Updated 8 Nov. 2024
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Lipogenys Goode & Bean 1895 lipo-, from leípō (Gr. λείπω), lacking or wanting; génys (Gr. γένυς), jaw, referring to short, “imperfect” lower jaw, lying within sucker-like opening of mouth

Lipogenys gillii Goode & Bean 1895 in honor of American zoologist Theodore Gill (1837–1914), Smithsonian Institution (Washington, D.C.), who first recognized (and named) this genus in an unpublished manuscript [often but incorrectly spelled with a single terminal “i”]

Lipogenys hyalinumvelum Gomes, Silva & Churro 2024 named for the hyaline membrane (velum) that distinguishes this species from L. gillii

Notacanthus Bloch 1788 nṓtos (Gr. νῶτος), back; acanthus (L.), from ákantha (Gr. ἄκανθα), thorn, referring to isolated dorsal-fin spines and no conspicuous soft rays

Notacanthus abbotti Fowler 1934 in honor of American physician-naturalist William L. Abbott (1860–1936), “who made many important natural history collections for the U.S. National Museum, including fishes”

Notacanthus arrontei Bañón, Barros-García, Baldó, Cojan & de Carlos 2024 in honor of Juan Carlos Arronte, Spanish Institute of Oceanography, a long-time colleague and collaborator in numerous scientific surveys and taxonomic studies

Notacanthus bonaparte Risso 1840 patronym not identified but almost certainly in honor of French biologist Charles Lucien Bonaparte (1803–1857), who named Arctozenus risso (Paralepididae) in honor of Risso the same year [presumably a noun in apposition, without the genitive “i”]

Notacanthus chemnitzii Bloch 1788 in honor of German clergyman and conchologist Johann Hieronimus Chemnitz (1730–1778) of Copenhagen, who supplied Bloch with North Atlantic and Arctic fishes, including holotype of this one

Notacanthus indicus Lloyd 1909 –icus (L.), belonging to: India, referring to its occurrence in the Arabian Sea of the Indian Ocean

Notacanthus laccadiviensis  Konhamkakkada, Kinattumkara, Raghavan & Sivanpillai 2023 –ensis, Latin suffix denoting place: Laccadives (=Lakshadweep), an archipelago in the Laccadive Sea (Central Indian Ocean), off the coast of southwestern India, where type locality (Kavaratti Island) is situated and throughout which this species may likely occur

Notacanthus sexspinis Richardson 1846 sex (L.), six; spinis, from spinus (L.), thorn, referring to its six dorsal-fin spines

Notacanthus spinosus Garman 1899 Latin for thorny or spinulose, probably referring to 8–9 “erectile spines” on dorsal surface but perhaps also referring to three “simple spines” on ventral fin and 12-19 spines on anal fin

Polyacanthonotus Bleeker 1874 polý (Gr. πολύ), many; acanthus (L.), from ákantha (Gr. ἄκανθα), thorn; notus, from nṓtos] (Gr. νῶτος), back, referring to isolated dorsal fin spines, more (26–41) than in Notacanthus (6–15)

Polyacanthonotus challengeri (Vaillant 1888) in honor of HMS Challenger, deep-sea research vessel, from which holotype was collected

Polyacanthonotus merretti Sulak, Crabtree & Hureau 1984 in honor of British ichthyologist Nigel R. Merrett (b. 1940), for his “considerable” contributions to the systematics and ecology of deep-sea bottom fishes

Polyacanthonotus rissoanus (De Filippi & Verany 1857) –anus (L.), belonging to: Antoine Risso (1777–1845), Italian-French naturalist whose collection supplied holotype

Tilurus Kölliker 1853 tílos (Gr. τίλος), anything plucked, shred, fiber; ourá (Gr. οὐρά), tail, referring to tail terminating in a thread [a larval notacanthiform unidentifiable to adult; nevertheless, an available name and therefore a genus inquirenda, provisionally included here]

Tilurus gegenbauri Kölliker 1853 in honor of German comparative anatomist Carl (or Karl) Gegenbaur (1826–1903), who collected and/or provided holotype [species inquirenda, provisionally included here]