Fig. 24. Character 4 in PHYLOGENETIC SYSTEMATICS OF DART-POISON FROGS AND THEIR RELATIVES (AMPHIBIA: ATHESPHATANURA: DENDROBATIDAE)

Fig. 24. Character 4, length of finger IV. A: State 0, surpassing distal subarticular tubrcle of finger III (histrionicus, AMNH 88259). B: State 1, reaching distal half of distal subarticular tubercle of finger III (tricolor, USNM 286082). Note also the strong preaxial swelling of finger III. C: State 2, not reaching distal subarticular tubercle of finger III (insperatus, KU 149684). Note also the absence of the distal subarticular tubercle of finger IV.