List of bathyergids

Cape mole-rat (Georychus capensis)

Bathyergidae is a family of fossorial mammals in the order Rodentia and part of the Phiomorpha parvorder. Members of this family are called bathyergids, blesmols, or mole-rats. They are found in southern Africa, primarily in shrublands, grasslands, and savannas, though some species can be found in deserts or forests. They range in size from Caroline's mole-rat, at 8 cm (3 in) plus a 1 cm (0.4 in) tail, to the Cape dune mole-rat, at 35 cm (14 in) plus a 4 cm (2 in) tail. Bathyergids are omnivores, and primarily eat roots, bulbs, and tubers, as well as earthworms and insects. Almost no bathyergids have population estimates, but the Hanang mole-rat is categorized as endangered with a population as low as 100.

The twenty-one extant species of Bathyergidae are divided into five genera, which range in size from one to thirteen species. Several extinct prehistoric bathyergid species have been discovered, though due to ongoing research and discoveries, the exact number and categorization is not fixed. ^[1]

Conventions

IUCN Red List categories

Conservation status
EX	Extinct (0 species)
EW	Extinct in the wild (0 species)
CR	Critically endangered (0 species)
EN	Endangered (1 species)
VU	Vulnerable (1 species)
NT	Near threatened (0 species)
LC	Least concern (14 species)
Other categories
DD	Data deficient (5 species)
NE	Not evaluated (0 species)

The author citation for the species or genus is given after the scientific name; parentheses around the author citation indicate that this was not the original taxonomic placement. Conservation status codes listed follow the International Union for Conservation of Nature (IUCN) Red List of Threatened Species. Range maps are provided wherever possible; if a range map is not available, a description of the bathyergid's range is provided. Ranges are based on the IUCN Red List for that species unless otherwise noted.

Classification

Bathyergidae is a family consisting of twenty-one extant species in five genera. This does not include hybrid species or extinct prehistoric species.

Family Bathyergidae

• Genus Bathyergus (dune mole-rats): two species
• Genus Cryptomys (common mole-rats): four species
• Genus Fukomys (tropical mole-rats): thirteen species
• Genus Georychus (Cape mole-rat): one species
• Genus Heliophobius (silvery mole-rat): one species

Bathyergidae [2] Heliophobius Bathyergus Georychus Cryptomys Fukomys

Bathyergids

The following classification is based on the taxonomy described by the reference work Mammal Species of the World (2005), with augmentation by generally accepted proposals made since using molecular phylogenetic analysis, as supported by both the IUCN and the American Society of Mammalogists. ^[3]

Genus Bathyergus – Illiger, 1811 – two species

Common name	Scientific name and subspecies	Range	Size and ecology	IUCN status and estimated population
Cape dune mole-rat	B. suillus (Schreber, 1782)	South Africa	Size: 27–35 cm (11–14 in) long, plus 3–4 cm (1–2 in) tail [4] Habitat: Desert [5] Diet: Bulbs and fleshy roots [6]	LC  Unknown [5]
Namaqua dune mole-rat	B. janetta Thomas & Schwann, 1904	South Africa and Namibia	Size: 17–23 cm (7–9 in) long, plus 4–6 cm (2 in) tail [4] Habitat: Shrubland [7] Diet: Bulbs and fleshy roots [6]	LC  Unknown [7]

Genus Cryptomys – Gray, 1864 – four species

Common name	Scientific name and subspecies	Range	Size and ecology	IUCN status and estimated population
Common mole-rat	C. hottentotus (Lesson, 1825) Three subspecies C. h. hottentotus C. h. nimrodi (Matabeleland mole-rat) C. h. whytei	South Africa	Size: Unknown [4] Habitat: Shrubland and grassland [8] Diet: Roots, bulbs, tubers, and aloe leaves, as well as earthworms and insects [9]	LC  Unknown [8]
Highveld mole-rat	C. pretoriae (Roberts, 1913)	South Africa	Size: About 14 cm (6 in) long, plus about 2 cm (1 in) tail [4] Habitat: Shrubland and grassland [10] Diet: Roots, bulbs, tubers, and aloe leaves, as well as earthworms and insects [9]	LC  Unknown [10]
Mahali mole-rat	C. mahali (Roberts, 1913)	South Africa	Size: 13–15 cm (5–6 in) long, plus 1–3 cm (0.4–1.2 in) tail [4] Habitat: Shrubland and grassland [11] Diet: Roots, bulbs, tubers, and aloe leaves, as well as earthworms and insects [9]	DD  Unknown [11]
Natal mole-rat	C. natalensis (Roberts, 1913)	South Africa, Lesotho, and Eswatini	Size: 15–18 cm (6–7 in) long, plus 2–3 cm (1 in) tail [4] Habitat: Shrubland and grassland [12] Diet: Roots, bulbs, tubers, and aloe leaves, as well as earthworms and insects [9]	LC  Unknown [12]

