GENERAL CHARACTERS
Inhabit all sorts of water-fresh,brackish or salt warm or cold water.
Body spindle-shaped and streamlined.
Fins both median and paired ,supported by fin rays of cartilage or bone.
Tail usually homocercal.
Skin with mucous gland,usually with embedded dermal scales of 3 types ganoid,cycloid or ctenoid.
Placoid abescent.
Endoskeleton chiefly of bone.
Claspers absent.
Mouth terminal or subterminal.
Inhabit all sorts of water-fresh,brackish or salt warm or cold water.
Body spindle-shaped and streamlined.
Fins both median and paired ,supported by fin rays of cartilage or bone.
Tail usually homocercal.
Skin with mucous gland,usually with embedded dermal scales of 3 types ganoid,cycloid or ctenoid.
Placoid abescent.
Endoskeleton chiefly of bone.
Claspers absent.
Mouth terminal or subterminal.
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