. Bonner zoologische Monographien. Zoology. 122 SN SN3—LMte^«^. NA5 : Lateral view of neural arches and spines of anterior vertebrae, neural complex, and supraneural bones of Phoxinus. A: P. issykkulensis (P-10696, mm SL); B: P. erythrogaster (KU 5773. mm SL); C: P. neogaeus (KU 8521, mm SL): D: P. tennesseensis (UT mm SL). Scale bars = 1 mm. base of the rib is expanded, but the rib's ventral end is sharp. The rib bears a large and shallow notch at its median side in P. eos (TS 169[1]; ); the notch is absent in other species of Phoxinus and in the outg


. Bonner zoologische Monographien. Zoology. 122 SN SN3—LMte^«^. NA5 : Lateral view of neural arches and spines of anterior vertebrae, neural complex, and supraneural bones of Phoxinus. A: P. issykkulensis (P-10696, mm SL); B: P. erythrogaster (KU 5773. mm SL); C: P. neogaeus (KU 8521, mm SL): D: P. tennesseensis (UT mm SL). Scale bars = 1 mm. base of the rib is expanded, but the rib's ventral end is sharp. The rib bears a large and shallow notch at its median side in P. eos (TS 169[1]; ); the notch is absent in other species of Phoxinus and in the outgroups (TS 169[0]). The os Suspensorium is developed and plate-like. The left and right os suspensoria are not fused mesially, and a space exists between the dorsal margin of the os Suspensorium and the centrum of vertebra 4. The ventral end of the os Suspensorium is at the same level of the ventral end of rib 4. Variation occurs in several aspects of the os Suspensorium in Pho- xinus. The os Suspensorium is narrow in P. tennesseensis, neogaeus, erythrogaster, Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Bonn, Zoologisches Forschungsinstitut und Museum Alexander Koenig


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