. Bonner zoologische Monographien. Zoology. B AW. Fig. 13: Basioccipital in ven- tral view (A-C). and para- sphenoid in lateral view (D-E) in hemitremians and in the outgroup. A: Platygobio gracilis (KU 11950.' mm SL); B: Couesius plutn- beus (KU 18881, mm SL): C: Phoxinus phoxinus (CNUC mm SL): D. Hemitremia flamme a (KU 18931, mm SL): E. Pho- xinus phoxinus (CNUC un- mm SL). Scale bars = 1 mm. the outgroups, this angle is relatively smaller than that in other ingroups. - TS 22: Late- ral view of the parasphenoid. angle a small [0]. or large [1]. 18. Qu
. Bonner zoologische Monographien. Zoology. B AW. Fig. 13: Basioccipital in ven- tral view (A-C). and para- sphenoid in lateral view (D-E) in hemitremians and in the outgroup. A: Platygobio gracilis (KU 11950.' mm SL); B: Couesius plutn- beus (KU 18881, mm SL): C: Phoxinus phoxinus (CNUC mm SL): D. Hemitremia flamme a (KU 18931, mm SL): E. Pho- xinus phoxinus (CNUC un- mm SL). Scale bars = 1 mm. the outgroups, this angle is relatively smaller than that in other ingroups. - TS 22: Late- ral view of the parasphenoid. angle a small [0]. or large [1]. 18. Quadrate bone (). Generally, in most ingroup and in the outgroups, the ven- tral margin of quadrate bears a very shallow concavity (, C). In Margariscus, the concavity is deep and narrow (). - TS 23: Ventral margin of the quadrate bearing a shallow and wide concavity [0], or a deep and narrow one [1]. 19. Symplectic bone (). In most of the ingroup and in the outgroups, the dor- sal margin of the symplectic bone bears a poorly developed process (or no process) arti- culating with the metapterygoid (, C). The process is better developed in Margariscus () than that in other members of the ingroup and in the outgroups. - TS 24: Process at dorsal margin of the symplectic poorly [0], or well [1] developed. 20. Metapterygoid bone (). In Couesius, a deep notch is present at the poster- ior margin of the metapterygoid (). The notch is not present in other genera of the ingroup and outgroups ( B). - TS 25: A deep notch at the posterior margin of the metapterygoid absent [0], or present [1]. 21. Opercle bone (). In most ingroup and outgroups. the anterodorsal process at the dorsal margin of the opercle is short and blunt (, B). In Lagowskiella. the. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these
Size: 3446px × 725px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectionbiodiversity, booksubjectzoology
