Icelandic Stickleback

The Icelandic threespine stickleback (Gasterosteus islandicus) is a freshwater fish, and one of the few vertebrate species endemic to Iceland. In some literature it is considered as a subspecies of G. aculeatus, though several authorities offer it full species status.

Gasterosteus est un genre de petits poissons osseux (des épinoches) de la famille des gastérostéidés.

Gasterosteus es un género de peces gasterosteiformes de la familia Gasterosteidae. ​ Especies Se reconocen las siguientes especies:​ Gasterosteus aculeatus Linnaeus, 1758 Gasterosteus crenobiontus Băcescu & R. Mayer, 1956 Gasterosteus gymnurus Cuvier, 1829 Gasterosteus islandicus Sauvage, 1874 Gasterosteus microcephalus Girard, 1854 Gasterosteus nipponicus Higuchi, Sakai & A.