FIG. 1 in Systematics of Neotropical Spiny Mice, Genus Neacomys Thomas, 1900 (Rodentia: Cricetidae), from Southeastern Amazonia, with Descriptions of Three New Species

FIG. 1. SEM images of molar toothwear age classes of Neacomys amoenus used in this study (based on Voss, 1991). From left to right: age class 1 (UFMT 4050), age class 2 (UFMT 1758), age class 3 (UFMT 1760), age class 4 (UFMT 1759), and age class 5 (UFMT 915). Arrows indicate the incompletely erupted M3 in age class 1, the distinct M2 anteroloph (not fused with the paracone) in age class 3, and the obliterated M2 anteroloph (fused with the paracone) in age class 4.