Regalecus argenteus = Regalecus glesne (giant oarfish)
Date 1890
Source Transactions of the Zoological Society of London v. 12 https://archive.org/details/transactionsofzo12zool
Author Thomas Jeffery Parker & Coward
Source: https://commons.wikimedia.org/wiki/File:Regalecus_glesne_plate.jpg

The giant oarfish (Regalecus glesne) is a species of oarfish of the family Regalecidae. It is an oceanodromous species with a worldwide distribution, excluding polar regions. Other common names include Pacific oarfish, king of herrings, ribbonfish, and streamer fish. Regalecus glesne is the world's longest ray-finned fish. Its shape is ribbon-like, narrow laterally, with a dorsal fin along its entire length, stubby pectoral fins, and long, oar-shaped pelvic fins, from which its common name is derived.

Order: Lampriformes
Family: Regalecidae
Genus: Regalecus
Species: Regalecus glesne Ascanius, 1772
Synonyms

Cephalepis octomaculatus Rafinesque, 1810
Cepola gladius Walbaum, 1792
Gymnetrus ascanii Shaw, 1803
Gymnetrus banksii Valenciennes, 1835
Gymnetrus capensis Valenciennes, 1835
Gymnetrus gladius Valenciennes, 1835
Gymnetrus grillii Lindroth, 1798
Gymnetrus hawkenii Bloch, 1795
Gymnetrus longiradiatus Risso, 1820
Gymnetrus telum Valenciennes, 1835
Regalecus banksii (Valenciennes, 1835)
Regalecus caudatus Zugmayer, 1914
Regalecus jonesii Newman, 1860
Regalecus masterii De Vis, 1891
Regalecus pacificus Haast, 1878
Regalecus remipes Brünnich, 1788