In Iran, sea cucumbers are not well known and they are not consumed as food. With this and the lack of scientific knowledge about them, this study has been conducted in order to identify the present species in the northern part of the Persian Gulf. Samples were collected in the sub-tidal zone of Larak Island (Persian Gulf) via SCUBA diving in August 2011. The literature review on the distribution revealed that this is the first report of Holothuria impatiens from Larak Island (Persian Gulf). The species identification was made using morphological keys and review of their ossicles.
