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<br /> <br />~ <br />a:: <br /><t <br />-J <br />o <br />..... <br />o <br />a:: <br />a. <br /> <br /> <br />Caudal Fin <br />Principal Rays <br />Hypura1s of Lower Plate <br />Upper Hypura1 Plate <br />Rudimentary Rays <br />Upturned Notochord and <br />Ana1age of Urostyle <br />Median Finfold <br />Dorsal Portion <br />Ventral Portion <br />Urogeneta 1 Duct <br />Vent (Anus) <br />Myomere <br />Myosepta <br />Horizontal Skeletogenous <br />Sep ta <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 />Pterygi ophore <br /> <br />Rudimentary Ray <br /> <br />Coiled or Folded Gut <br />Gas (Air) Bladder <br />Stomach Regi on <br />Heart Region <br />Pectoral Fin <br />C1 i thrum <br />Opercle <br />Melanophore Pigment <br />Pectoral Fin Bud <br />Oto1 i th <br />Auditory (Otic) Vessicle <br />Gill Primordia (exposed) <br />Heart <br />Pericardial Cavity <br />Choroid Fissure of Eye <br />Lens of Eye <br />Olfactory Placode <br />Nares <br />Lower or Mandibular Jaw <br />Upper or Maxillary Jaw <br />Region of Fore-, Mid-, <br />and Hindbrain <br /> <br />~ <br />a:: <br /><t <br />-J <br />o <br />(/) <br />w <br />:E <br /> <br />Fig. 3. Selected anatomical features of cypriniform fish larvae (from Snyder 1981). <br /> <br />8 <br />