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''Diaphorodoris olakhalafi'' is a [[species]] of [[sea slug]], a dorid [[nudibranch]], a shell-less marine [[gastropod  ]] [[mollusc]] in the family Calycidorididae.

==Distribution==
The species ''Diaphorodoris olakhalafi'' lives in [[Khorfakkan]] Sea, eastern coast of the [[United Arab Emirates]], and the eastern coast of the [[Musandam]] Sea, [[Sultanate of Oman, ]], [[Gulf of Oman, ]], [[Arab Sea, ]], [[Indian Ocean]].

==Description==
Length of ''Diaphorodoris olakhalafi'' is about 5 mm. General body-colour is white. Body elongate-elliptical, bluntly rounded at both ends. The white mantle is ovate with the posterior end of the foot extending behind the end of the mantle. Foot produced behind in a fairly long tail, the anterior end abruptly rounded and simply labiate. The mantle is covered sparsely with small conical tubercles and the five or six gills are attached in a common pocket. The colour of the conical tubercles is white or yellow. Oral tentacles broad lobiform, with a slit-like mouth between them. The gills and rhinophores are orange-red. Rhinophore-sheath with smooth margin. Branchial plumes 5 - 6, small, simply pinnate, completely retractile within a cavity with smooth margin. Integument with spicules. There is a distinctive yellow band at the edge of both the mantle and the foot.

==Diet==
This species feeds on encrusting colonial bryozoans.

==Habitat==
''Diaphorodoris olakhalafi'' was found in sea water in a depth between 2 – 20 meters.

==Etymology / Derivation of the Scientific Name==
The scientific name ''Diaphorodoris'': Diaphanous Doris. From Medieval Latin diaphanus, from Greek diaphanēs, from dia ‘through’ + phainein ‘to show’. Doris in Greek mythology, wife of Nereo, nymph of the waters and mother of Nereids.; and ''olakhalafi'' is Latin for the Diver and Underwater Photographer 'Ola Khalaf' (born 1975).
This new Khorfakkan Nudibranch species was classified and named by the Palestinian-German Zoologist Prof. Dr. Norman Ali Bassam Khalaf-von Jaffa in May 2017, and the specific name ‘''olakhalafi’'' was named after his wife 'Ola Mostafa Esmail Khalaf'. It was a special gift after 20 years of marriage.

==References==
Khalaf-Sakerfalke von Jaffa, Prof. Dr. Sc. Norman Ali Bassam Ali Taher Mohammad Ahmad Mostafa & Ola Mostafa Esmail Mostafa Khalaf (2017). ''Diaphorodoris olakhalafi'' Khalaf, 2017 : A New Dorid Nudibranch Sea Slug Species from the Sea of Khorfakkan, Gulf of Oman, Arab Sea, Indian Ocean. Gazelle: The Palestinian Biological Bulletin. ISSN 0178 – 6288. Number 149, May 2017, pp. 31-47. Dubai and Sharjah, United Arab Emirates. 	http://marine-life-uae.webs.com/diaphorodoris-olakhalafi                              

Ola Khalaf’s Nudibranch (''Diaphorodoris olakhalafi'' Khalaf, 2017). EOL: Encyclopedia of Life. http://eol.org/collections/131000

Species Khorfakkan White Dorid Nudibranch (''Diaphorodoris olakhalafi'' Khalaf, 2017). BioLib.cz. Biological Library Classification. http://www.biolib.cz/en/taxon/id1222805/