abdominal fishes
those bony fishes having pelvic fins in the abdominal position

Dictionary of ichthyology. 2009.

Look at other dictionaries:

  • Abdominal — Ab*dom i*nal, a. [Cf. F. abdominal.] 1. Of or pertaining to the abdomen; ventral; as, the abdominal regions, muscles, cavity. [1913 Webster] 2. (Zo[ o]l.) Having abdominal fins; belonging to the Abdominales; as, abdominal fishes. [1913 Webster]… …   The Collaborative International Dictionary of English

  • Abdominal ring — Abdominal Ab*dom i*nal, a. [Cf. F. abdominal.] 1. Of or pertaining to the abdomen; ventral; as, the abdominal regions, muscles, cavity. [1913 Webster] 2. (Zo[ o]l.) Having abdominal fins; belonging to the Abdominales; as, abdominal fishes. [1913… …   The Collaborative International Dictionary of English

  • abdominal pore — noun : an excretory usually paired aperture opening within or behind the cloacal region in many fishes and affording communication between the abdominal cavity and the exterior …   Useful english dictionary

  • abdominal fin — noun : one of the posterior paired fins of fishes : pelvic fin …   Useful english dictionary

  • inguinal ring — Abdominal Ab*dom i*nal, a. [Cf. F. abdominal.] 1. Of or pertaining to the abdomen; ventral; as, the abdominal regions, muscles, cavity. [1913 Webster] 2. (Zo[ o]l.) Having abdominal fins; belonging to the Abdominales; as, abdominal fishes. [1913… …   The Collaborative International Dictionary of English

  • respiration — respirational, adj. /res peuh ray sheuhn/, n. 1. the act of respiring; inhalation and exhalation of air; breathing. 2. Biol. a. the sum total of the physical and chemical processes in an organism by which oxygen is conveyed to tissues and cells,… …   Universalium

  • digestive system, human — Introduction  the system used in the human body for the process of digestion. The human digestive system consists primarily of the digestive tract (alimentary canal), or the series of structures and organs through which food and liquids pass… …   Universalium

  • muscle — muscleless, adj. muscly, adj. /mus euhl/, n., v., muscled, muscling, adj. n. 1. a tissue composed of cells or fibers, the contraction of which produces movement in the body. 2. an organ, composed of muscle tissue, that contracts to produce a… …   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

  • 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

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