Figure 38. Character 77 in Morphology-based phylogenetic analysis and classification of the family Rhinocryptidae (Aves: Passeriformes)

Figure 38. Character 77 and its postulated states. Syrinx, ventrolateral surface, cranial half, sulcus: A, absent – 77.0; B, present – 77.1. Stippled areas are cartilaginous tissue, non-stippled areas are calcified structures. A1/B1 elements are indicated. Syringes of (A) Liosceles thoracicus (MZUSP, uncatalogued) and (B) Scelorchilus rubecula (MCP 2400) in lateral view. Scale bars = 2 mm.