Operculum (fish) — Campanologies hectoris 1. operculum (gill cover), 2. lateral line, 3. dorsal fin, 4. adipose fin, 5. caudal peduncle, 6. caudal fin, 7. anal fin, 8. photophores, 9. pelvic fins (paired), 10. pectoral fins (paired) The operculum of a bony fish is… … Wikipedia
anus — (Order Cladocera): Posterior opening of digestive tract at end of postabdomen. (terminal, on dorsal margin) [Stachowitsch, 1992]. (Order Notostraca): Posterior opening of digestive tract at end of telson; located between caudal rami and may be… … Crustacea glossary
Harvestman anatomy — Harvestmen are an order of arachnids, with which they share many characteristics: their body is divided into two body regions (tagmata), the abdomen and the opisthosoma; however, unlike in spiders, the juncture is often poorly defined. They have… … Wikipedia
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
Fish anatomy — The anatomy of fish is primarily governed by the physical characteristics of water, which is much denser than air, holds a relatively small amount of dissolved oxygen, and absorbs light more than air does. Body (1) operculum (gill cover), (2)… … Wikipedia
List of marine aquarium fish species — The following list of marine aquarium fish species commonly available in the aquarium trade is not a completely comprehensive list; certain rare specimens may sometimes be available commercially yet not be listed here. A brief section on each,… … Wikipedia
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
Smallmouth scad — Taxobox name = Smallmouth scad image width = 240px regnum = Animalia phylum = Chordata classis = Actinopterygii ordo = Perciformes subordo = Percoidei superfamilia = Percoidea familia = Carangidae genus = Alepes species = A. apercna binomial =… … Wikipedia