propterygium Definition

metapterygium, basipterygium, mesopterygium, hypural, ichthyopterygium, spineback, urohyal, branchial arch, actinost, sphenotic, epibranchial, pharyngobranchial, threadfish, urostyle, wingfish, protocercal, finlet, interoperculum, epipharyngeal, ceratobranchial, pterotic, parethmoid, preoperculum, suboperculum, hyostylic, sarcopterygian, heterocercy, combtooth blenny, hyomandibular, quillback, lyrie, epimeron, fin, metabranchial, stingbull, omosternum, homacanth, articulary, interhyal, pterygopodium, epicoracoid, hypobranchial, ossean, mentomeckelian, cysticule, platycoelian, lateral line, maxilliped, cephalostyle, metasternum, opisthotic, endaspidean, pessulus, suspensorium, gnathopod, acanthion, pectinibranchiate, epipodite, siphonium, epipodium, gnathopodite, xiphisternum, epiotic, batrachoid, ceratohyal, alinasal, heteracanth, costal cartilage, pleurobranch, amphiarthrosis, pectoral girdle, tibiale, basisphenoid, endognath, handfish, supraclavicle, gnathic, fibulare, opisthion, propodium, basion, gnathite, intersternal, exaspidean, pinniform, endostosis, cercopod, lepidosiren, pin bone, subcartilaginous, petrohyoid, tichorrhine, postclavicle, nasal bone, surangular, pterygoquadrate, statocyst, endostyle, mackerel shark, praecornu,