An annotated checklist of the chondrichthyans of Papua New Guinea Author White, William T. Author Ko’Ou, Alfred text Zootaxa 2018 2018-04-19 4411 1 1 82 journal article 30231 10.11646/zootaxa.4411.1 abf8082d-c179-4cb2-acc4-3cdef16c4341 1175-5326 1221878 255EE06E-3171-41F3-BB3D-E7D29537A292 Mobula alfredi ( Krefft, 1868 ) Reef Manta Deratoptera alfredi Krefft, 1868 : 3 , 9, Fig. Holotype : AMS I.1731 (stuffed and painted). Type locality: Watson’s Bay at entrance to Sydney Harbour, New South Wales , Australia . Local synonymy: Manta birostris— Munro, 1967 (in part): 15, pl. 2, fig. 18 (New Guinea); Filewood, 1973 (in part): 14 (PNG); Allen, 1998 : 67 (Milne Bay); Allen et al. , 2003 : 112 (Milne Bay); Baine & Harasti, 2007 : 93 (Bootless Bay); Hamilton et al. , 2009 : 73 (northern Bismarck Archipelago); Drew et al. , 2012 : 5 (Bootless Bay). Mobula alfredi— White et al. , 2018 : 284, figs (PNG). PNG voucher material: None. Remarks: Previously considered to be a junior synonym of M. birostris . Previously placed in the genus Manta , recently found to be a junior synonym of Mobula (White et al. , 2017b) . Occasionally observed by divers throughout PNG ; one individual recorded from the bycatch of the Gulf of Papua prawn trawl fishery during recent surveys.