lancelet

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lance·let

 (lăns′lĭt)
n.
Any of various small chordate marine organisms of the subphylum Cephalochordata, having a long thin body with a notochord but no cranium or vertebrae, and usually found buried in sand. Also called amphioxus, cephalochordate.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

lancelet

(ˈlɑːnslɪt)
n
(Animals) any of several marine animals of the genus Branchiostoma (formerly Amphioxus), esp B. lanceolatus, that are closely related to the vertebrates: subphylum Cephalochordata (cephalochordates). Also called: amphioxus
[C19: referring to the slender shape]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

lance•let

(ˈlæns lɪt, ˈlɑns-)

n.
any small, lancet-shaped burrowing marine animal of the subphylum Cephalochordata, having a notochord and numerous gill slits. Also called amphioxus.
[1565–75]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

lance·let

(lăns′lĭt)
Any of various small, transparent, fish-like animals that live in water and have a structure similar to that of vertebrates, but with a notochord instead of a true backbone. Lancelets are cephalochordates. Also called amphioxus.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.lancelet - small translucent lancet-shaped burrowing marine animallancelet - small translucent lancet-shaped burrowing marine animal; primitive forerunner of the vertebrates
cephalochordate - fish-like animals having a notochord rather than a true spinal column
genus Amphioxus - type genus of the Amphioxidae
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
In Fishes of the western North Atlantic, part 1: lancelets, cyclostomes, sharks (A.
One of the Foundation's first projects was a series of scholarly books titled "Fishes of the Western North Atlantic." The first volume of the series, published in 1948, covered lancelets, cyclostomes, and sharks.
A list of the lancelets of the world with diagnoses of five new species of Branchiostoma.
Given the derived body core musculature in hagfishes, it is clear that chordate axial musculature underwent more than a simple evolutionary transition from the serially arranged, segmented muscles in basal taxa (e.g., lancelets) and most fishes, to the non-segmented, complex arrangements of overlapping oblique muscles of tetrapods.
Fishes of the Western North Atlantic Part One: Lancelets, Cyclostomes, Sharks.
Helinus lancelets belongs to family Rhamnaceae, and locally called Haldur.
(56) Another group of primitive chordates are the cephalochordates (represented today by the lancelets) that possess a notochord as adults, pharyngeal slits, and muscles arranged in parallel bundles.
The leaves are alternately arranged, lancelets shaped, 6 to 16 inches, 15 to 40.6cm, in length and leathery in texture.
Washburn's 13 chapters include discussion of not fewer than 100 species, including ants, bees, caterpillars, cats, chickens, chubs, clams, cockroaches, cows, crabs, crayfish, dogs, dragonflies, earthworms, elephants, flies, frogs, goldfish, grasshoppers, guinea pigs, horseshoe crabs, jellyfish, lancelets, leeches, mice, minnows, monkeys, pigeons, pike, planarians, potato beetles, raccoons, salamanders, sea anemones, sea-urchins, shrimps, silkworms, snails, spiders, tortoises, wasps, water beetles, and (yes) rats.
A sequence analysis of AChEs from 68 species obtained from GenBank also detected C289 in cockroaches, lancelets, rice beetles, bollworms, silkworms, honey bees, moths, and armyworms.
Lancelets and other invertebrates wield a primitive, or innate, immune system.