Taxonomic names from E. Billings 1865

  • Archinacella instabilis incurva, E. Billings 1865 [unclassified subspecies]
  • Avicula hermione, E. Billings 1865 [Myodakryotidae]
  • Bathyurellus marginiatus, E. Billings 1865 [Bathyuridae]
  • Bellerophon macer, E. Billings 1865 [Tropidodiscidae]
  • Bellerophon miser, E. Billings 1865 [Bellerophontidae]
  • Bellerophon palinurus, E. Billings 1865 [Tropidodiscidae]
  • Calathium paradoxicum, E. Billings 1865 [Haplistiidae]
  • Cheirurus satyrus, E. Billings 1865 [Cheiruridae]
  • Chiton canadensis, E. Billings 1865 [Polyplacophora]
  • Clisospira, E. Billings 1865 [Clisospiridae]
  • Clisospira curiosa, E. Billings 1865 [Clisospiridae]
  • Conocardium immatura, E. Billings 1865 [Conocardiidae]
  • Ctenodonta abrupta, E. Billings 1865 [Ctenodontidae]
  • Cyclonema hageri, E. Billings 1865 [Platyceratidae]
  • Cyclonema montrealense, E. Billings 1865 [Platyceratidae]
  • Cyclonema phaedra, E. Billings 1865 [Eotomariidae]
  • Cyrtoceras syphax, E. Billings 1865 [Ellesmeroceratidae]
  • Ecculiomphalus atlanticus, E. Billings 1865 [Raphistomatidae]
  • Ecculiomphalus distans, E. Billings 1865 [Ophiletidae]
  • Eopteria, E. Billings 1865 [Eopteriidae]
  • Eopteria ornata, E. Billings 1865 [Eopteriidae]
  • Eopteria richardsoni, E. Billings 1865 [Eopteriidae]
  • Eopteria typica, E. Billings 1865 [Eopteriidae]
  • Euchasma, E. Billings 1865 [Eopteriidae]
  • Eunema erigone, E. Billings 1865 [Lophospiridae]
  • Harpes ottawaensis (E. Billings 1865) [Harpetidae]
  • Helicotoma eucharis, E. Billings 1865 [Raphistomatidae]
  • Helicotoma gorgonea, E. Billings 1865 [Helicotomidae]
  • Helicotoma miser, E. Billings 1865 [Helicotomidae]
  • Helicotoma proserpina, E. Billings 1865 [Helicotomidae]
  • Helicotoma tritonia, E. Billings 1865 [Helicotomidae]
  • Holopea gracia, E. Billings 1865 [Holopeidae]
  • Holopea guelphensis, E. Billings 1865 [Holopeidae]
  • Holopea harmonia, E. Billings 1865 [Elasmonematidae]
  • Holopea lavinia, E. Billings 1865 [Holopeidae]
  • Holopea lavinia conica, E. Billings 1865 [Holopeidae]
  • Holopea nereis, E. Billings 1865 [Holopeidae]
  • Holopea ophelia, E. Billings 1865 [Straparollinidae]
  • Holopea pyrene, E. Billings 1865 [Holopeidae]
  • Lecanospira nereine (E. Billings 1865) [Ophiletidae]
  • Lingula briseis, E. Billings 1865 [Obolidae]
  • Lingula cobourgensis, E. Billings 1865 [Lingulasmatidae]
  • Lingula nympha, E. Billings 1865 [Obolidae]
  • Litoceras calciferum (E. Billings 1865) [Trocholitidae]
  • Lituites pluto, E. Billings 1865 [Ruedemannoceratidae]
  • Maclurea acuminata, E. Billings 1865 [Macluritidae]
  • Maclurea affinis, E. Billings 1865 [Macluritidae]
  • Maclurea crenulata, E. Billings 1865 [Macluritidae]
  • Maclurea emmonsi, E. Billings 1865 [Macluritidae]
  • Maclurea oceana, E. Billings 1865 [Macluritidae]
  • Maclurea ponderosa, E. Billings 1865 [Macluritidae]
