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Topic: Coleoidea


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  Coleoidea - Wikipedia, the free encyclopedia   (Site not responding. Last check: 2007-11-02)
Subclass Coleoidea is the grouping of cephalopods containing all the primarily soft-bodied creatures.
Unlike its sister group the Nautiloidea, which has a rigid outer shell for protection, the coleoids have at most an internal bone or shell that is used for buoyancy or support.
The major dividings of Coleoidea are based upon the number of arms or tentacles and their structure.
en.wikipedia.org /wiki/Coleoidea   (215 words)

  
 Squid   (Site not responding. Last check: 2007-11-02)
The squid is a marine mollusc of the class Cephalopoda, subclass Coleoidea, order Teuthida, of which there are two major suborders, Myopsina and Oegopsina (the latter includes Architeuthis dux, the giant squid).
Being coleoidea means that their bony structure is internalized (in the octopus it is nonexistent); in squid there is a single flat bone plate buried within the soft tissue structure.
The mouth of the squid is beak-like and made of chitin, and contains the radula (the rough tongue common to all molluscs).
bopedia.com /en/wikipedia/s/sq/squid.html   (335 words)

  
 Cephalopod - Wikipedia, the free encyclopedia
Teuthology, a branch of malacology, is the study of cephalopods.
In the Coleoidea, the mollusk shell has been internalized or is absent; this subclass includes the octopuses, squids, and cuttlefish.
The penis in most male Coleoidea is a long and muscular end of the gonoduct used to transfer spermatophores to a modified arm called a hectocotylus.
en.wikipedia.org /wiki/Cephalopods   (942 words)

  
 MOLLUSCA
There are two Sub-classes, the Nautiloidea with six species, and Coleoidea which includes the squids, octopuses and cuttlefishes.
Cuttlefish have an internal calcareous shell, squids have a thin cartilaginous pen, and in octopuses the shell is absent.
Coleoidea have cells in their skin (chromatophores) that allow them to change colour rapidly, it is thought that colour change is one form of communication.
www.bumblebee.org /invertebrates/MOLLUSCA.htm   (1003 words)

  
 Palaeos Metazoa: Mollusca: Cyrtosoma: Coleoidea   (Site not responding. Last check: 2007-11-02)
About 700 species of Recent coleoids are known (with probably more, especially deep sea forms, waiting to be discovered), and there are some 2500 fossil species, although some of these would be invalid taxa.
The Coleoidea first appear with certainty in the Early Carboniferous, but only become numerous during the Mesozoic.
A Linnean classification of the coleoids may be found here.
www.palaeos.com /Invertebrates/Molluscs/Cyrtosoma/Coleoidea/Coleoidea.html   (207 words)

  
 Coleoidea   (Site not responding. Last check: 2007-11-02)
The Coleoidea contains all living cephalopods except for species of pearly nautilus.
Haas, W. Suckers and arm hooks in Coleoidea (Cephalopoda, Mollusca) and their bearing for phylogenetic systematics.
Haas, W. The evolutionary history of the eight-armed Coleoidea.
tolweb.org /tree?group=Coleoidea&contgroup=Cephalopoda   (1503 words)

  
 Cephalopoda   (Site not responding. Last check: 2007-11-02)
Coleoidea Bather, 1888 (octopods, squids, cuttlefishes and their relatives)
Two groups of cephalopods exist today: The Nautiloidea with a few species of the pearly nautilus, and the Coleoidea, containing the squids, cuttlefishes, octopods and vampire squids, which is represented by about 700 species.
Cephalopods are the most active of the molluscs and some squids rival fishes in their swimming speed.
tolweb.org /tree?group=Cephalopoda&contgroup=Mollusca   (1080 words)

  
 HACKED BY DOGUBEY & DeSPeRaDo - Chameleons of the Ocean   (Site not responding. Last check: 2007-11-02)
One of the two groups of cephalopods that exist today is the Coleoidea, which is made up of the squids, octopods, cuttlefishes, and vampire squids.
The Cephalopoda is an ancient group of the Mollusca and have been among the dominant large predators in the ocean at various times in geological history.
One particularly interesting member of the Coleoidea is the Cuttlefish.  They exhibit an amazing array or color schemes.
www.ecofactor.com /print-3.html   (561 words)

