Quills and bristle-quills of select Brazilian porcupine species (Coendou spp.) a Amazonian C. longicaudatus, long tricolored quill b C. baturitensis, long tricolored quill c C. bicolor, long bicolored quill d C. nycthemera, long quills with different distal band colors e C. melanurus, tricolored guard hair and bicolored quill f C. roosmalenorum, tricolored bristle-quill and bicolored quill g C. ichillus, tricolored bristle-quill and bicolored quill. Adapted from Menezes et al. (2020).

 
 
  Part of: Menezes FH, Semedo TBF, Saldanha J, Garbino GST, Fernandes-Ferreira H, Cordeiro-Estrela P, da Costa IR (2023) Phylogenetic relationships, distribution, and conservation of Roosmalens’ dwarf porcupine, Coendou roosmalenorum Voss & da Silva, 2001 (Rodentia, Erethizontidae). ZooKeys 1179: 139-155. https://doi.org/10.3897/zookeys.1179.108766