hologephali defined in 1951 year

hologephali - hologephali;
hologephali - A group of fish, including Chimaera. A sub-class or order of Chondrichthyes. Differ from other Ghondrichthyes (See also: Selachii) in their large flat crushing teeth, and the fusion of upper jaw (palatoquadrate) to skull, both associated with diet of molluscs; and in having an operculum covering gill-slits. Rare fish now, but with many fossil relatives. See also: Elasmobranchii.

near hologephali in Knolik

letter "H"
start from "HO"

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