Genus Fukomys – Kock, Ingram, Frabotta, Honeycutt, & Burda, 2006 – thirteen species

Common name	Scientific name and subspecies	Range	Size and ecology	IUCN status and estimated population
Ansell's mole-rat	F. anselli (Burda, Zima, Scharff, Macholán, & Kawalika, 1999)	Zambia	Size: 10–14 cm (4–6 in) long, plus 1–3 cm (0.4–1.2 in) tail [13] Habitat: Savanna [14] Diet: Roots, bulbs, tubers, and aloe leaves, as well as earthworms and insects [9]	LC  Unknown [14]
Bocage's mole-rat	F. bocagei (De Winton, 1897)	Southwestern Africa	Size: 14–17 cm (6–7 in) long, plus 0.5–2 cm (0.2–0.8 in) tail [13] Habitat: Savanna, shrubland, and grassland [15] Diet: Roots, bulbs, tubers, and aloe leaves, as well as earthworms and insects [9]	LC  Unknown [15]
Caroline's mole-rat	F. vandewoestijneae Van Daele, Blondé, Stjernstedt, & Adriaens, 2013	South-central Africa	Size: 8–15 cm (3–6 in) long, plus 1–3 cm (0.4–1.2 in) tail [13] Habitat: Forest and grassland [16] Diet: Roots, bulbs, tubers, and aloe leaves, as well as earthworms and insects [9]	DD  Unknown [16]
Damaraland mole-rat	F. damarensis (Ogilby, 1838)	Southern Africa	Size: 15–18 cm (6–7 in) long, plus 2–3 cm (1 in) tail [13] Habitat: Shrubland and grassland [17] Diet: Roots, bulbs, tubers, and aloe leaves, as well as earthworms and insects [9]	LC  Unknown [17]
Ghana mole-rat	F. zechi Matschie, 1900	Ghana	Size: 12–23 cm (5–9 in) long, plus about 2 cm (1 in) tail [13] Habitat: Savanna, shrubland, and grassland [18] Diet: Roots, bulbs, tubers, and aloe leaves, as well as earthworms and insects [9]	LC  Unknown [18]
Hanang mole-rat	F. hanangensis Faulkes, Mgode, Archer, & Bennett, 2017	Tanzania	Size: About 11 cm (4 in) long, plus about 1 cm (0 in) tail [13] Habitat: Grassland [19] Diet: Roots, bulbs, tubers, and aloe leaves, as well as earthworms and insects [9]	EN  100–200 [19]
Kafue mole-rat	F. kafuensis (Burda, Zima, Scharff, Macholán, & Kawalika, 1999)	Zambia	Size: 9–13 cm (4–5 in) long, plus 1–2 cm (0–1 in) tail [13] Habitat: Savanna [20] Diet: Roots, bulbs, tubers, and aloe leaves, as well as earthworms and insects [9]	VU  Unknown [20]
Livingstone's mole-rat	F. livingstoni Faulkes, Mgode, Archer, & Bennett, 2017	Tanzania	Size: About 12 cm (5 in) long, plus about 1 cm (0.4 in) tail [13] Habitat: Unknown [21] Diet: Roots, bulbs, tubers, and aloe leaves, as well as earthworms and insects [9]	DD  Unknown [21]
Mashona mole-rat	F. darlingi (Thomas, 1895)	Zimbabwe and Mozambique	Size: 12–17 cm (5–7 in) long, plus 0.5–2 cm (0.2–0.8 in) tail [13] Habitat: Shrubland and grassland [22] Diet: Roots, bulbs, tubers, and aloe leaves, as well as earthworms and insects [9]	LC  Unknown [22]
Mechow's mole-rat	F. mechowi (Peters, 1881) Two subspecies F. m. mechowi F. m. mellandi	South-central Africa	Size: 13–26 cm (5–10 in) long, plus 2–4 cm (1–2 in) tail [13] Habitat: Savanna, shrubland, and grassland [23] Diet: Roots, bulbs, tubers, and aloe leaves, as well as earthworms and insects [9]	LC  Unknown [23]
Nigerian mole-rat	F. foxi (Thomas, 1911)	Nigeria and Cameroon	Size: 16–20 cm (6–8 in) long, plus 1–3 cm (0.4–1.2 in) tail [13] Habitat: Grassland [24] Diet: Roots, bulbs, tubers, and aloe leaves, as well as earthworms and insects [9]	DD  Unknown [24]
Ochre mole-rat	F. ochraceocinereus (Heuglin, 1864) Two subspecies F. o. ochraceocinereus F. o. oweni	Central Africa	Size: 15–20 cm (6–8 in) long, plus 1–3 cm (0.4–1.2 in) tail [13] Habitat: Savanna, shrubland, and grassland [25] Diet: Roots, bulbs, tubers, and aloe leaves, as well as earthworms and insects [9]	LC  Unknown [25]
Somali striped mole-rat	F. ilariae Gippoliti & Amori, 2011	Somalia	Size: About 12 cm (5 in) long, plus tail [13] Habitat: Shrubland [26] Diet: Roots, bulbs, tubers, and aloe leaves, as well as earthworms and insects [9]	DD  Unknown [26]

