Persian Gulf Bryde's whales, these once common residents can still can be seen in deeper marginal seas such as Gulf of Aden, Israel coasts, and in the Strait of Hormuz. Other species such as the critically endangered Arabian humpback whale, (also historically common in Gulf of Aden and increasingly sighted in the Red Sea since 2006, including in the Gulf of Aqaba), omura's whale, minke whale, and orca also swim into the gulf, while many other large species such as blue whale, sei, and sperm whales were once migrants into the Gulf of Oman and off the coasts in deeper waters, and
Gazetteer of the Persian Gulf, Oman and Central Arabia Gazetteer of the Persian Gulf, Oman and Central Arabia The Gazetteer of the Persian Gulf, Oman and Central Arabia (nicknamed Lorimer) is a two-volume encyclopedia compiled by John Gordon Lorimer. The "Gazetteer" was published in secret by the British government in India in 1908 and 1915 and it served as a handbook for British diplomats in the Arabian Peninsula and Persia. The work was declassified in 1955 under the fifty-year rule, and was widely praised for its extensive coverage of the region's history and geography. It is considered to be "the most important single source of historical material on the