Trinomys Thomas 1921 Trinomys Thomas 1921, Ann. Mag. Nat. Hist., ser. 9, 8: 140. Type Species: Echimys albispinus I. Geoffroy 1838 Species and subspecies: 11 species with 8 subspecies: Species Trinomys albispinus (I. Geoffroy 1838) Subspecies Trinomys albispinus subsp. albispinus I. Geoffroy 1838 Subspecies Trinomys albispinus subsp. minor Reis and Pessôa 1995 Subspecies Trinomys albispinus subsp. serotinus Thomas 1921 Species Trinomys dimidiatus (Günther 1876) Species Trinomys eliasi Pessôa and Reis 1993 Species Trinomys gratiosus Moojen 1948 Subspecies Trinomys gratiosus subsp. gratiosus Moojen 1948 Subspecies Trinomys gratiosus subsp. bonafidei Moojen 1948 Species Trinomys iheringi (Thomas 1911) Species Trinomys mirapitanga Lara, Patton, and Hingst-Zaher 2002 Species Trinomys moojeni Pessôa, Oliveira, and Reis 1992 Species Trinomys myosuros (Lichtenstein 1820) Species Trinomys paratus Moojen 1948 Species Trinomys setosus (Desmarest 1817) Subspecies Trinomys setosus subsp. setosus Desmarest 1817 Subspecies Trinomys setosus subsp. denigratus Moojen 1948 Subspecies Trinomys setosus subsp. elegans Lund 1841 Species Trinomys yonenagae Rocha 1995 Discussion: Considered a subgenus of Proechimys by Moojen (1948) and Woods (1993) but Lara et al. (1996) demonstrated that Trinomys is not the sister taxon of Proechimys based on mtDNA sequences and should be regarded as a separate genus. Revised by Lara and Patton (2000).

Published as part of Wilson, Don E. & Reeder, DeeAnn, 2005, Order Rodentia - Family Echimyidae, pp. 1575-1592 in Mammal Species of the World: a Taxonomic and Geographic Reference (3 rd Edition), Volume 2, Baltimore :The Johns Hopkins University Press on page 1589, DOI: 10.5281/zenodo.7316535