Genus Georychus – Illiger, 1811 – one species

Common name	Scientific name and subspecies	Range	Size and ecology	IUCN status and estimated population
Cape mole-rat	G. capensis (Pallas, 1778)	South Africa and Lesotho	Size: 8–23 cm (3–9 in) long, plus 1–3 cm (0.4–1.2 in) tail [4] Habitat: Shrubland and forest [27] Diet: Tubers, roots, and bulbs [28]	LC  Unknown [27]

Genus Heliophobius – Peters, 1846 – one species

Common name	Scientific name and subspecies	Range	Size and ecology	IUCN status and estimated population
Silvery mole-rat	H. argenteocinereus Peters, 1846 Nine subspecies H. a. albifrons H. a. angonicus H. a. argenteocinereus H. a. emini H. a. kapiti H. a. marungensis H. a. mottoulei H. a. robustus H. a. spalax	Southeastern Africa	Size: 13–20 cm (5–8 in) long, plus 0.5–2 cm (0.2–0.8 in) tail [4] Habitat: Savanna, shrubland, grassland, and caves [29] Diet: Tubers and bulbs [30]	LC  Unknown [29]

References

1. "Fossilworks: Bathyergidae". Paleobiology Database . University of Wisconsin–Madison. Archived from the original on February 9, 2025. Retrieved September 7, 2025.
2. Lewis, K. N.; Soifer, I.; Melamud, E.; Roy, M.; McIsaac, R. S.; Hibbs, M.; Buffenstein, R. (2016). "Unraveling the message: insights into comparative genomics of the naked mole-rat". Mammalian Genome . 27: 259–278. doi:10.1007/s00335-016-9648-5. PMC   4935753 .
3. Wilson; Reeder, pp. 1538-1543
4. Chernasky; Motis; Burgin, p. 351
5. Maree, S.; Jarvis, J.; Bennett, N. C.; Visser, J. (2017). "Bathyergus suillus". IUCN Red List of Threatened Species . 2017: e.T2620A110017759. doi: 10.2305/IUCN.UK.2017-2.RLTS.T2620A110017759.en .
6. Nowak, p. 1641
7. Maree, S. (2016). "Bathyergus janetta". IUCN Red List of Threatened Species . 2016: e.T2619A22185370. doi: 10.2305/IUCN.UK.2016-2.RLTS.T2619A22185370.en .
8. Bennett, N. C.; Child, M. F. (2019). "Cryptomys hottentotus". IUCN Red List of Threatened Species . 2019: e.T111932681A50535223. doi: 10.2305/IUCN.UK.2019-1.RLTS.T111932681A50535223.en .
9. Nowak, p. 1638
10. Bennett, N. C. (2019). "Cryptomys pretoriae". IUCN Red List of Threatened Species . 2019: e.T111935780A111935800. doi: 10.2305/IUCN.UK.2019-1.RLTS.T111935780A111935800.en .
11. Bennett, N. C. (2019). "Cryptomys mahali". IUCN Red List of Threatened Species . 2019: e.T111933779A111933826. doi: 10.2305/IUCN.UK.2019-1.RLTS.T111933779A111933826.en .
12. Kennerley, R.; Child, M. F. (2019). "Cryptomys natalensis". IUCN Red List of Threatened Species . 2019: e.T111935513A111935542. doi: 10.2305/IUCN.UK.2019-1.RLTS.T111935513A111935542.en .
13. Chernasky; Motis; Burgin, pp. 352–353
14. Dando, T.; Van Daele, P. (2020). "Fukomys anselli". IUCN Red List of Threatened Species . 2020: e.T44858A22184572. doi: 10.2305/IUCN.UK.2020-2.RLTS.T44858A22184572.en .
15. Faulkes, C.; Maree, S.; Griffin, M. (2016). "Fukomys bocagei". IUCN Red List of Threatened Species . 2016: e.T5752A22184407. doi: 10.2305/IUCN.UK.2016-3.RLTS.T5752A22184407.en .
