International Commission on Zoological Nomenclature:
OPINIONS and: DIRECTIONS
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Ethalion Risso 1826, Hist. nat. Europe, 4: 36 (suppressed under the plenary power for the purposes of the Principle of Priority but not for those of the Principle of Homonymy). Opinion 774
Etheostoma Rafinesque 1819 (gender: neuter), type species Etheostoma blennioides Rafinesque 1819 by subsequent designation by Agassiz (1954) (type designation confirmed by Opinion 14)
Etheriigenus [Renier] [1807], [Tav. serv. Class. Conn. Anim.]: Tav. VII (included in a work rejected for nomenclatural purposes). Opinion 427
Ethmia Hьbner [1819], Verzeichniss bekannter Schmettlinge, p. 163 (gender: feminine) (type species, by monotypy: Phalaena pyrausta Hьbner [1819]) (Insecta, Lepidoptera). Opinion 1544
ETHMIIDAE Busck 1909, Proceedings of the Entomological Society of Washington, 11: 91 (type genus: Ethmia Hьbner [1819]), ruled under the plenary power that this name and other familygroup names based on Ethmia are to be given precedence over AZINIDAE Walsingham 1906 and other family-group names based on Azinis Walker 1863 whenever their type genera are placed in the same family-group taxon (Insecta, Lepidoptera). Opinion 1544
Ethusa Roux 1830, Crust. Mйdit. (4): pl. 18 (gender: feminine) (type species, by designation by Fowler 1912 (Ann. Rep. New Jersey State Mus., 1911: 590): Cancer mascarone Herbst 1785, Versuch Naturgesch. Krabben Krebse, 1(6): 191) (Crustacea, Decapoda). Opinion 712
ETISINAE Ortmann 1893, Zoologische Jahrbьcher (Systematik), 7: 429 (type genus Etisus H. Milne Edwards 1834) (Crustacea) Opinion 2204
Etisus H. Milne Edwards 1834, Histoire naturelle des Crustacйs, comprenant l’anatomie, la physiologie et la classification de ces animaux, vol. 1, p. 410 type species by subsequent designation Glaessner (1929) Cancer dentatus Herbst 1785 (Crustacea) Opinion 2204