Habitat and Ecology
Molecular Biology and Genetics
Statistics of barcoding coverage: Trinomys albispinus
Public Records: 0
Specimens with Barcodes: 1
Species With Barcodes: 1
IUCN Red List Assessment
Red List Category
Red List Criteria
- 1996Lower Risk/near threatened (LR/nt)
White-spined Atlantic spiny rat
The white-spined species is one of the smaller spiny rats, with a head-body length of 15 to 21 cm (5.9 to 8.3 in), and a tail 12 to 18 centimetres (4.7 to 7.1 in) long. Adult weight can be anything from 120 to 230 g (4.2 to 8.1 oz). The fur on the upper body and flanks is tawny to buff, interspersed with much paler (although usually not pure white) spines. The underparts, including the lower surface of the tail, are white.
Females are pregnant between January and June, and give birth to litters of up to four young.
Distribution and habitat
The white-spined Atlantic spiny rat is found in a relatively small region of eastern Brazil, in the states of Sergipe and Bahia. Compared with other spiny rats, they are adapted for a relatively dry climate, and the region is dominated semi-arid caatinga forest with a mix of deciduous trees and cactuses, among other plants.
Three subspecies are recognised from different parts of this region:
- T. a. albispinus - southern coastal parts of the range
- T. a. minor - inland parts of the range
- T. a. sertonius - northern coastal parts of the range
- Catzeflis, F., Patton, J., Percequillo, A., Bonvicino, C. & Weksler, M. (2008). Trinomys albispinus. In: IUCN 2008. IUCN Red List of Threatened Species. Retrieved 6 January 2009.
- Woods, C. A. and C. W. Kilpatrick. 2005. Hystricognathi. pp 1538–1600 in Mammal Species of the World a Taxonomic and Geographic Reference 3rd ed. D. E. Wilson and D. M. Reeder eds. Smithsonian Institution Press, Washington D.C.
- Pessôa, L.M. & dos Reis, S.F. (2002). "Proechimys albispinus". Mammalian Species: Number 693: pp. 1–3. doi:10.1644/1545-1410(2002)693<0001:PA>2.0.CO;2.
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