insculptus, Gasterosteus Richardson [J.] 1855:356, Pl. 25 [The last of the Arctic voyages in search of Sir J. Franklin; ref. 18631] Northumberland Sound, western Greenland. Holotype (unique): whereabouts unknown. Not at BMNH. •Synonym of Gasterosteus aculeatus Linnaeus 1758, subspecies aculeatus -- (Okada 1961:605 [ref. 6363]). •Synonym of Gasterosteus aculeatus Linnaeus 1758 -- (Monod 1973:282 [ref. 7193], Denys et al. 2022:397 [ref. 40085]). Current status: Synonym of Gasterosteus aculeatus Linnaeus 1758. Gasterosteidae. Habitat: freshwater, brackish, marine.