FIGURE 4. A–C in Geographic variation, phylogeny and systematic status of Gracilinanus microtarsus (Mammalia: Didelphimorphia: Didelphidae)

FIGURE 4. A–C Dorsal cranial view of Cryptonanus (A, MHNCI 4841), G. microtarsus ("small microtarsus") (B, MZUSP 29164) and G. microtarsus ("large microtarsus") (C, UFMG 2536) showing taxonomic differences on temporal margin and interorbital region in adult males. Scale = 5 mm; D–E Dorsal cranial views in "small microtarsus" (D, MZUSP 29164) and "large microtarsus" (E, UFMG 2535) showing the shape of interorbital region in adult males. Scale = 5 mm; F–G Ventral midcranial view in G. agilis (H, UFMG 2497) and G. microtarsus (I, UFMG 2536), showing taxonomic differences on size of posterolateral palatal foramen (plfp) in relation to palatine fenestrae (p) in adult males. Scale = 1 mm; H–I Ventral anterior cranial view in "small microtarsus" (F, UFMG 1166) and "ehrhardti" (G, MNHCI 6287) showing differences on size of incisive foramen in relation to canines. Scale = 1 mm.