  • Maclurea rotundata, E. Billings 1865 [Macluritidae]
  • Maclurea speciosa, E. Billings 1865 [Ophiletidae]
  • Maclurea sylpha, E. Billings 1865 [Macluritidae]
  • Maclurea transitionis, E. Billings 1865 [Ophiletidae]
  • Metoptoma alceste, E. Billings 1865 [Metoptomatidae]
  • Metoptoma anomala, E. Billings 1865 [Scenellidae]
  • Metoptoma augusta, E. Billings 1865 [Scenellidae]
  • Metoptoma erato, E. Billings 1865 [Tryblidiidae]
  • Metoptoma estella, E. Billings 1865 [Archinacellidae]
  • Metoptoma eubule, E. Billings 1865 [Tryblidiidae]
  • Metoptoma hyrie, E. Billings 1865 [Tryblidiidae]
  • Metoptoma instabilis, E. Billings 1865 [Archinacellidae]
  • Metoptoma melissa, E. Billings 1865 [Archinacellidae]
  • Metoptoma montrealensis, E. Billings 1865 [Scenellidae]
  • Metoptoma niobe, E. Billings 1865 [Tryblidiidae]
  • Metoptoma nycteis, E. Billings 1865 [Tryblidiidae]
  • Metoptoma orithyia, E. Billings 1865 [Scenellidae]
  • Metoptoma orphyne, E. Billings 1865 [Archinacellidae]
  • Metoptoma quebecensis, E. Billings 1865 [Archinacellidae]
  • Metoptoma robusta, E. Billings 1865 [Metoptomatidae]
  • Metoptoma simplex, E. Billings 1865 [Archinacellidae]
  • Metoptoma superba, E. Billings 1865 [Archaeophialidae]
  • Metoptoma trentonensis, E. Billings 1865 [Archinacellidae]
  • Metoptoma venillia, E. Billings 1865 [Scenellidae]
  • Murchisonia acrea, E. Billings 1865 [Eotomariidae]
  • Murchisonia ada, E. Billings 1865 [Eotomariidae]
  • Murchisonia adelina, E. Billings 1865 [Lophospiridae]
  • Murchisonia agilis, E. Billings 1865 [Hormotomidae]
  • Murchisonia alexandra, E. Billings 1865 [Loxonematidae]
  • Murchisonia artemesia, E. Billings 1865 [Hormotomidae]
  • Murchisonia augustina, E. Billings 1865 [Subulitidae]
  • Murchisonia cassandra, E. Billings 1865 [Hormotomidae]
  • Murchisonia catharina, E. Billings 1865 [Lophospiridae]
  • Murchisonia cicela, E. Billings 1865 [Murchisoniidae]
  • Murchisonia cicelia, E. Billings 1865 [Lophospiridae]
  • Murchisonia estella, E. Billings 1865 [Hormotomidae]
  • Murchisonia hercynia, E. Billings 1865 [Pseudophoridae]
  • Murchisonia hermione, E. Billings 1865 [Lophospiridae]
  • Murchisonia hyale, E. Billings 1865 [Hormotomidae]
  • Murchisonia missisquoi, E. Billings 1865 [Lophospiridae]
  • Murchisonia mylitta, E. Billings 1865 [Murchisoniidae]
  • Murchisonia placida, E. Billings 1865 [Murchisoniidae]
  • Murchisonia procris, E. Billings 1865 [Straparollinidae]
  • Murchisonia simulatrix, E. Billings 1865 [Subulitidae]
  • Murchisonia sororcula, E. Billings 1865 [Lophospiridae]
  • Murchisonia vesta, E. Billings 1865 [Hormotomidae]
  • Murchisonia vitellia, E. Billings 1865 [Plethospiridae]
  • Murchisonia xanthippe, E. Billings 1865 [Murchisoniidae]
  • Nautilus calciferus, E. Billings 1865 [Nautilidae]
  • Nieszkowskia satyrus (E. Billings 1865) [Cheiruridae]
