Sticklebacks

Kattegatcentret, Grenå. Aquarium

Sødringholm

Fiskeri- og Søfartsmuseet, Esbjerg

Culaea inconstansCulaea inconstans, Brook sticklebackFrom USGS

Gasterosteus cataphractus (Pallas).

Apeltes quadracus.

Fifteen-Spined Stickleback. Sea Adder; Aculeatus marinus major

Kattegatcentret Grenå

Sødringholm

Fiskeri- og Søfartsmuseet, Esbjerg

Gasterosteus acculeatus, Variety Brachycentrus.

Apeltes quadracus (Four-spined Stickleback). Fig.22 Embryo in the egg, showing the asymmetrically disposed vitelline vessels; figs. 23 & 24 Other views of the same stage, showing the lateral position of the heart; Fig.25 Dorsal view of a recently hatched embryo, showing the distribution of the brown pigment blotches on the median line and the symmetry in the distribution of the vascular channels on the dorsal side of the yelk; Fig.26 Side view of the same stage, showing the pigmentation and vascular loops in the dorsal fin-fold

Three-Spined Stickleback. Banstickle; Minnis

Kattegatcentret Grenå

Sødringholm

Fiskeri- og Søfartsmuseet, Esbjerg

Gasterosteus aculeatus (da Plehn).

Four-spined Stickleback, Apeltes quadracus Mitchill. Woods Hole, Mass..

Three-spined Stickleback.

Kattegatcentret Grenå

Sødringholm

Fiskeri- og Søfartsmuseet, Esbjerg

Gasterosteus aculeatus.

Ten-spined Stickleback (Pygosteus pungitius).