- opercular bones
- noun plural
: the bony plates developed in and supporting the gill cover in most fishes and being usually the opercle, preopercle, subopercle, and interopercle
Useful english dictionary. 2012.
Useful english dictionary. 2012.
opercular membrane — the tissue covering the gills laterally and enclosing (including in some, but not other definitions) the opercle, preopercle, subopercle and interopercle bones. In most Teleostei, where the membranes from each side meet under the head on the… … Dictionary of ichthyology
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
Ichthyology terms — Ichthyology uses several terms that are unique to the science.Contents: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z NOTOC A * Abdomen: belly * Abdominal: pertaining to the belly * Actinosts: a series of bones at the base of the pectoral… … Wikipedia
amphibian — /am fib ee euhn/, n. 1. any cold blooded vertebrate of the class Amphibia, comprising frogs and toads, newts and salamanders, and caecilians, the larvae being typically aquatic, breathing by gills, and the adults being typically semiterrestrial,… … Universalium
eel — eellike, adj. eely, adj. /eel/, n., pl. (esp. collectively) eel, (esp. referring to two or more kinds or species) eels. 1. any of numerous elongated, snakelike marine or freshwater fishes of the order Apodes, having no ventral fins. 2. any of… … 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
reproductive system, animal — Introduction any of the organ systems by which animals reproduce. The role of reproduction is to provide for the continued existence of a species; it is the process by which living organisms duplicate themselves. Animals compete with… … Universalium
syndrome — The aggregate of symptoms and signs associated with any morbid process, and constituting together the picture of the disease. SEE ALSO: disease. [G. s., a running together, tumultuous concourse; (in med.) a concurrence of symptoms, fr. syn,… … Medical dictionary
os tabulare — (plural ossa tabularia)) tabular bone (extrascapula (a small bone bordering the posterior margin of the skull roof in primitive Teleostomi. These bones apparently originate from enlarged scales. One of a series of from 2 8 bones known variously… … Dictionary of ichthyology