homocercal


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Related to homocercal: heterocercal
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homocercal
swordfish tail

ho·mo·cer·cal

 (hō′mə-sûr′kəl, hŏm′ə-)
adj.
Relating to, designating, or characterized by a tail fin having two symmetrical lobes extending from the end of the vertebral column, as in most bony fishes.

[homo- + Greek kerkos, tail + -al.]
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.

homocercal

(ˌhəʊməʊˈsɜːkəl; ˌhɒm-)
adj
(Zoology) ichthyol of or possessing a symmetrical tail that extends beyond the end of the vertebral column, as in most bony fishes. Compare heterocercal
[C19: from homo- + Greek kerkos tail]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

ho•mo•cer•cal

(ˌhoʊ məˈsɜr kəl, ˌhɒm ə-)

adj.
having an equally divided tail, characteristic of adult modern bony fishes.
[1830–40; homo- + Greek kérk(os) tail + -al1]
ho′mo•cer`cy (-ˌsɜr si) n.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.homocercal - possessing a symmetrical tail that extends beyond the end of the vertebral column (as in most bony fishes)
ichthyology - the branch of zoology that studies fishes
heterocercal - possessing a tail with the upper lobe larger than the lower and with the vertebral column prolonged into the upper lobe
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
In postflexion larvae, the caudal fin had a rounded, homocercal outline with about 8 rays in each of the upper and lower lobes.
The creature is labeled "acipactli," and translated as "a swordfish." This is obviously a translation error, as the creature is certainly shark-like and lacks the identifying rostrum and homocercal tail of the swordfish, and swordfish also lack the large triangular teeth depicted in the illustration (Castro, 2002).
5) From 11 to 15 DAH: Larvae swim well and have maneuverability, dorsal end of notochord is a little bent upward, there are bony rays in homocercal caudal fin, a mass of melanophores increases on caudal fin, dorsal fin is developed from embryonic fin wrinkle.