  
 TONMO.com Forums - View Single Post - New Papers on Fossil Cephalopods
The reason for this disparity is the lack of a calcified shell (or a shell of any kind) in the recent coleoid groups.
There are also profound differences in life history, physiology, anatomy and ecology between the Coleoidea and the other extant cephalopod group, the Nautiloidea, implying that the radiation of the Coleoidea involved more than just modifying the shell.
Consequently, and in contrast to the other major molluscan clades, understanding coleoid phylogeny is heavily dependent on a variety of studies of extant taxa.
www.tonmo.com /forums/showpost.php?p=27409&postcount=5   (203 words)

  
 Cephalopod
Coleoidea, the mollusk shell has been internalized or is absent; this subclass includes the octopuses, squids, and
Nautiloidea the shell remains; this subclass includes the
The penis in most male Coleoidea is a long and muscular end of the
www.vindia.info /c/Cephalopod.asp   (592 words)

  
 Cephalopoda Classification   (Site not responding. Last check: 2007-11-02)
Coleoidea differ from other cephalopods by having only one pair of gills and one pair of nephridia (kidneys); all other cephalopods have 2 pairs of both gills and nephridia.
Coleoidea entered the fossil record during the Devonian and are still around today.
EVOLUTE-When the early whorls are still visible with a slight overlap of newer whorls over the older ones.
www.earth.rochester.edu /ees207/Cephalopoda/hardman_ceph3.html   (442 words)

  
 Flickr: Tentacles - The Pool for Cephalopods of the Subclass Coleoidea
Pictures of squid and octopi, alive or dead.
Plus, pictures of pictures (or other kinds of depictions) of octopi and squid.
Feed – Subscribe to Tentacles - The Pool for Cephalopods of the Subclass Coleoidea discussion threads
www.flickr.com /groups/tentacles   (86 words)

  
 Exciting Cephalopods
There are three subclasses of cephalopods: Coleoidea, Nautiloidea, and Ammonoidea, which is extinct.
Our conservation issues focus on the superorders Decapodiformes (squids and cuttlefishes) and Octopodiformes (octopuses), which are part of the subclass Coleoidea.
This website is part of a Biology 26 class project on the conservation of global biodiversity.
www.earlham.edu /~merkeka/exciting_cephalopods.htm   (1320 words)

  
 This article is about the sea animal For other uses...
In American fish markets and restaurants, it is usually known by the Greek plural "calamari".
Subclass Coleoidea Coleoidea: squid squid, octopus octopus, cuttlefish cuttlefish
Family Loliginidae Loliginidae: inshore, calamari, and grass squid
www.biodatabase.de /squid   (413 words)

  
 Amazon.ca: Type Catalog of Fossil Invertebrates Mollusca: Coleoidea, Monoplacophora and Scaphopoda in the Yale Peabody: ...   (Site not responding. Last check: 2007-11-02)
Amazon.ca: Type Catalog of Fossil Invertebrates Mollusca: Coleoidea, Monoplacophora and Scaphopoda in the Yale Peabody: Books
Type Catalog of Fossil Invertebrates Mollusca: Coleoidea, Monoplacophora and Scaphopoda in the Yale Peabody
Publisher: learn how customers can search inside this book.
www.amazon.ca /exec/obidos/ASIN/0912532467   (94 words)

  
 Tentacles - The Pool for Cephalopods of the Subclass Coleoidea pool slideshow on Flickr   (Site not responding. Last check: 2007-11-02)
Tentacles - The Pool for Cephalopods of the Subclass Coleoidea pool slideshow on Flickr
The Tentacles - The Pool for Cephalopods of the Subclass Coleoidea pool
Learn more, or create yourself a free account!
www.flickr.com /groups/tentacles/pool/show   (48 words)

  
 Coleoidea: Facts and details from Encyclopedia Topic   (Site not responding. Last check: 2007-11-02)
Subclass (biology) a taxonomic category below a class and above an order
[For more, click on this link] Coleoidea is the grouping of cephalopod Marine mollusk characterized by well-developed head and eyes and sucker-bearing tentacles
The extinct and most primitive form, the Belemnoidea Order of extinct dibranchiate cephalopods related to the surviving spirulas
www.absoluteastronomy.com /c/coleoidea   (566 words)

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