*Corresponding author Identification and diversity of Sea Cucumber Species around Hendourabi Island (Persian Gulf

This study aimed to identify the species of sea cucumbers in 2011-2012 in the warm season (July) and cold (February) with SCUBA diving operations around the island was Hendurabi. After transferring the samples to the laboratory, identified by spicules extracted and identified using was valid, and that the two families Holothuriidae Stichopodidae, two species of the genus Holothuria and Stichopus 4 species H o l o t h u r i a h ill a , H o l o t h u r i a l e u c o s p il o t a , H o l o t h u r i a
impatiens and Stichopus hermanni were identified. The results showed that the highest density of H. Leucospilota was. Shannon diversity index of 0.75 and the Biodiversity Indicators 0.54 was calculated. All species examined in this study have a little congestion and therefore has a lower diversity index. The only species of sea cucumber H. herrmani density is higher. The only species of sea cucumber H. leucospilota density and abundance in the study area has a higher ; So, it looks like this is the dominant species on the island, followed by a higher density of species Stichopus hermanni .