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<br />Caudal Fin <br />Principal Rays <br />Hypurals of lower Plate <br />Upper Hypura1 Plate <br />Rudimentary Rays <br />Upturned Notochord and <br />Analage of Urosty1e <br />Median Finfold <br />Dorsal Portion <br />Ventra 1 Portion <br />Urogeneta 1 Duct <br />Yen t (Anus) <br />Myomere <br />Myosepta <br />Horizontal Skeletogenous <br />Septa <br />Preana 1 Fi nfo 1 d <br />Pelvic Fin Bud <br />Yolk within Yolk-sac <br />Notochord <br />Dorsa 1 Fi n <br />Principal Rays <br />Pterygiophore <br /> <br />Rudimentary Ray <br /> <br />Coiled or Folded Gut <br />Gas (Air) Bladder <br />Stomach Region <br />Heart Region <br />Pectoral Fin <br />C1 i thrum <br />Opercle <br />Melanophore Pigment <br />Pectoral Fin Bud <br />to 11 th <br />Auditory (Otic) Vessicle <br />Gill Primordia (exposed) <br />Hea rt <br />Pericardia1 Cavity. <br />Choroid Fissure of Eye <br />Lens of Eye <br />01 factory Placode <br />Na res <br />Lower or Mandibular Jaw <br />Upper or Maxillary Jaw <br />Region of Fore-. Mid-. <br />and Hindbrain <br /> <br />~ <br />0:: <br /><t <br />...J <br />o <br />~ <br />o <br />0:: <br />a. <br /> <br /> <br /> <br /> <br />~ <br />c:: <br /><t <br />...J <br />o <br />(J) <br />w <br />:! <br /> <br />Fig. 3. Selected anatomical features of cypriniform fish larvae (from Snyder 1981). <br /> <br />9 <br />