Order Rodentia - Family Erethizontidae Author Wilson, Don E. Author Reeder, DeeAnn text 2005 The Johns Hopkins University Press Baltimore Mammal Species of the World: a Taxonomic and Geographic Reference (3 rd Edition), Volume 2 1545 1550 book chapter 0-8018-8221-4 10.5281/zenodo.7316535 Sphiggurus pruinosus Thomas 1905 Sphiggurus pruinosus Thomas 1905 , Ann. Mag. Nat. Hist., ser. 7, 16: 310 . Type Locality: Venezuela , Montañas de la Pedregosa near Mérida , 2500 m . Vernacular Names: Frosted Hairy Dwarf Porcupine . Distribution: C and N Colombia and W and N Venezuela . Discussion: Included in vestitus by Cabrera (1961), Concepcion and Molinari (1991) , Woods (1993) , and Soriano and Ochoa (1997) , but see Voss and da Silva (2001) for a discussion of the morphological distinctiveness of these two taxa. Assigned to vestitus group based on presence of bristle-quills ( Voss and da Silva, 2001 ). Karyotype has 2n=42 and FN=76 ( Concepción and Molinari, 1991).