en Biology & physiology Biology & physiology كاربردي Orginal research papers The Japanese blunthorn lobster <em>Palinustus waguensis</em> was recorded in the coastal waters of Oman in April and May 2015, and November 2018. The total length of lobsters ranged from 11.4 to 14.0 cm, weight was 48-109 g. The present report represents the first record of this rare species from the Gulf of Oman and expands its known range to the north-west of the Indian Ocean. Descriptions, illustrations, and morphometric data for specimens caught in 2015 are presented. Lobster, Palinustus waguensis, Morphometrics, Oman 1128 1137 http://jifro.ir/browse.php?a_code=A-10-3273-1&slc_lang=en&sid=1 M. Chesalin mike.chesalin@gmail.com 100319475328460041047 100319475328460041047 Yes The A.O. Kovalevsky Institute of Marine Biological Research of RAS N. Al-Abri n.alabri79@hotmail.com 100319475328460041048 100319475328460041048 No Marine Science and Fisheries Centre, Ministry of Agriculture and Fisheries Wealth, Muscat, Sultanate of Oman A. Al-Marzouqi aa.almarzouqi@ymail.com 100319475328460041049 100319475328460041049 No Marine Science and Fisheries Centre, Ministry of Agriculture and Fisheries Wealth, Muscat, Sultanate of Oman S. Al-Shajibi robbanaljanob@yahoo.com 100319475328460041050 100319475328460041050 No Fisheries Research Center-Dhofar, Ministry of Agriculture and Fisheries Wealth, Salalah, Sultanate of Oman