WebChondrichthyes is a class of jawed fishes having a cartilaginous skeleton. The class includes a diverse group of fishes including sharks, rays, skates and chimaeras. They are mostly marine fishes. The other group of fishes are bony fishes, which are included in the class Osteichthyes. WebFish swim bladder in spirit. The actinopterygians, or ray-finned fish, are one of the two major clades of bony fish (Osteichthyes), the other being the lobe-finned fish, or Sarcopterygians. The Chondrichthyes (cartilaginous fish) are the extant sister clade of the Osteichthyes. Below is a cladogram to show these relationships:
Osteichthyes - 7 Classes of the Phylum Chordata
WebCat. No. Class: Order: Family: Genus: Species: Common Name: Coll. Date: Coll. Loc. Sex: TL: SL: FL: HL: Comments : VLB01-1-27: Osteichthyes: Acipenseriformes ... WebOsteichthyes, commonly referred to as the bony fish, is a diverse superclass of vertebrates that have skeletons primarily composed of bone tissue. They can be contrasted with the … heart tattoos on buttocks
Anguiformes
WebOsteichthyes definition, the class comprising the bony fishes. See more. WebOsteichthyes includes the largest number of living species of all scientific classes of vertebrates, ... The names of bony fish families all end in the suffix "dae". Genera and … WebThere are about 25,000 species of bony fishes. 2. Caudal fin usually homocercal symmetrical (Gr. homos- alike). 3. The exoskeleton, if present comprises cycloid, ctenoid or ganoid scales, which are dermal in origin. 4. The mouth is terminal. Digestive tract leads into an anus. Cloaca is absent in bony fishes. heart tattoos for men design