Genus Megachasma♀ TAYLOR, COMPAGNO & STRUHSAKER 1983 メガカスマ属
◆メガカスマ・アリソナエ (絶滅) Megachasma alisonae Shimada & Ward 2016 *2016『The Oldest Fossil Record of the Megamouth Shark from the late Eocene of Denmark and Comments on the Enigmatic Megachasmid Origin:Kenshu Shimada & David John Ward』。
◆メガカスマ・アップレガテイ (絶滅) Megachasma applegatei Shimada, Welton & Long 2014 *2014『A New Fossil Megamouth Shark [Lamniformes, Megachasmidae] from the Oligocene-Miocene of the Western United States:Kenshu Shimada, Bruce J.Welton & Douglas J.Long』。
◆ Megachasma pelagios Taylor, Compagno & Struhsaker 1983
"メガマウスザメ"。IUCN Data Deficient ver.3.1。情報不足(2017年版)。 *2019『Chaves Para a Identificação dos Peixes do Oceano Atlântico Oriental, Mar Mediterrâneo e Mar Negro 1, Myxini, Petromyzontida & Chondrichthyes:Armando Jorge Teles Almeida & Manuel Biscoito』。 *2021『Spatial-Temporal Distribution of Mega-Mouth Shark, Megachasma pelagios Inferred from Over 250 Individuals Recorded in the Three Oceans:Chi-Ju Yu, Shoou-Jeng Joung, Hua-Hsun Hsu, Chia-Yen Lin, Tzu-Chi Hsieh, Kwang-Ming Liu & Atsuko Yamaguchi』。