غضروعظميات

Acipenser stellatus, Head Seen from Beneath.

Head of Acipenser heckelii, Seen from Below.

Acipenser sturio. Dorsal view of female.

Acipenser guldenstadtii (Brandt).

Acipenser glaber (Marsilius).

Head of Acipenser huso, Seen from Above.

Acipenser gmelini, Head Seen from Above.

Acipenser naccarii -- Storione.

Acipenser sturio. Lateral view of female.

Acipenser guldenstadtii, Head Seen from Above.

Upper Surface of Head of Acipenser glaber, Showing Dermal Soutes.

Head of Acipenser huso, Seen from Below.

Acipenser gmelini, Head Seen from Below.

Upper Surface of Head of Acipenser naccarii, var. Nardoi.

Aqua Silkeborg

Kattegatcentret Grenå

Acipenser sturio (Linnaeus).

Acipenser guldenstadtii, Head seen from Below.

Sturgeon. Acipenser rubicundus

Acipenser ruthenus (Linnaeus).

Head of Acipenser nasus, Seen from Above.

Kattegat Centret, Grenå, Danmark

Head of Acipenser sturio, Seen from Above.

Lake Sturgeon (Acipenser rubicundus LeSueur).