lateral line

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lateral line

n.
A series of sensory pores along the head and sides of fish and some amphibians by which water currents, vibrations, and pressure changes are detected.

lat′eral line′


n.
a linear array of sensory structures along the sides of fish and amphibians.
[1865–70]

lat·er·al line

(lăt′ər-əl)
A series of tube-like canals along the head and sides of fish and some amphibians by which vibrations, as from water currents, and changes in pressure are detected.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.lateral line - sense organs of fish and amphibians; believed to detect pressure changes in the water
amphibian - cold-blooded vertebrate typically living on land but breeding in water; aquatic larvae undergo metamorphosis into adult form
fish - any of various mostly cold-blooded aquatic vertebrates usually having scales and breathing through gills; "the shark is a large fish"; "in the living room there was a tank of colorful fish"
sense organ, sensory receptor, receptor - an organ having nerve endings (in the skin or viscera or eye or ear or nose or mouth) that respond to stimulation
Translations

lateral line

n (of fish)Seitenlinie f
References in periodicals archive ?
Ossicles were defined as very small bony structures, including scales, tubercles, lateral-line elements, and swivel-joint platelets, usually overlooked or given only a cursory treatment in morphological studies of fishes.
Gross morphology and evolution of the mechanoreceptive lateral-line system in teleost fishes.
Among them was that blind cave fish use lateral-line information to build spatial maps of their surroundings.
differs from Sparidentex hasta and from nominal species placed within the genus Sparidentex, by the following combination of characters: body depth 37-41% , head length 33-38% caudal peduncle length 18-20% in standard length; 3 1/2 scale rows between the 5th dorsal-fin spine base and lateral-line , 3 1/2 scale rows between the9th dorsal-fin spine base and lateral-line, second anal-fin spine distinctly stouter and longer than third spine ratio of2nd anal-fin spine and 3rd anal-fin spine is 1.
palomae by the presence of a circular humeral spot that does not pass ventrally below the lateral-line canal, and has a only a diffuse, inconspicuous vertical extension (vs.
Lateral-line scales 42; dorsal fin continuous, with ninth dorsal spine shorter than tenth spine; longest dorsal soft ray (7th or 8th) 2.
Other significant counts and characters include the following: dorsal-fin spines XIII, dorsal-fin rays 13; anal-fin spines III, anal-fin rays 6; pectoralfin rays 18, 18; lateral-line pores 28+1, lateralline scales 47; total gill rakers 27 (7 + 20); second anal-fin spine about the same length as third spine; nasal, preocular, supraocular, postocular, tympanic, parietal, and nuchal head spines present, all relatively strong and sharp; lower edge of opercle smooth, spines absent; posterior edge of maxilla terminating at posterior rim of orbit; mandible scaled; lachrymal protrusions strong, rounded; symphyseal knob weak.
The organ that makes this possible is the lateral-line system, which registers changes in currents and even smaller disturbances, providing backup support for the sense of sight particularly in dark or muddy waters.