List of erethizontids

Last updated

North American porcupine (Erethizon dorsatum) Porcupine-BioDome.jpg
North American porcupine (Erethizon dorsatum)

Erethizontidae is a family of mammals in the order Rodentia and part of the Caviomorpha parvorder. Members of this family are called erethizontids or New World porcupines. They are found in North America, Central America, and South America, primarily in forests, though some species can be found in shrublands, grasslands, and savannas. They range in size from the Paraguaian hairy dwarf porcupine, at 24 cm (9 in) plus a 9 cm (4 in) tail, to the North American porcupine, at 130 cm (51 in) plus a 25 cm (10 in) tail. Erethizontids are herbivores and primarily eat leaves, stems, fruit, blossoms, and roots. No erethizontids have population estimates, and none are categorized as an endangered species or critically endangered.

Contents

The eighteen extant species of Erethizontidae are divided into two subfamilies: Chaetomyinae consists of a single species, the bristle-spined rat, and Erethizontinae contains seventeen species of porcupines in two genera. A few extinct prehistoric erethizontid 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 (0 species)
 VU  Vulnerable (2 species)
 NT  Near threatened (0 species)
 LC  Least concern (9 species)
Other categories
 DD  Data deficient (6 species)
 NE  Not evaluated (1 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 erethizontid's range is provided. Ranges are based on the IUCN Red List for that species unless otherwise noted.

Classification

Erethizontidae is a family consisting of eighteen species in three genera, divided between two subfamilies. Chaetomyinae consists of a single species, and Erethizontinae contains seventeen species of porcupines in two genera.

Erethizontids

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. [2]

Subfamily Chaetomyinae

Genus Chaetomys Thomas, 1897 – one species
Common nameScientific name and subspeciesRangeSize and ecologyIUCN status and estimated population
Bristle-spined rat

Chaetomys subspinosus-2013.gif

C. subspinosus
(Olfers, 1818)
Eastern Brazil
Distribuicao geografica de Chaetomys subspinosus.png
Size: 36–45 cm (14–18 in) long, plus 26–27 cm (10–11 in) tail [3]

Habitat: Forest [4]

Diet: Nuts [5]
 VU 


Unknown Decrease2.svg [4]

Subfamily Erethizontinae

Genus Coendou Lacépède, 1799 – sixteen species
Common nameScientific name and subspeciesRangeSize and ecologyIUCN status and estimated population
Andean porcupine

Porcupine 6.jpg

C. quichua
Thomas, 1899
Panama and northeastern South AmericaSize: 33–44 cm (13–17 in) long, plus 26–41 cm (10–16 in) tail [6]

Habitat: Forest [7]

Diet: Leaves, stems, fruit, blossoms, and roots [8]
 DD 


Unknown Decrease2.svg [7]

Bahia porcupine

Coendou insidiosus 363764971.jpg

C. insidiosus
(Olfers, 1818)
Eastern BrazilSize: 29–35 cm (11–14 in) long, plus 18–22 cm (7–9 in) tail [3]

Habitat: Forest [9]

Diet: Leaves, stems, fruit, blossoms, and roots [8]
 LC 


Unknown Blue question mark (italic).svg [9]

Baturite porcupine

Coendou baturitensis Mulungu-CE.JPG

C. baturitensis
Feijó & Langguth, 2013
Northeastern BrazilSize: 46–55 cm (18–22 in) long, plus 32–47 cm (13–19 in) tail [3]

Habitat: Forest [10]

Diet: Leaves, stems, fruit, blossoms, and roots [8]
 DD 


Unknown Blue question mark (italic).svg [10]

Bicolored-spined porcupine

Coendu bicolor.jpg

C. bicolor
(Tschudi, 1844)

Four subspecies
  • C. b. bicolor
  • C. b. quichua
  • C. b. richardsoni
  • C. b. simonsi
Western and northwestern South America
Coendou bicolor Distribution Map.png
Size: 38–50 cm (15–20 in) long, plus 33–54 cm (13–21 in) tail [6]

