae". Animal Diversity Web. University of Michigan. Retrieved 14 August 2020.
^ "Explore the Database". www.mammaldiversity.org. Retrieved 25 June 2021.
^ ^a ^b Nascimento, F. O. do (2014). "On the correct name for some subfamilies of Mustelidae (Mammalia, Carnivora)". Papéis Avulsos de Zoologia. 54 (21): 307–313. doi:10.1590/0031-1049.2014.54.21.
^ Patterson, Bruce D.; Ramírez-Chaves, Héctor E.; Vilela, Júlio F.; Soares, André E. R.; Grewe, Felix (2021). "On the nomenclature of the American clade of weasels (Carnivora: Mustelidae)". Journal of Animal Diversity. 3 (2): 1–8. doi:10.52547/JAD.2021.3.2.1. ISSN 2676-685X. S2CID 236299740.
^ Valenciano, A.; Jiangzuo, Q.; et al. (March 2019). "First Record of Hoplictis (Carnivora, Mustelidae) in East Asia from the Miocene of the Ulungur River Area, Xinjiang, Northwest China". Acta Geologica Sinica. 93 (2): 251–264. Bibcode:2019AcGlS..93..251V. doi:10.1111/1755-6724.13820. S2CID 133900941.
^ Morlo, M.; LeMaitre, A.; et al. (November 2019). "First record of the mustelid Trochictis (Carnivora, Mammalia) from the early Late Miocene (MN 9/10) of Germany and a re-appraisal of the genus Trochictis". Historical Biology. 33 (8): 1183–1195. doi:10.1080/08912963.2019.1683172. S2CID 209607263.
^ ^a ^b Koepfli, Klaus-Peter; Deere, K.A.; Slater, G.J.; Begg, C.; Begg, K.; Grassman, L.; Lucherini, M.; Veron, G.; Wayne, R.K. (February 2008). "Multigene phylogeny of the Mustelidae: Resolving relationships, tempo and biogeographic history of a mammalian adaptive radiation". BMC Biology. 6: 10. doi:10.1186/1741-7007-6-10. PMC 2276185. PMID 18275614.

External links

"The Mighty Weasel" (February 19, 2020) – Nature

[Paterson2020-1] Paterson, R.; Samuels, J.X.; Rybczynski, N.; Ryan, M.J.; Maddin, H.C. (2019). "The earliest mustelid in North America". Zoological Journal of the Linnean Society. 188 (4): 1318–1339. doi:10.1093/zoolinnean/zlz091.

[2] "Mustelidae". Merriam-Webster.com Dictionary. Merriam-Webster.

[3] "mustelid". Dictionary.com Unabridged (Online). n.d.

[Law-2018-4] ^ ^a ^b ^c ^d ^e ^f ^g Law, C. J.; Slater, G. J.; Mehta, R. S. (1 January 2018). "Lineage Diversity and Size Disparity in Musteloidea: Testing Patterns of Adaptive Radiation Using Molecular and Fossil-Based Methods". Systematic Biology. 67 (1): 127–144. doi:10.1093/sysbio/syx047. PMID 28472434.

[5] Law, C. J.; Slater, G. J.; Mehta, R. S. (2019). "Shared extremes by ectotherms and endotherms: Body elongation in mustelids is associated with small size and reduced limbs". Evolution. 73 (4): 735–749. doi:10.1111/evo.13702. PMID 30793764.

[:0-6] Macdonald, David W.; Newman, Christopher; Harrington, L. A., eds. (2018). Biology and conservation of musteloids (First ed.). Oxford: Oxford University Press. ISBN 978-0-19-182051-9.

[:1-7] Mammalogy: adaptation, diversity, ecology (5th ed.). Baltimore, Maryland: Johns Hopkins university press. 2020. ISBN 978-1-4214-3652-4.

[EoM-8] King, Carolyn (1984). Macdonald, D. (ed.). The Encyclopedia of Mammals. New York: Facts on File. pp. 108–109. ISBN 978-0-87196-871-5.

[9] Kenyon, Karl W. (1969). The Sea Otter in the Eastern Pacific Ocean. Washington, D.C.: U.S. Bureau of Sport Fisheries and Wildlife.

[10] Amstislavsky, Sergei, and Yulia Ternovskaya. "Reproduction in mustelids." Animal Reproduction Science 60 (2000): 571–581.

