preopercular Definition

preoperculum, suboperculum, interoperculum, operculum, opercular, metabranchial, operculate, branchiostegal, sphenotic, pharyngobranchial, epibranchial, branchial arch, cephalostyle, metapterygium, gnathite, hyostylic, epicoracoid, epipharyngeal, hyomandibular, ceratobranchial, pterotic, propterygium, opisthion, precoracoid, epipterygoid, maxilliped, acanthion, presternum, omosternum, metasternum, urostyle, gnathopod, sphenoid bone, gnathic, siphonium, sphenethmoid, pterygomaxillary, endaspidean, auriculated, presphenoid, gnathopodite, mesopterygium, frontal bone, urohyal, hypobranchial, infrabranchial, pseudobranchia, basion, paragnathus, gnathotheca, parietal bone, petrohyoid, flat bone, pectinibranchiate, basipterygium, supersphenoidal, obelion, mastoid process, prezygapophysis, exaspidean, holaspidean, parethmoid, predorsal, basisphenoid, epimeron, xiphisternum, mentomeckelian, septomaxillary, sagittal suture, maxilloturbinal, upper jawbone, mandibulate, mesobranchial, stephanion, episternum, epiotic, pterygoquadrate, craniometric point, membrane bone, suprabranchial, periotic, omostegite, subsphenoidal, craniate, cercopod, ossean, prescutum, ethmoid bone, zygomatic process, epipodial, postscutellum, amphistylic, opercle, coronal suture, parapleura, platycoelian, protocercal, epicranium, paragnathous, prosthion,