Arnould Locard

Étienne Alexandre Arnould Locard (8 December 1841 – 28 October 1904), usually known as Arnould Locard, was a French naturalist, malacologist and geologist. His name can be abbreviated/spelled as Arnoul at plates, for example Crosse (1890).

Biography Born in Lyon, he was the son of engineer Eugene Locard. He was a student at École Centrale Paris. He is considered one of the more prolific malacologists of the so-called "new school" with Jules René Bourguignat (1828–1892) as his master.

Locard is credited with describing hundreds of zoological species, in particular freshwater mussels and gastropods from the genus Helix. During his career he did very little collecting of specimens himself, preferring to work in an institution/museum environment. In 1895, he revised the conchological collection of Jacques Philippe Raymond Draparnaud (1772–1804).

Among his many publications are articles on the geology of the Lyon region, and treatises on fossil and living mollusks. He was the author of detailed biographies of naturalists, such as Martial Étienne Mulsant (1797–1880) and Gaspard Michaud (1795–1880), and also wrote an article on Lyonnaise malacologists, titled Malacologistes lyonnais (1879). In 1877 he published Malacologie Lyonnaise; ou Description des mollusques terrestres & aquatiques des environs de Lyons (1877), based on Ange Paulin Terver's collection of terrestrial and aquatic mollusks found in the vicinity of Lyon. In 1893 Philippe Thomas published the palaeontology results of the Tunisian Scientific Exploration Mission (1885–86) in six instalments plus an atlas, giving the work of Victor-Auguste Gauthier (sea urchins), Arnould Locard (Mollusca), Auguste Péron (Brachiopods, Bryozoa and Pentacrinitess) and Henri Émile Sauvage (fish).

Locard was a member of the Académie des sciences, belles-lettres et arts de Lyon (1879–1904), the Société française de malacologie, the Société géologique de France and the Société linnéenne de Lyon 1881–1904, president- 1882). He was a founding member of the Association lyonnaise des amis des sciences naturelles.

Principal works 1881-1890. Contributions à la Faune malacologique française. Ann. Soc. linn. Lyon et Ann. Soc. Hist. nat. Agric. Arts utiles Lyon. regroupant 15 mémoires. 1884-1887. Matériaux pour servir à l'histoire de la Malacologie française. Bull. Soc. mal. Fr. Paris. regroupant 7 mémoires. 1884. Histoire des Mollusques dans l'Antiquite. 1888-1898. Notices conchyliologiques. L'Echange, Revue linnéenne, Lyon. rassemblant 50 mémoires.

Taxa described Taxa described by Arnould Locard include (sorted chronologically, gastropods and bivalves):

1882 Cernuella aginnica (Locard, 1882) Helicella bolenensis (Locard, 1882) Chilostoma crombezi (Locard, 1882) Spiralix rayi (Locard, 1882) Urticicola isaricus (Locard, 1882)

1886 Alvania simulans Locard, 1886 Mitrella lanceolata (Locard, 1886) Nassarius ovoideus (Locard, 1886) Odostomia megerlei (Locard, 1886) Setia amabilis (Locard, 1886)

1889 Mytilaster marioni (Locard, 1889)

1891 Haedropleura forbesi Locard, 1891 Pleurotomella reconditum (Locard, 1891) Raphitoma servaini (Locard, 1891)

1892 Bela decussata (Locard, 1892) Bela oceanica (Locard, 1892) Bela zonata (Locard, 1892) Cerithiopsis scalaris (Locard, 1892) Emarginula tenera Locard, 1892 Ondina crystallina Locard, 1892 Peringiella elegans (Locard, 1892) Pollia scabra Locard, 1892 Retusa candidula (Locard, 1892)

1893 Dreissena anatolica Locard, 1893 Dreissena gallandi Locard, 1893 Dreissena siouffi Locard, 1893

1894 Oxychilus colliourensis (Locard, 1894)

1896 Calliostoma cleopatra (Locard, 1896) Kryptos koehleri (Locard, 1896) Mesalia flammifera (Locard, 1896)

1897 Abyssochrysos eburneus (Locard, 1897) Amauropsis brassiculina (Locard, 1897) Bathybela nudator (Locard, 1897) Bathybela tenelluna (Locard, 1897) Bulla mabillei Locard, 1897 Cadulus artatus Locard, 1897 Cadulus monterosatoi Locard, 1897 Clathurella salarium P. Fischer in Locard, 1897 Coralliophila monterosatoi (Locard, 1897) Cylichnium africanum (Locard, 1897) Drilliola Locard, 1897 Eulimella nana Locard, 1897 Euthriostoma saharicum (Locard, 1897) Favartia bojadorensis (Locard, 1897) Fissidentalium semivestitum (Locard, 1897) Fusinus sectus (Locard, 1897) Gadila senegalensis (Locard, 1897) Gadila strangulata (Locard, 1897) Gibberula abyssicola Locard, 1897 Granulina minusculina (Locard, 1897) Gregorioiscala pachya (Locard, 1897) Gymnobela abyssorum (Locard, 1897) Hexaplex saharicus (Locard, 1897) Inopinodon azoricus (Locard, 1897) Latiromitra Locard, 1897 Latirus rugosissimus (Locard, 1897) Marginella marocana Locard, 1897 Mitrella nitidulina (Locard, 1897) Modulus turbinoides (Locard, 1897) Oenopota graphica (Locard, 1897) Oliva flammulata dolicha Locard, 1897 Pagodula cossmanni (Locard, 1897) Pedicularia decurvata Locard, 1897 Periapta polygyrella (P. Fischer in Locard, 1897) Relichna simplex (Locard, 1897) Ringicula pirulina Locard, 1897 Spirotropis monterosatoi (Locard, 1897) Stylopsis marioni Locard, 1897 Timbellus leucas (Locard, 1897) Turbonilla atlantica (Locard, 1897) Turbonilla pauperata Locard, 1897 Volvarina cernita (Locard, 1897)

1898 Bathysciadium costulatum (Locard, 1898) Calliostoma milneedwardsi (Locard, 1898) Calliostoma obesulum (Locard, 1898) Capulus simplex Locard, 1898 Cardiomya striolata (Locard, 1898) Cetoconcha transversa (Locard, 1898) Cuspidaria semirostrata Locard, 1898 Emarginula elata Locard, 1898 Emarginula intervecta Locard, 1898 Gibbula corallioides Locard, 1898 Halicardia carinifera (Locard, 1898) Hyalopecten parvulinus (Locard, 1898) Megaxinus appendiculatus (Locard, 1898) Nuculana vestita (Locard, 1898) Panacca africana (Locard, 1898) Policordia densicostata (Locard, 1898) Rhinoclama nitens (Locard, 1898) Solariella cingulima (Locard, 1898) Solariella effossima Locard, 1898 Solariella mogadorensis (Locard, 1898) Solariella rudecta (Locard, 1898) Talochlamys abscondita (P. Fischer in Locard, 1898) Turcicula miranda (Locard, 1898) Vertambitus triangularis (Locard, 1898) Verticordia triangularis Locard, 1898

1899 Planktomya prima (Locard, 1899)

1900 Gibberula turgidula (Locard & Caziot, 1900) Mangelia difficilis (Locard & Caziot, 1900) Philbertia atropurpurea (Locard & Caziot, 1900) Raphitoma atropurpurea (Locard & Caziot, 1900) Raphitoma cylindracea (Locard & Caziot, 1900)

1902 Bythinella padiraci Locard, 1902

Named in honor Taxa named in honor of Arnould Locard include: Aphanitoma locardi Bavay, 1906 Panacca locardi (Dall, 1903)