WebActinopterygii (/ ˌ æ k t ɪ n ɒ p t ə ˈ r ɪ dʒ i aɪ /; from actino- 'having rays', and Ancient Greek πτέρυξ (ptérux) 'wing, fins'), members of which are known as ray-finned fishes, is a class of bony fish. They comprise over 50% of … Bony fishes form a taxonomic group called Osteichthyes (or Euteleostomi, which includes also land vertebrates). They have skeletons made of bone mostly, and can be contrasted with cartilaginous fishes (see below), which have skeletons made mainly of cartilage (except for their teeth, fin spines, and denticles). Bony fishes are divided into ray-finned and lobe-finned fish. Most living fish are …
Actinopterygii - Wikipedia
WebThe meaning of RAY-FINNED is having fins supported by bony or horny rays : acanthopterygian. How to use ray-finned in a sentence. ... Morays belong to a group … Webfinned: 1. a membranous, winglike or paddlelike organ attached to any of various parts of the body of fishes and certain other aquatic animals, used for propulsion, steering, or … puissance dyson v8 animal
Introduction to the Sarcopterygii - University of …
WebThe meaning of FINNED is having a fin or fins —often used in combination. How to use finned in a sentence. having a fin or fins —often used in combination… WebFeb 3, 2024 · For example, all living ray-finned fishes have an everted brain, meaning that the brains of embryonic fish develop by folding tissues from the inside of the embryo outward, like a sock turned ... WebMar 29, 2024 · The teleostome, or osteichthyian, fishes (those having an internal bony skeleton) can be divided into two groups: the subclasses Actinopterygii (ray-finned fishes) and Sarcopterygii (lobe-finned fishes). The latter group includes the lungfishes, which live in marshes, ponds, or streams, and are frequent air breathers. They lay fairly large eggs ... puissance débroussailleuse kawasaki th34