- hypural fold
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hypural notch
Dictionary of ichthyology. 2009.
hypural fold
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fish — fishless, adj. /fish/, n., pl. (esp. collectively) fish, (esp. referring to two or more kinds or species) fishes, v. n. 1. any of various cold blooded, aquatic vertebrates, having gills, commonly fins, and typically an elongated body covered with … Universalium
Fish — /fish/, n. Hamilton, 1808 93, U.S. statesman: secretary of state 1869 77. * * * I Any of more than 24,000 species of cold blooded vertebrates found worldwide in fresh and salt water. Living species range from the primitive lampreys and hagfishes… … Universalium
caudal flexure — the fold formed at the end of the caudal peduncle when the caudal fin is flexed to determine the position of the posterior edge of the hypural plates. This posterior edge is often difficult to determine as a point for measurement for standard… … Dictionary of ichthyology
caudal peduncle — the wrist like portion of the posterior part of the body between the end of the anal fin and the base of the caudal fin. Its length is measured between the insertion of the anal fin and the caudal flexure (the fold shown by the hind edge of the… … Dictionary of ichthyology
peduncle — 1) caudal peduncle, pedicel (the wrist like portion of the posterior part of the body between the end of the anal fin and the base of the caudal fin. Its length is measured between the insertion of the anal fin and the caudal flexure (the fold… … Dictionary of ichthyology
radix caudae — (plural radices caudae)) caudal peduncle (the wrist like portion of the posterior part of the body between the end of the anal fin and the base of the caudal fin. Its length is measured between the insertion of the anal fin and the caudal flexure … Dictionary of ichthyology
tail wrist — caudal peduncle (the wrist like portion of the posterior part of the body between the end of the anal fin and the base of the caudal fin. Its length is measured between the insertion of the anal fin and the caudal flexure (the fold shown by the… … Dictionary of ichthyology
