megastome Definition

peritreme, siphonostomatous, phragmocone, subumbonal, auriculated, bubble shell, operculate, shell, deltidium, melanian, buccinoid, siphuncle, cochleate, bourrelet, planorbis, boat shell, saxicava, siphonostome, conchiferous, auriform, strombite, paludina, unshell, calipee, pipemouth, calipash, conchite, odontophore, univalve, pectinibranchiate, stromb, tubivalve, lamellibranch, corneocalcareous, sea trumpet, aperture, thirl, paragnathus, paucispiral, mouthlike, suprabranchial, loricate, sea snail, fissurella, phyllostome, actinostome, dactylozooid, endostyle, solenacean, stomatoplasty, balanoid, choanoid, gnathic, ark shell, gnathite, lunule, epipodium, branchiostegal, potamian, maxilliped, hippurite, osselet, escaloped, proostracum, haemocoel, univalvular, nodosarine, lamellibranchiate, trichobranchia, metabranchial, cornu ammonis, sea hare, adoral, concameration, univalved, tusk shell, spoutfish, nosethirl, gnathopodite, trivalve, nephrostome, tooth shell, scaphopod, blood clam, flutemouth, turrilite, redmouth, shellwork, phacellus, conchometry, gnathopod, orthid, wrymouth, ostreaceous, tentaculite, mesobranchial, endosternite, otocrane, mammillate, epipodial,