Updated 31 March 2025
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Bathysauroides Baldwin & Johnson 1996 bathýs (Gr. βαθύς), deep, referring to deep-sea habitat; –oides, Neo-Latin from eī́dos (Gr. εἶδος), form or shape, and saurus, from saúra (Gr. σαύρα), lizard, referring to superficial resemblance to lizardfishes (Synodontidae)

Bathysauroides gigas (Kamohara 1952) gígas (Gr. γίγας), giant, allusion not explained, perhaps referring to its “very large” eye, “large teeth on tongue,” “large” ventral fin, and/or its larger size (285 mm) compared with Bathysauropsis malayanus (Ipnopidae, 244 mm), its presumed congener at the time