Habitat: Forest [11]

Diet: Leaves, stems, fruit, blossoms, and roots [8]
 LC 


Unknown Blue question mark (italic).svg [11]

Black dwarf porcupine

Coendou nycthemera 250736201.jpg

C. nycthemera
(Olfers, 1818)
Northern Brazil
Coendou nycthemera Distribution Map.png
Size: 29–38 cm (11–15 in) long, plus 28–37 cm (11–15 in) tail [6]

Habitat: Forest [12]

Diet: Leaves, stems, fruit, blossoms, and roots [8]
 DD 


Unknown Blue question mark (italic).svg [12]

Black-tailed hairy dwarf porcupine

Black-tailed hairy dwarf porcupine.jpg

C. melanurus
(Wagner, 1842)
Northern South AmericaSize: 28–38 cm (11–15 in) long, plus 22–36 cm (9–14 in) tail [6]

Habitat: Forest [13]

Diet: Leaves, stems, fruit, blossoms, and roots [8]
 LC 


Unknown Blue question mark (italic).svg [13]

Brazilian porcupine

Prehensile-tailed porcupine sitting in tree - DPLA - fff999db3a9db19f15867971b2eea9db.jpg

C. prehensilis
(Linnaeus, 1758)
South America
Coendou prehensilis Distribution Map.png
Size: 29–48 cm (11–19 in) long, plus 31–43 cm (12–17 in) tail [3]

Habitat: Forest [14]

Diet: Leaves, stems, fruit, blossoms, and roots [8]
 LC 


Unknown Steady2.svg [14]

Brown hairy dwarf porcupine

Brown hairy dwarf porcupine - Coendou vestitus (02) - NHMI.jpg

C. vestitus
Thomas, 1899
Central Colombia Size: 29–37 cm (11–15 in) long, plus 17–19 cm (7–7 in) tail [6]

Habitat: Forest [15]

Diet: Leaves, stems, fruit, blossoms, and roots [8]
 DD 


Unknown Decrease2.svg [15]

Dwarf porcupine

Pernambuco Dwarf Porcupine, Pernambuco, BR imported from iNaturalist photo 484962573.jpg

C. speratus
Pontes, Gadelha, Melo, de Sá, Loss, Caldara Jr., Costa, & Leite, 2013
Eastern BrazilSize: 33–44 cm (13–17 in) long, plus 29–32 cm (11–13 in) tail [6]

Habitat: Forest [16]

Diet: Leaves, stems, fruit, blossoms, and roots [8]
 VU 


Unknown Blue question mark (italic).svg [16]

Frosted hairy dwarf porcupine


C. pruinosus
Thomas, 1905
Colombia and Venezuela Size: 32–38 cm (13–15 in) long, plus about 19 cm (7 in) tail [6]

Habitat: Forest [17]

Diet: Leaves, stems, fruit, blossoms, and roots [8]
 LC 


Unknown Blue question mark (italic).svg [17]

Mexican hairy dwarf porcupine

Coendou mexicanus 35816270.jpg

C. mexicanus
(Kerr, 1792)
Mexico and Central America
Coendou mexicanus range.svg
Size: 35–46 cm (14–18 in) long, plus 20–36 cm (8–14 in) tail [3]

Habitat: Forest [18]

Diet: Leaves, stems, fruit, blossoms, and roots [8]
 LC 


Unknown Blue question mark (italic).svg [18]

Paraguaian hairy dwarf porcupine

Coendou spinosus (cropped).jpeg

C. spinosus
(Cuvier, 1822)
Southeastern South AmericaSize: 24–55 cm (9–22 in) long, plus 20–38 cm (8–15 in) tail [6]

Habitat: Forest and savanna [19]

