Ammolagena clavata (Jones and Parker, 1860), an agglutinated benthic foraminiferal species - First report from the recent sediments, Arabian Sea, Indian Ocean region

摘要

We report the rare presence of the agglutinated foraminiferal species Ammolagena clavata (Jones and Parker, 1860) for the first time from the Recent sediments of the Indian Ocean region. This species has previously been reported in Recent sediments from all other oceans except the Indian Ocean. In the present study from the Arabian Sea, it has been found in the depth range of 1650-2050 m, compared to the depth range of 684-2503 m in the Pacific and 553-4500 m in the Atlantic regions. Earlier reports indicated its presence as attached specimens, either on large quartz grains or on some other larger benthic foraminiferal species only. In our material, this species has also been found attached to the planktonic foraminiferal species Globorotalia menardii.