  • Obolella desiderata, E. Billings 1865 [Elkaniidae]
  • Ophileta bella, E. Billings 1865 [Ophiletidae]
  • Ophileta disjuncta, E. Billings 1865 [Raphistomatidae]
  • Ophileta nereine, E. Billings 1865 [unclassified species]
  • Orthis gemmicula, E. Billings 1865 [Orthidiellidae]
  • Orthis iphigenia, E. Billings 1865 [Plaesiomyidae]
  • Paraharpes ottawaensis, E. Billings 1865 [Harpetidae]
  • Petraster bellulus, E. Billings 1865 [Mesopalaeasteridae]
  • Pleurotomaria agarista, E. Billings 1865 [Pleurotomariidae]
  • Pleurotomaria agave, E. Billings 1865 [Holopeidae]
  • Pleurotomaria amphitrite, E. Billings 1865 [Sinuopeidae]
  • Pleurotomaria arabella, E. Billings 1865 [Raphistomatidae]
  • Pleurotomaria arachne, E. Billings 1865 [Trochonematidae]
  • Pleurotomaria calphurnia, E. Billings 1865 [Helicotomidae]
  • Pleurotomaria canadensis, E. Billings 1865 [Raphistomatidae]
  • Pleurotomaria deiopei, E. Billings 1865 [Luciellidae]
  • Pleurotomaria dryope, E. Billings 1865 [Eotomariidae]
  • Pleurotomaria elora, E. Billings 1865 [Euomphalidae]
  • Pleurotomaria etna, E. Billings 1865 [Sinuopeidae]
  • Pleurotomaria eugenia, E. Billings 1865 [Eotomariidae]
  • Pleurotomaria galtensis, E. Billings 1865 [Gosseletinidae]
  • Pleurotomaria harpya, E. Billings 1865 [Raphistomatidae]
  • Pleurotomaria hortensia, E. Billings 1865 [Holopeidae]
  • Pleurotomaria hyale, E. Billings 1865 [Pleurotomariidae]
  • Pleurotomaria normani, E. Billings 1865 [Raphistomatidae]
  • Pleurotomaria numeria, E. Billings 1865 [Raphistomatidae]
  • Pleurotomaria postumia, E. Billings 1865 [Pleurotomariidae]
  • Pleurotomaria selecta, E. Billings 1865 [Lophospiridae]
  • Pleurotomaria sponsa, E. Billings 1865 [Eotomariidae]
  • Pleurotomaria vagrans, E. Billings 1865 [Raphistomatidae]
  • Pleurotomaria valeria, E. Billings 1865 [Euomphalidae]
  • Pleurotomaria viola, E. Billings 1865 [Gastropoda]
  • Pleurotomaria virgo, E. Billings 1865 [Pleurotomariidae]
  • Pleurotomaria virguncula, E. Billings 1865 [Eotomariidae]
  • Pleurotomaria vitruvia, E. Billings 1865 [Eotomariidae]
  • Remopleurides canadensis, E. Billings 1865 [Remopleurididae]
  • Ribeiria calcifera, E. Billings 1865 [Technophoridae]
  • Ribeiria longiscula, E. Billings 1865 [Ribeiriidae]
  • Ribeirina, E. Billings 1865 [Ribeiriidae]
  • Stenaster huxleyi, E. Billings 1865 [Urasterellidae]
  • Straparollina, E. Billings 1865 [Straparollinidae]
  • Straparollina pelagica, E. Billings 1865 [Straparollinidae]
  • Straparollus daphne, E. Billings 1865 [Euomphalidae]
  • Straparollus hippolyta, E. Billings 1865 [Euomphalidae]
  • Straparollus quebecensis, E. Billings 1865 [Ophiletidae]
  • Subulites daphne, E. Billings 1865 [Subulitidae]
  • Subulites parvulus, E. Billings 1865 [Subulitidae]
  • Subulites psyche, E. Billings 1865 [Subulitidae]
  • Trematis huronensis, E. Billings 1865 [Trematidae]