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Fig. 5 | BMC Ecology and Evolution

Fig. 5

From: Complex sexually dimorphic traits shape the parallel evolution of a novel reproductive strategy in Sulawesi ricefishes (Adrianichthyidae)

Fig. 5

Overview of rib and pelvic fin measurements. a O. eversi skeleton with ribs numbered relative to rib R0 (orange), which lies above the insertion site of pelvic-fin rays into the pelvic girdle (purple arrow). Ribs anterior (yellow) of rib R0 received a negative, ribs posterior (blue) a positive value. The first rib (green arrow) was often incomplete and could not be measured reliably. It was thus not included. b Schematic cross-section of a vertebra including ribs illustrating rib length (blue), rib height (yellow) and rib gap (red). c = notochord, na = neural arch, nc = neural canal, ns = neural spine, r = rib, tp = transversal process. c Schematic view on the ventrolateral side of the pelvic girdle. The fin rays (light gray) insert into the articular plate (ap), to which a stick-like process (sp) and the lateral process (lp) are connected. Red and blue arrows indicate the sites were cross-section areas have been measured on the lateral fin ray (lfr) and medial fin ray (mfr)

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