Figure 2 in Prepollex diversity and evolution in Cophomantini (Anura: Hylidae: Hylinae)

Figure 2. Cleared and double stained (A, C–K) and X-ray image (B) of the right hand of adult males with spine-shaped distal prepollex in dorsal view. Numbers are 'character.character-state' (see Hypotheses of homology for details). A, Bokermannohyla ibitiguara CFBH 17323; B, Bokermannohyla langei MZUSP 74275; C, Boana microderma MZUSP 159194; D, Boana tepuiana MZUSP 159179; E, Boana pombali CFBH 14917; F, Boana heilprini UFMG 8641; G, Boana raniceps UFMG 1547; H, Boana crepitans UFMG 6937; I, Boana clepsydra MNRJ 112612; J, Boana pulchella MACN 54563; K, Boana ericae CFBH 3604. Dorsal crest on the medial margin of the distal prepollex absent (Ch. 3.0) in (C); present (Ch. 3.1) in the others. Post-articular process absent or as a rudimentary tip (Ch. 6.0) in (A, C, D, G); present, intermediate sized (Ch. 6.1) in (E, F, H, I); present and long (Ch. 6.2) in (B, J, K). Spine straight (Ch. 7.1) in (C); curved (Ch. 7.0) in the others. For the curved spines, the curve of the spine passes ventral to metacarpal II before turning mediad (Ch. 8.1) in (J, K); the curve of the spine is directed mediad, without passing ventral to metacarpal II (Ch. 8.0) in the others. Distal projection forming an additional spine present (Ch. 9.1) in (B, K); absent in the others. Metacarpal II articulates with the prepollex through a medial expansion of the proximal epiphysis (Ch. 10.1) in (D, E, G–K); without a medial expansion (Ch. 10.0) in (A–C, F). For abbreviations see Figure 1 legend. For figure clarity, different character states are indicated only in part of the images. Scale bars 1 mm.