Diet: Leaves, stems, fruit, blossoms, and roots [8]
 LC 


Unknown Blue question mark (italic).svg [19]

Roosmalen's dwarf porcupine


C. roosmalenorum
Voss & da Silva, 2001
Western BrazilSize: About 29 cm (11 in) long, plus about 26 cm (10 in) tail [6]

Habitat: Forest [20]

Diet: Leaves, stems, fruit, blossoms, and roots [8]
 DD 


Unknown Blue question mark (italic).svg [20]

Rothschild's porcupine

Porcupine 6.jpg

C. rothschildi
Thomas, 1902
Panama
Coendou rothschildi Distribution Map.png
Size: 33–44 cm (13–17 in) long, plus 26–41 cm (10–16 in) tail [6]

Habitat: Forest [7]

Diet: Leaves, stems, fruit, blossoms, and roots [8]
 NE 


Unknown Decrease2.svg [7]

Streaked dwarf porcupine


C. ichillus
Voss & da Silva, 2001
Eastern Ecuador
Sphiggurus ichillus Distribution Map.png
Size: 26–29 cm (10–11 in) long, plus 21–25 cm (8–10 in) tail [6]

Habitat: Forest [21]

Diet: Leaves, stems, fruit, blossoms, and roots [8]
 DD 


Unknown Blue question mark (italic).svg [21]

Stump-tailed porcupine

Coendou rufescens 83352911.png

C. rufescens
(J. E. Gray, 1865)
Northwestern and central South AmericaSize: 31–37 cm (12–15 in) long, plus 10–15 cm (4–6 in) tail [3]

Habitat: Forest [22]

Diet: Leaves, stems, fruit, blossoms, and roots [8]
 LC 


Unknown Blue question mark (italic).svg [22]

Genus Erethizon F. Cuvier, 1823 – one species
Common nameScientific name and subspeciesRangeSize and ecologyIUCN status and estimated population
North American porcupine

Porcupine-BioDome.jpg

E. dorsatum
(Linnaeus, 1758)

Seven subspecies
  • E. d. bruneri
  • E. d. couesi
  • E. d. dorsata
  • E. d. epixanthus
  • E. d. myops
  • E. d. nigrescens
  • E. d. picinum
North America
Erethizon dorsatum map.svg
Size: 60–130 cm (24–51 in) long, plus 16–25 cm (6–10 in) tail [3]

Habitat: Forest, shrubland, and grassland [23]

Diet: Buds, twigs, roots, stems, leaves, flowers, seeds, berries, nuts, and other vegetation [24]
 LC 


Unknown Steady2.svg [23]

