Some Trachyleberididae (Ostracoda) from Offshore Sediment Around Pulau Sibu, Johor

Study was conducted on ostracods from offshore sediment around Pulau Sibu, Johor. A total of 10 sediment samples were taken from 10 sampling stations. The sampling was carried out in July 2006. The preparation of ostracoda samples was conducted by the method of wet-filtration washings. As a result, a total of409 specimens were collected and identified as Trachyleberididae family. A total of 14 species and 9 genera belonging to Trachyleberididae family were identified. Thegenera were Actinocythereis, Stigmatocythere, Pistocythereis, Borneocythere, Trachyleberis, Venericythere, Keijella, Lankacythere and Bradleya. Station ST8 showed the highest abundance of ostracods with 136 specimens. The dominant species for this family was Pistocythereis euplectella with 95 specimens.