- principal caudal ray
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see principal ray
Dictionary of ichthyology. 2009.
Dictionary of ichthyology. 2009.
principal ray — a large ray, branched or unbranched, larger than the minor or rudimentary rays. In the caudal fin the principal rays are usually attached to the hypural plates, are larger than the rudimentary rays; and usually include, in adults, the branched… … Dictionary of ichthyology
caudal fin ray count — usually only the principal or main rays are counted, the tiny rudimentary, often procurrent rays are not included. In fishes with branched rays, the principal count is the number of branched rays plus two. These rays are usually markedly larger… … Dictionary of ichthyology
ray — 1. A beam of light, heat, or other form of radiation. The rays from radium and other radioactive substances are produced by a spontaneous disintegration of the atom; they are electrically charged particles or electromagnetic waves of extremely… … Medical dictionary
Fin ray — Fin Fin, n.[OE. finne, fin, AS. finn; akin to D. vin, G. & Dan. finne, Sw. fena, L. pinna, penna, a wing, feather. Cf. {pen} a feather.] 1. (Zo[ o]l.) An organ of a fish, consisting of a membrane supported by rays, or little bony or cartilaginous … The Collaborative International Dictionary of English
Longfin escolar — Taxobox name = Longfin escolar regnum = Animalia phylum = Chordata classis = Actinopterygii ordo = Perciformes familia = Scombrolabracidae genus = Scombrolabrax species = S. heterolepis binomial = Scombrolabrax heterolepis binomial authority =… … Wikipedia
C1 — principal caudal fin ray … Dictionary of ichthyology
Breitensteinia — Taxobox name = Breitensteinia regnum = Animalia phylum = Chordata classis = Actinopterygii ordo = Siluriformes familia = Akysidae subfamilia = Parakysinae genus = Breitensteinia genus authority = Steindachner, 1881 type species = Breitensteinia… … Wikipedia
Definiciones usuales en hidráulica — Definiciones usuales en hidráulica, se agrupan aquí algunas definiciones de conceptos generalmente usados en Hidráulica, con la intención de facilitar la lectura de algunos artículos relacionados a este tema. Solo se reportan aquí las… … Wikipedia Español
atheriniform — ▪ fish Introduction any member of the order Atheriniformes, containing 15 families of marine and freshwater spiny finned fishes (spiny finned fish), including the flying fishes (flying fish) (see ), needlefishes (needlefish), silversides,… … Universalium
Danionin — Danionins Danio rerio zebra danio Scientific classification Kingdom: Animalia … Wikipedia