Figure 2From: The taxonomic status of the endangered thin-spined porcupine, Chaetomys subspinosus(Olfers, 1818), based on molecular and karyologic dataSilver-nitrate stained NOR (Ag-NOR) metaphases of Chaetomys subspinosus. Complete (a) and partial (b) Ag-NOR metaphases of Chaetomys subspinosus showing signals on the short arm of pair 14 (arrows). (c) Conventionally stained pair 14 showing terminal secondary constriction on the short arm (arrows).Back to article page