. Bonner zoologische Monographien. Zoology. 39 The metapterygoid is elongate, with a central rod of ossifying cartilage, and with a well ossified, elongate processus ectopterygoideus. Medially, the bone is thinly ossified. There is a slight notch separating the sharp, short processus basahs from the postero- dorsal flange of the bone. Metapterygoid, quadrate, and hyomandibula are broadly joined by cartilage of the hyo-symplectic-pterygoquadrate plate. The simple, triangular quadrate is mainly ossified at its condylar articular facet with the lower jaw, and posteroventrally, at the articular fa
. Bonner zoologische Monographien. Zoology. 39 The metapterygoid is elongate, with a central rod of ossifying cartilage, and with a well ossified, elongate processus ectopterygoideus. Medially, the bone is thinly ossified. There is a slight notch separating the sharp, short processus basahs from the postero- dorsal flange of the bone. Metapterygoid, quadrate, and hyomandibula are broadly joined by cartilage of the hyo-symplectic-pterygoquadrate plate. The simple, triangular quadrate is mainly ossified at its condylar articular facet with the lower jaw, and posteroventrally, at the articular facet with preopercle. Spop. : Suspensorium in diplomystids (after Arratia 1987a). — A: Suspensorium of Diplomystes catnposensis, lateral view; note the absence of entopterygoid and ectopterygoid; B: Autopalatine of D. catnposensis, right side, dorsal view; C: Autopalatine of D. chilensis, left side, dorsal view. Arrow points to a notch, : articular facet for lateral ethmoid; : articular facet for maxilla; apa: autopalatine; : articular facet for pterosphenoid; : articular facet for vomer; : articular facet for sphenotic, prootic, and pterotic; : foramen for passage of hyoideomandibular nerve trunk; : foramen for ramus opercularis; hy: hyomandibula; mtg: metapterygoid; Op: opercle; Pop: preopercle; pop. c: preopercular canal; : processus basahs; : processus ectopterygoideus; ; processus maxillaris; q: quadrate; Sop: subopercle; Spop: 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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Keywords: ., bookcentury1900, bookcollectionbiodiversity, booksubjectzoology
