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Topic: Decapodiformes


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  Decapodiformes
The Decapodiformes includes species with a wide range of body forms and habits.
A key to the families of the Decapodiformes can be found here.
At present we recognize four major lineages within the Decapodiformes but the relationships between them are unresolved.
www.tolweb.org /tree?group=Decapodiformes   (1393 words)

  
 Decapodiformes - Wikipedia, the free encyclopedia
Decapodiformes is a superorder of Cephalopoda, which includes all species with ten limbs; the name derives from the Greek word meaning ten feet.
It is presumed that an ancestral coleoid had five identical pairs of limbs, and that one branch evolved a modified arm pair IV and became the Decapodiformes species.
Another branch evolved and then eventually lost its arm pair II, becoming the Octopodiformes.
en.wikipedia.org /wiki/Decapodiformes   (117 words)

  
 Squid
Teuthida is the largest of the cephalopod orders, edging out the octopuses (order Octopoda) for total number of species, with 298 classified into 28 families.
The order Teuthida is a member of the superorder Decapodiformes (literally "ten legged").
Two other orders of decapodiform cephaopods are also called squid, although they are taxonomically disctinct from Teuthida and differ recognizably in their gross anatomical features.
www.knowledgefun.com /book/s/sq/squid.html   (433 words)

  
 Coleoidea - Wikipedia, the free encyclopedia
The extinct and most primitive form, the Belemnoidea, presumably had ten equally sized arms, in five pairs numbered ventral to dorsal as I, II, III, IV and V. More modern species either modified or lost a pair of arms.
The superorder Decapodiformes has arm pair IV modified into long tentacles with suckers generally only on the club-shaped distal end.
Superorder Octopodiformes has modifications to arm pair II; it is significantly reduced and used only as a sensory filament in the Vampyromorphida, while Octopoda species have totally lost that arm pair.
en.wikipedia.org /wiki/Coleoidea   (220 words)

  
 Mantle: The mantle of bivalves encloses the entire animal, secretes the shell, serves as the first contact with the ...   (Site not responding. Last check: 2007-11-07)
Coleoids are divided into two main groups, the Decapodiformes, with 8 arms and 2 muscular tentacles, and the Octopodiformes, with 8 arms and usually no tentacles (although the enigmatic deep water octopodiform group Vampyromorpha have 2 thin, sensory tentacles that are not homologous to decapodiform tentacles, as they are derived from arme II and IX).
Decapodiformes are characterized, among other characters, by the development of two large catch tentacles from arms IV and VII.
The classification of decapodiforms is in flux, here they are considered to represent several orders (not all orders are given).
www.flmnh.ufl.edu /malacology/IZ2005/LabNotes/Lab9/lab9.htm   (5537 words)

  
 Squid - Everything on Squid (information, latest news, articles,...)
The Vampire Squid, however, is more closely related to the octopuses than to any of the squids.
Decapodiformes - Greek - Taxonomically - Bobtail squid - Sepiolida - Ram's Horn Squid - Spirulida - Vampire Squid
Like all cephalopods, squids are distinguished by having a distinct head, bilateral symmetry, a mantle, and tentacles with suckers; squid, like cuttlefish, have eight arms and two tentacles arranged in pairs.
www.spiritus-temporis.com /squid   (1159 words)

  
 Exciting Cephalopods
Our conservation issues focus on the superorders Decapodiformes (squids and cuttlefishes) and Octopodiformes (octopuses), which are part of the subclass Coleoidea.
The phylogeny of the Decapodiformes is not very clear or widely agreed upon.
What is clear is that this group includes cuttlefish, all of the many kinds of squid, including the elusive Giant Squid.
www.earlham.edu /~merkeka/exciting_cephalopods.htm   (1320 words)

  
 Actin Gene Family Evolution and the Phylogeny of Coleoid Cephalopods (Mollusca: Cephalopoda) -- Carlini et al. 17 (9): ...
actin genes were significantly more divergent than their decapodiform
The monophyly of the Decapodiformes and the Octopodiformes was
emerge basal to the remaining representatives of the Decapodiformes
mbe.oxfordjournals.org /cgi/content/full/17/9/1353   (8188 words)

  
 Schneier on Security: Friday Squid Blogging: Greenland Squid Balls
According to Wiki, squid and cuttlefish are both Decapodiformes (http://en.wikipedia.org/wiki/Decapodiformes).
Posted by: Decapodiformes at October 27, 2006 06:10 PM
Kind of almost related - a popular warm streetside snack here in Osaka is Takoyaki, fried dough balls with a piece of octopus in the middle (think undercooked ball of pankake with a piece of cephalopod).
www.schneier.com /blog/archives/2006/10/friday_squid_bl_39.html   (1265 words)

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