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Thursday 26 July 2012

Mugiliformes

Mugiliformes

Mugiliformes is an order of Ray-finned fishes, sometime considered as suborder Mugiloidei in Perciformes order. It includes a sole family, Mugilidae. Known since eocene. The representatives of the order are characterised by two shopt devided dorsal fins. The scales are ctenoid or cycloid, cover not only body, but also head. eggs are small, pelagic. Widespread in tropical and subtropical marine waters. Detritofagous shoal fishes.The representatives of the order are important commercial species.The ray-finned fishes are so called because they possess lepidotrichia or "fin rays", their fins being webs of skin supported by bony or horny spines ("rays"), as opposed to the fleshy, lobed fins that characterize the class Sarcopterygii which also, however, possess lepidotrichia. These actinopterygian fin rays attach directly to the proximal or basal skeletal elements, the radials, which represent the link or connection between these fins and the internal skeleton (e.g., pelvic and pectoral girdles).

Mugiliformes

Mugiliformes

Mugiliformes

Mugiliformes

Mugiliformes

Mugiliformes

Mugiliformes

Mugiliformes

Mugiliformes

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