Pilumnidae Samouelle, 1819 (Crustacea: Decapoda: Brachyura: Pilumnidae) of the Persian Gulf and Gulf of Oman, with a note on their phylogeny Author Fahimi, Neda Department of Marine Biology, Khorramshahr University of Marine Science and Technology, Author Naderloo, Reza School of Biology and Centre of Excellence in Phylogeny of Living Organisms, College of Science, University of Tehran, Tehran, Iran. rnaderloo @ ut. ac. ir text Zootaxa 2023 2023-04-13 5264 2 256 274 http://dx.doi.org/10.11646/zootaxa.5264.2.6 journal article 10.11646/zootaxa.5264.2.6 1175-5326 9417019C-BF0D-4FE6-A963-1B304E2071D5 Cryptopilumnus pereiodontus ( Davie & Ghani 1993 ) Pilumnopeus pereiodontus Davie & Ghani 1993: 61–65 , figs. 1, 2. Cryptopilumnus pereiodontus . — Hsueh et al. 2009: 328 , tab. 1.— Naderloo et al. 2016: 3 , fig. 5. Material examined. 1 male , CL 3.40 mm , CW 5.13 mm , 1 female , CL 4.12 mm , CW 5.23 mm ( ZUTC 5784 ), Dowlat Park , Abu-Musa I. , Persian Gulf , 25°53′N , 55°01′E , coll. S. Ebrahimnejad , 4.11.2015 ; 10 males , CL 4.24– 3.34 mm , CW 5.13–6.15 mm , 3 females , CL 3.64–5.18 mm , CW 6.90–7.98 mm ( ZUTC 5787 ), Dowlat Park , AbuMusa I. , Persian Gulf , 26°43′N , 55°01′E , sandy bed with boulders, coll. S. Ebrahimnejad , 6.11.2015 ; 8 males , CL 4.76–8.12 mm , CW 6.80–9.51 mm , 5 females , CL 3.80–7.65 mm , CW 5.44–8.10 mm ( ZUTC 5789 ), Dowlat Park , Abu-Musa I. , Persian Gulf , 25°53′N , 55°01′E , rocky intertidal, coll. N. Fahimi , 16.01.2019 . Distribution. Northwestern Indian Ocean: Persian Gulf, Gulf of Oman , Pakistan .