from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Any of various marine animals of the phylum Ctenophora, having transparent, gelatinous bodies bearing eight rows of comblike cilia used for swimming. Also called comb jelly.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any of various marine animals of the phylum Ctenophora, having lucent, mucilaginous bodies bearing eight rows of comblike cilia used for swimming.
from the GNU version of the Collaborative International Dictionary of English
- n. One of the Ctenophora.
from The Century Dictionary and Cyclopedia
- n. One of the eight fringed or ciliated comb-bearing locomotive organs peculiar to the Ctenophora.
- n. A member of the class Ctenophora; a ctenophoran.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. biradially symmetrical hermaphroditic solitary marine animals resembling jellyfishes having for locomotion eight rows of cilia arranged like teeth in a comb
This ctenophore seems to be exhibiting bioluminescence, but what the “lights” actually represent is reflection or refraction of the photoflood lights from rhythmically beating cilia.
Given the likelihood that the ctenophore lineage is the deepest branch among metazoans, let's have a closer look at the toolkit contained by these creatures to determine if the basic theme of front-loading evolution continues to hold up.
A first striking finding was the high number of SOX gene sequences recovered from both the cnidarian and the ctenophore representatives (10 and 13 from C. hemisphaerica and P. pileus, respectively).
A strange ctenophore, related to comb jellies (aka "sea gooseberries").
The Atlantic ctenophore Mnemiopsis leidyi is considered one of most harmful aquatic invasive species in Europe.
An example of instability caused by a change in biodiversity is that of the introduction of the invasive, carnivorous ctenophore Mnemiopsis leidyi (a jellyfish-like animal) in the Black Sea, which caused the rapid loss of 26 major fisheries species and has been implicated (along with other factors) in the continued growth of the oxygen-deprived “dead” zone.
Clearly more than a colony, a ctenophore might best be described as a society of highly organized and interdependent cells.
Invoking a magical dude in the sky - whether that magic dude is Zeus, Odin, YHWH, FSM, the invisible pink unicorn, or even a hyperintelligent giant ctenophore may it bless us with its divine cilia that disappears whenever it is looked at - is certainly a paradigm shift.
Primary responsibilities are the expansion, organization, and maintenance of cloning libraries derived from cnidarian, ctenophore, crustacean, fish and avian model organisms.
Martindale MQ (2008) Developmental expression of homeobox genes in the ctenophore Mnemiopsis leidyi.