Periophthalmus waltoni Koumans, 1941 [N]—Walton’s mudskipper

Taxonomy. Original description: Periophthalmus waltoni Koumans, 1941: 288 [Iraq and Pakistan: syntypes: RMNH 17004 (2), ZSI (4, not found) Iraq and Pakistan. Syntypes: RMNH 17004 (2), ZSI (4, not found)].—Iraq synonyms: None.—Revisions: Murdy (1989: 44).—Illustration: Randall (1995: 341, fig.) .

Status in Iraq. First record from Iraq by Khalaf (1961); confirmed by Mohamed &Abood (2017a).—Iraq materials: RMNH.

Distribution and habitat. Distribution in Iraq: Shatt al-Arab River.—General distribution: Northwestern Indian Ocean: Persian Gulf and Gulf of Oman east to Pakistan.—Habitat: This species is a demersal species that occurs in brackish to marine waters and is found in open mudflats and nearby stunted mangroves. Freshwater, brackish, marine.

Economic importance. No commercial importance.

Conservation. Conservation status in Iraq: Unknown.—IUCN: LC (IUCN 2023).—Threats: EUT, HAB.—Low sensitivity to human activities.—Not considered as a keystone species.—Decline status: Unknown.—Low priority for conservation action.