[11] Pratt, Philip. "Dentition of the Wolverine". The Wolverine Foundation, Inc. Archived from the original on 27 May 2008. Retrieved 1 July 2007.

[akfishgame-12] Taylor, Ken (1994). "Wolverine". Wildlife Notebook Series. Alaska Department of Fish & Game. Archived from the original on 6 December 2006. Retrieved 21 January 2007.

[13] Dragoo and Honeycutt; Honeycutt, Rodney L (1997). "Systematics of Mustelid-like Carnivores". Journal of Mammalogy. 78 (2): 426–443. doi:10.2307/1382896. JSTOR 1382896.

[14] Mills, David R.; Do Linh San, Emmanuel; Robinson, Hugh; Isoke, Sam; Slotow, Rob; Hunter, Luke (September 2019). "Competition and specialization in an African forest carnivore community". Ecology and Evolution. 9 (18): 10092–10108. Bibcode:2019EcoEv...910092M. doi:10.1002/ece3.5391. ISSN 2045-7758. PMC 6787825. PMID 31624540.

[15] Perrin, William F., Wursig, Bernd, and Thewissen, J.G.M. Encyclopedia of Marine Mammals, 2nd ed. Academic Press; 2 edition (December 8, 2008). Page 529. [1]

[16] Lodé, Thierry; Cornier, J. P.; Le Jacques, D. (2001). "Decline in endangered species as an indication of anthropic pressures: the case of European mink Mustela lutreola western population". Environmental Management. 28 (6): 727–735. Bibcode:2001EnMan..28..727L. doi:10.1007/s002670010257. PMID 11915962. S2CID 27062634.

[17] Yonezawa, Takahiro; Nikaido, Masato; Kohno, Naoki; Fukumoto, Yukio; Okada, Norihiro; Hasegawa, Masami (1 July 2007). "Molecular phylogenetic study on the origin and evolution of Mustelidae". Gene. 396 (1): 1–12. doi:10.1016/j.gene.2006.12.040. ISSN 0378-1119. PMID 17449200.

[Wund2005-18] Wund, M. (2005). "Mustelidae". Animal Diversity Web. University of Michigan. Retrieved 14 August 2020.

[19] "Explore the Database". www.mammaldiversity.org. Retrieved 25 June 2021.

[Nascimento2014-20] Nascimento, F. O. do (2014). "On the correct name for some subfamilies of Mustelidae (Mammalia, Carnivora)". Papéis Avulsos de Zoologia. 54 (21): 307–313. doi:10.1590/0031-1049.2014.54.21.

[21] Patterson, Bruce D.; Ramírez-Chaves, Héctor E.; Vilela, Júlio F.; Soares, André E. R.; Grewe, Felix (2021). "On the nomenclature of the American clade of weasels (Carnivora: Mustelidae)". Journal of Animal Diversity. 3 (2): 1–8. doi:10.52547/JAD.2021.3.2.1. ISSN 2676-685X. S2CID 236299740.

[Valenciano2019-22] Valenciano, A.; Jiangzuo, Q.; et al. (March 2019). "First Record of Hoplictis (Carnivora, Mustelidae) in East Asia from the Miocene of the Ulungur River Area, Xinjiang, Northwest China". Acta Geologica Sinica. 93 (2): 251–264. Bibcode:2019AcGlS..93..251V. doi:10.1111/1755-6724.13820. S2CID 133900941.

[23] Morlo, M.; LeMaitre, A.; et al. (November 2019). "First record of the mustelid Trochictis (Carnivora, Mammalia) from the early Late Miocene (MN 9/10) of Germany and a re-appraisal of the genus Trochictis". Historical Biology. 33 (8): 1183–1195. doi:10.1080/08912963.2019.1683172. S2CID 209607263.

[Koepfli2008-24] Koepfli, Klaus-Peter; Deere, K.A.; Slater, G.J.; Begg, C.; Begg, K.; Grassman, L.; Lucherini, M.; Veron, G.; Wayne, R.K. (February 2008). "Multigene phylogeny of the Mustelidae: Resolving relationships, tempo and biogeographic history of a mammalian adaptive radiation". BMC Biology. 6: 10. doi:10.1186/1741-7007-6-10. PMC 2276185. PMID 18275614.

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Mustelidae

Variety

Characteristics

Ecology

Animals of similar appearance

Human uses

Evolution and systematics

Phylogeny

See also

References

Further reading

External links

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