16. Van Daele, P.; Dando, T.; Kennerley, R. (2019). "Fukomys vandewoestijneae". IUCN Red List of Threatened Species . 2019: e.T48294834A48294838. doi: 10.2305/IUCN.UK.2019-1.RLTS.T48294834A48294838.en .
17. Child, M. F.; Maree, S. (2016). "Fukomys damarensis". IUCN Red List of Threatened Species . 2016: e.T5753A22185003. doi: 10.2305/IUCN.UK.2016-3.RLTS.T5753A22185003.en .
18. Maree, S.; Faulkes, C.; Schlitter, D. (2016). "Fukomys zechi". IUCN Red List of Threatened Species . 2016: e.T5751A22184502. doi: 10.2305/IUCN.UK.2016-2.RLTS.T5751A22184502.en .
19. Faulkes, C. G.; Mgode, G. F.; Gereau, R. E.; Hart, D. W.; Bennett, N. C. (2020). "Fukomys hanangensis". IUCN Red List of Threatened Species . 2020: e.T167462770A167462772. doi: 10.2305/IUCN.UK.2020-3.RLTS.T167462770A167462772.en .
20. Dando, T. (2021). "Fukomys kafuensis". IUCN Red List of Threatened Species . 2021: e.T44861A22184898. doi: 10.2305/IUCN.UK.2021-3.RLTS.T44861A22184898.en .
21. Relton, C. (2021). "Fukomys livingstoni". IUCN Red List of Threatened Species . 2021: e.T167463928A167464037. doi: 10.2305/IUCN.UK.2021-3.RLTS.T167463928A167464037.en .
22. Maree, S.; Faulkes, C.; Cotterill, F. (2016). "Fukomys darlingi". IUCN Red List of Threatened Species . 2016: e.T44860A22184755. doi: 10.2305/IUCN.UK.2016-3.RLTS.T44860A22184755.en .
23. Maree, S.; Faulkes, C. (2016). "Fukomys mechowi". IUCN Red List of Threatened Species . 2016: e.T5756A22185092. doi: 10.2305/IUCN.UK.2016-3.RLTS.T5756A22185092.en .
24. Gerrie, R.; Kennerley, R. (2019). "Fukomys foxi". IUCN Red List of Threatened Species . 2019: e.T5754A22184832. doi: 10.2305/IUCN.UK.2019-1.RLTS.T5754A22184832.en .
25. Maree, S.; Faulkes, C. (2016). "Fukomys ochraceocinereus". IUCN Red List of Threatened Species . 2016: e.T5757A22184661. doi: 10.2305/IUCN.UK.2016-3.RLTS.T5757A22184661.en .
26. Amori, G. (2019). "Fukomys ilariae". IUCN Red List of Threatened Species . 2019: e.T48295791A48295794. doi: 10.2305/IUCN.UK.2019-1.RLTS.T48295791A48295794.en .
27. Maree, S.; Visser, J.; Bennett, N. C.; Jarvis, J. (2017). "Georychus capensis". IUCN Red List of Threatened Species . 2017: e.T9077A110019425. doi: 10.2305/IUCN.UK.2017-2.RLTS.T9077A110019425.en .
28. Nowak, p. 1637
29. Maree, S.; Faulkes, C. (2017) [errata version of 2016 assessment]. "Heliophobius argenteocinereus". IUCN Red List of Threatened Species . 2016: e.T9828A115094392. doi: 10.2305/IUCN.UK.2016-3.RLTS.T9828A22184301.en .
30. Nowak, p. 1639

Sources

• Chernasky, Amy; Motis, Anna; Burgin, Connor, eds. (2023). All the Mammals of the World . Lynx Nature Books. ISBN   978-84-16728-66-4.
• Nowak, Ronald M. (1999). Walker's Mammals of the World. Vol. 2 (6th ed.). Johns Hopkins University Press. ISBN   978-0-8018-5789-8.
• Woods, Charles A.; Kilpatrick, C. William (2005). Wilson, Don E.; Reeder, DeeAnn M. (eds.). Mammal Species of the World . Vol. 2 (3rd ed.). Johns Hopkins University Press. ISBN   978-0-8018-8221-0.