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Topic: Rajiformes


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 Rajiformes - Wikipedia, the free encyclopedia
Rajiformes is the order of true rays and skates, flat-bodied cartilaginous fishes related to sharks.
In some classifications the order Rajiformes is split into two or three orders, the additional orders being Myliobatiformes, containing the eagle rays and their relatives; Rhinobatiformes, containing the guitarfishes (which may be further split into Rhynchobatiformes, containing the shovelnosed guitarfishes, and Rhiniformes, the guitarfishes).
Named for the venomous spines along the tail; these contain a poison that causes pain and may cause symptoms such as nausea, vomiting, fever, chills, muscle cramps, tremors, paralysis, fainting, seizures, elevated heart rate, and decreased blood pressure (depending on the species).
en.wikipedia.org /wiki/Rajiformes   (203 words)

  
 Rajiformes - Wikipedia
In die Ordnung der Rajiformes werden 10 Familien der Rochen vereinigt.
Viele Wissenschaftler stellen noch eine Ordnung Myliobatiformes auf, in der einige der hier zu den Rajiformes gezählten Familien gestellt werden.
Die Rajiformes haben einen abgeflachten Rumpf und vergrößerte Brustflossen, die, außer bei den Geigenrochen (Rhinobatidae), vom der Seite des Kopfes bis zum Schwanzstiel reichen.
de.wikipedia.org /wiki/Rajiformes   (120 words)

  
 Rajiformes Photo, Rajiformes photos, Phillip Colla Natural History Photography :: Online Photo Search (via CobWeb/3.1 ...   (Site not responding. Last check: 2007-10-08)
Keywords: chondrichthyes, elasmobranch, elasmobranchii, manta birostris, manta ray, myliobatidae, pacific manta ray, rajiformes, ray, underwater
Keywords: chondrichthyes, dasyatidae, dasyatis americana, elasmobranch, elasmobranchii, rajiformes, ray, southern stingray, stingray, underwater
Keywords: chondrichthyes, elasmobranch, elasmobranchii, pacific electric ray, rajiformes, ray, torpedinidae, torpedo californica, torpedo ray, underwater
www.oceanlight.com.cob-web.org:8888 /rajiformes_photo.html   (461 words)

  
 2. BIOLOGY
Sharks belong to the class Chondrichthyes, together with rajiformes, torpedos, sawfish, chimaeras and elephant fish.
This class is divided by main taxonomists into two subclasses: Holocephalii (chimaeras or ratfish and elephant fish) and the Elasmobranchii, which include sharks (classified into 35 families and roughly 465 species
, as can be seen in figure 1) and a group known as the batoids (composed of rajiformes, torpedoes and sawfishes).
www.fao.org /DOCREP/005/X3690E/x3690e06.htm   (850 words)

  
 Raja inornata (California Ray, California Skate)
The family Rajidae belongs to the Class Elasmobranchii (sharks and rays) and the Order Rajiformes.
The main mode of swimming of adult fish in this family is rajiform.
Compared with other fish, the activity level of this family tends to be normal.
zipcodezoo.com /Animals/R/Raja_inornata.asp   (612 words)

  
 Batoidea - Wikipedia, the free encyclopedia (via CobWeb/3.1 planetlab2.isi.jhu.edu)   (Site not responding. Last check: 2007-10-08)
They are commonly known as rays, but that term is also used specifically for batoids in the order Rajiformes, the "true rays".
Some taxonomists argue in favour of placing all batoids in a single order, Rajiformes; others propose a division into five or six orders.
The additional orders in these systems are Myliobatiformes, containing the eagle rays and their relatives; Rhinobatiformes, containing the guitarfishes (which may be further split into Rhynchobatiformes, containing the shovelnosed guitarfishes, and Rhiniformes, the sharkfin guitarfishes).
en.wikipedia.org.cob-web.org:8888 /wiki/Batoidea   (734 words)

  
 BOTW Directory - Science > Biology > Plants and Animals > Animalia > Chordata > Fish > Cartilaginous > Rajiformes
Batoids: Order Rajiformes Skates- 257 to 275 Species - Discusses distinguishing features of the group.
Order Rajiformes; Family Pristidae - The Sawfishes - Shows images of member species.
Orders Rajiformes and Torpediniformes - Rays, Skates, Electric Rays - Provides data on value, nuisance potential and threats.
botw.org /top/Science/Biology/Plants_and_Animals/Animalia/Chordata/Fish/Cartilaginous/Rajiformes   (259 words)

  
 Oceanlink | marine sciences education and fun
These animals are both in the Order Rajiformes, which includes the sharks, skates and rays.
Both stingrays and manta rays are classified in the Order Rajiformes, which includes sharks and skates, and in the Superorder Batoidea.
Both types of rays are cartilagenous fishes, which means that these animals have a skeleton made from cartilege (like in your nose) rather than bone.
oceanlink.island.net /ask/chondrichthyes.html   (10392 words)

  
 =cayman.org= The Rays of Cayman, Cayman Islands, BWI
Rays breath in through "spiracles" on the side of the head behind the eyes, with the water exhaled through the gill slits underneath.
Rajiformes consists of approximately 340 species of rays which can be classified into seven major families:
From here, we can continue our review of Cayman fauna.
www.cayman.org /fauna/rays.htm   (206 words)

  
 ADW: Rajiforme...: Classification (via CobWeb/3.1 planetlab2.isi.jhu.edu)   (Site not responding. Last check: 2007-10-08)
We could not find any information about the taxon Rajiforme...
You might also need to check your spelling or your sources.
If you are looking for a species, you can also search for the generic name (for example, the Myotis part of Myotis lucifugus) and look at the list of recognized species within that genus.
animaldiversity.ummz.umich.edu.cob-web.org:8888 /site/accounts/classification/Rajiforme...   (145 words)

  
 Rays & Sharks. In: Marine Biodiversity - An Introduction. Author: Peter Dyrynda   (Site not responding. Last check: 2007-10-08)
Orders Rajiformes and Torpediniformes - Rays, Skates, Electric Rays
Rays are dorso-ventrally flattened cartilagenous fish with greatly enlarged pectoral fins.
The very low fecundity of rays provides little potential to reverse declines following episodes of unsustainable fishing.
www.solaster-mb.org /mb/rays.htm   (203 words)

  
 Rajiformes - French-English Dictionary WordReference.com
We found no French translation for 'Rajiformes' in our English to French Dictionary.
Look for a definition in our English Dictionary.
Or did you want to translate 'Rajiformes' from French to English?
www.wordreference.com /enfr/Rajiformes   (49 words)

  
 Thornback Ray
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: vertebrata, vertebrates, chondrichthyes, cartilaginous fish, rajiformes, rays, underwater photography
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www.imagequest3d.com /catalogue/macromarine/pages/q011_jpg.htm   (92 words)

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