References

  1. "Fossilworks: Erethizontidae". Paleobiology Database . University of Wisconsin–Madison. Archived from the original on January 23, 2025. Retrieved June 7, 2025.
  2. Wilson, Reeder, pp. 1545-1549
  3. 1 2 3 4 5 6 7 Chernasky; Motis; Burgin, p. 353
  4. 1 2 Catzeflis, F.; Patton, J.; Percequillo, A.; Bonvicino, C. R.; Weksler, M. (2017). "Chaetomys subspinosus". IUCN Red List of Threatened Species . 2017: e.T4366A22213335. doi: 10.2305/IUCN.UK.2017-2.RLTS.T4366A22213335.en .
  5. Nowak, p. 1701
  6. 1 2 3 4 5 6 7 8 9 10 11 Chernasky; Motis; Burgin, p. 354
  7. 1 2 3 4 Delgado, C. (2016). "Coendou quichua". IUCN Red List of Threatened Species . 2016: e.T136702A22214415. doi: 10.2305/IUCN.UK.2016-2.RLTS.T136702A22214415.en .
  8. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Nowak, pp. 1654–1656
  9. 1 2 Roach, N.; Naylor, L. (2016). "Coendou insidiosus". IUCN Red List of Threatened Species . 2016: e.T20631A22213745. doi: 10.2305/IUCN.UK.2016-2.RLTS.T20631A22213745.en .
  10. 1 2 Roach, N. (2016). "Coendou baturitensis". IUCN Red List of Threatened Species . 2016: e.T87411473A87411477. doi: 10.2305/IUCN.UK.2016-2.RLTS.T87411473A87411477.en .
  11. 1 2 Delgado, C. (2016). "Coendou bicolor". IUCN Red List of Threatened Species . 2016: e.T5083A22214310. doi: 10.2305/IUCN.UK.2016-2.RLTS.T5083A22214310.en .
  12. 1 2 Delgado, C. (2016). "Coendou nycthemera". IUCN Red List of Threatened Species . 2016: e.T5084A22214228. doi: 10.2305/IUCN.UK.2016-2.RLTS.T5084A22214228.en .
  13. 1 2 Catzeflis, F. . (2016). "Coendou melanurus". IUCN Red List of Threatened Species . 2016: e.T136738A22213900. doi: 10.2305/IUCN.UK.2016-2.RLTS.T136738A22213900.en .
  14. 1 2 Marinho-Filho, J.; Emmons, L. (2016). "Coendou prehensilis". IUCN Red List of Threatened Species . 2016: e.T101228458A22214580. doi: 10.2305/IUCN.UK.2016-2.RLTS.T101228458A22214580.en .
  15. 1 2 Weksler, M.; Anderson, R. P.; Gómez-Laverde, M. (2016). "Coendou vestitus". IUCN Red List of Threatened Species . 2016: e.T20633A22213528. doi: 10.2305/IUCN.UK.2016-2.RLTS.T20633A22213528.en .
  16. 1 2 Hurtado Materon, M. A.; Mendes Pontes, A. R.; Torres-Martinez, M. M.; Lawing, M. (2024). "Coendou speratus". IUCN Red List of Threatened Species . 2024: e.T46205559A259146246. doi: 10.2305/IUCN.UK.2024-2.RLTS.T46205559A259146246.en .
  17. 1 2 Delgado, C. . (2016). "Coendou pruinosus". IUCN Red List of Threatened Species . 2016: e.T136485A22213797. doi: 10.2305/IUCN.UK.2016-2.RLTS.T136485A22213797.en .
  18. 1 2 Vázquez, E.; Reid, F.; Cuarón, A. D. (2016). "Coendou mexicanus". IUCN Red List of Threatened Species . 2016: e.T20629A22214103. doi: 10.2305/IUCN.UK.2016-2.RLTS.T20629A22214103.en .
  19. 1 2 Roach, N.; Naylor, L. (2016). "Coendou spinosus". IUCN Red List of Threatened Species . 2016: e.T20630A22213974. doi: 10.2305/IUCN.UK.2016-2.RLTS.T20630A22213974.en .
  20. 1 2 Roach, N.; Naylor, L. (2016). "Coendou roosmalenorum". IUCN Red List of Threatened Species . 2016: e.T136518A22214051. doi: 10.2305/IUCN.UK.2016-2.RLTS.T136518A22214051.en .
  21. 1 2 Weksler, M.; Anderson, R. P.; Gómez-Laverde, M. (2016). "Coendou ichillus". IUCN Red List of Threatened Species . 2016: e.T136597A22213629. doi: 10.2305/IUCN.UK.2016-2.RLTS.T136597A22213629.en .
  22. 1 2 Tirira, D. (2016). "Coendou rufescens". IUCN Red List of Threatened Species . 2016: e.T7010A22213241. doi: 10.2305/IUCN.UK.2016-2.RLTS.T7010A22213241.en .
  23. 1 2 Emmons, L. (2016). "Erethizon dorsatum". IUCN Red List of Threatened Species . 2016: e.T8004A22213161. doi: 10.2305/IUCN.UK.2016-3.RLTS.T8004A22213161.en .
  24. Nowak, p. 1658

Sources