Mar 29, 2020 · There are about 28,100 species of fishes known to science. They are divided into 4 classes, 59 orders, 490 families and 4,300 or so genera. The classification system of fish is …

Traditional classification divides fish into three extant classes (Agnatha, Chondrichthyes, and Osteichthyes), and with extinct forms sometimes classified within those groups, sometimes as …

Mar 18, 2025 · Fishes are typically divided into three groups: superclass Agnatha (jawless fishes), class Chondrichthyes (cartilaginous fishes), and superclass Osteichthyes (bony fishes). The …

Traditional classification divides fish into three extant classes (Agnatha, Chondrichthyes, and Osteichthyes), and with extinct forms sometimes classified within those groups, sometimes as …

Mar 18, 2025 · fish, any of approximately 34,000 species of vertebrate animals (phylum Chordata) found in the fresh and salt waters of the world. Living species range from the primitive jawless …

There are about 28,000 existing species of fish, and they are placed in five classes: hagfish, lampreys, cartilaginous fish, ray-finned bony fish, and lobe-finned bony fish. Review Assume …

May 21, 2024 · Fish are aquatic vertebrates that typically have gills, fins, and a streamlined body. They inhabit diverse environments, from freshwater rivers and lakes to salty oceans and deep …

There are 5 major groups of fish, however, each class of fish is separated into smaller taxa such as orders, families, genera and species. The major groups also contain various subgroups and …

Mar 3, 2025 · In summary, fish are not a single class, but are spread across different groups based on their characteristics. The major groupings include two classes of Agnatha (jawless …

Apr 21, 2024 · What are the different categories of fish? The main categories of fish are cartilaginous fish and bony fish. Other categories include jawless fish, marine fish, freshwater …