- accessory gill
- (Order Amphipoda):One in a series of I small respiratory structures projecting from bases of coxal gills [Stachowitsch, 1992].
Crustacea glossary. Natural History Museum of Los Angeles County. 2011.
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gill — See: branchia [Martin, 2005]. See: branchia [McLaughlin, 1980]. (Order Cumacea): Branchial lobule [Stachowitsch, 1992]. (Order Decapoda): One of several respiratory projections that may be associated with each thoracic appendage (thoracopod).… … Crustacea glossary
gill helix — noun Etymology: gill (III) : a spiral accessory branchial organ resembling a gill in certain characinids and clupeids … Useful english dictionary
accessory breathing organ — labyrinth organ (a much folded suprabranchial accessory breathing organ found in Anabantoidei. Formed by vascularized expansion of the epibranchial of the first gill arch. Used for respiration in air) … Dictionary of ichthyology
coxal gill — (Order Amphipoda): Respiratory structure projecting from basal segment (coxa) of pereon appendage (peropod); consists of modified epipod. Six pairs of coxal gills (on pereon segments 2 8) represent full complement. (digitiform, foliate, sac like; … Crustacea glossary
circulation — circulable /serr kyeuh leuh beuhl/, adj. /serr kyeuh lay sheuhn/, n. 1. an act or instance of circulating, moving in a circle or circuit, or flowing. 2. the continuous movement of blood through the heart and blood vessels, which is maintained… … Universalium
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
gastropod — /gas treuh pod /, n. 1. any mollusk of the class Gastropoda, comprising the snails, whelks, slugs, etc. adj. 2. Also, gastropodous /ga strop euh deuhs/. belonging or pertaining to the gastropods. [1820 30; < NL Gast(e)ropoda a class of mollusks.… … Universalium
perciform — ▪ fish order Introduction any member of the order Perciformes, a group of bony fishes with more than 6,000 species placed in about 150 families. The order is the largest group of fishes in the world today. Perciform fishes occur in… … Universalium
malacostracan — /mal euh kos treuh keuhn/, adj. 1. belonging or pertaining to the crustacean subclass Malacostraca, which includes the lobsters, shrimps, crabs, etc. n. 2. a malacostracan crustacean. [1825 35; < NL Malacostrac(a) order of crustacea ( < Gk, neut … Universalium