Читать книгу Clinical Guide to Fish Medicine - Группа авторов - Страница 15

Morphologic body shapes of bony fish include fusiform, laterally flattened, ventrally flattened, eel‐like, ribbon‐like, and spheroid (Nikolsky 1963). In these various shapes, different adaptations of common anatomical features are apparent. For example, the coelom of laterally flattened fish (e.g. sole or halibut, Pleuronectiformes) is situated toward the right or left of the animal, ipsilateral to the operculum. When assist‐feeding these fish, the tube is oriented toward the side rather than the midline.

The coelom in most species is found along the ventrum, between the pectoral girdle cranially, vertebrae dorsally, and cloaca or anus caudally. There are exceptions, for example, in electric eels (Electrophorus electricus) and rainbowfish (Melanotaeniidae) the anus has migrated cranially to between the opercula.