Leiosolenus (Labis) patagonicus (d’Orbigny, 1846 in 1834-1847d’Orbigny, A. 1834-1847. Mollusques. In: Bertrand CP (Ed.). Voyage dans l’Amerique Meridionale (Le Bresil, La Republique Orientale de L’Uruguay, La Republique Argentine, La Patagonie, La Republique du Chili, La Republique de Bolivia, La Republique du Perou), execute pendant les annees 1826, 1827, 1828, 1829, 1830, 1831, 1832 et 1833. Paris, Chez Ve. Levrault.) |
Smooth with thin calcareous incrustations |
Rounded |
Trigonal, flattened, extended beyond the posterior |
45 mm |
Santa Catarina, Brazil to Magellan region and Malvinas/Falkland Islands |
Leiosolenus (Labis) attenuatus (Deshayes, 1836Deshayes, G.P. & Milne-Edwards, H. 1836. Histoire Naturelle des Animaux sans Vertèbres, présentant les caractères généraux et particuliers de ces animaux, leur distribution, leurs classes, leurs familles, leurs genres, et la citation des principales espèces qui s’y rapportent, par J.B.P.A. de Lamarck. 2.ed. Tome septième. Histoire des Mollusques. Paris, J.B. Baillière. https://www.biodiversitylibrary.org/item/130259#page/7/mode/1up. https://www.biodiversitylibrary.org/item...
) |
Smooth with pustulose incrustations |
Rounded |
Narrowly pointed, not feather-like, extended beyond the posterior end in both valves |
111 mm |
Eastern Pacific, from California, USA to Peru |
Leiosolenus (Labis) peruvianus (d’Orbigny, 1846 in 1834-1847d’Orbigny, A. 1834-1847. Mollusques. In: Bertrand CP (Ed.). Voyage dans l’Amerique Meridionale (Le Bresil, La Republique Orientale de L’Uruguay, La Republique Argentine, La Patagonie, La Republique du Chili, La Republique de Bolivia, La Republique du Perou), execute pendant les annees 1826, 1827, 1828, 1829, 1830, 1831, 1832 et 1833. Paris, Chez Ve. Levrault.) |
Smooth with pustulose incrustations |
Broadly rounded |
Narrowly pointed, feather-like prolonged beyond the posterior end in both valves |
79 mm |
Lambayeque, Peru to Valparaíso, Chile |
Leiosolenus spatiosus (Carpenter, 1857Carpenter, P. 1857. Catalogue of the collection of Mazatlan shells in the British Museum: collected by Frederick Reigen. London.) |
Over anterior part and anterolateral valve, vertical irregular wrinkles |
Rounded |
without posterior projection |
63 mm |
San Felipe, Gulf of California, USA to Bocapán, Perú |
Leiosolenus (Diberus) bisulcatus (d’Orbigny, 1853) |
Divided in two sections by a sulcus; regular growth lines on the anterior disc, posterior area usually with a second sulcus and covered by calcareous incrustations |
Anterior end rounded and higher than the posterior |
Incrustation extended beyond the end and smoothly rounded |
41 mm |
Western Atlantic from North Carolina, USA to Vitoria, Brazil. Eastern Atlantic in St. Helen Island. |
Leiosolenus (Diberus) plumula (Hanley, 1843) |
Radial ornamentation extending from the umbos to the posterior margin of the valves |
Rounded |
Feather-like incrustations beyond the posterior end |
70 mm |
California, USA to Ecuador, reported as introduced in Philippines and Australia |
Leiosolenus (Myoforceps) aristatus (Dillwyn, 1817Dillwyn, L.W. 1817. A descriptive catalogue of recent shells: arranged according to the Linnaean Method; with Particular Attention to the Synonymy. London, John and Arthur Arch. v. 2. https://www.biodiversitylibrary.org/item/41315#page/9/mode/1up. https://www.biodiversitylibrary.org/item...
) |
Concentric growth lines covered by calcareous deposit. |
Truncate |
Pointed, Crossed |
52 mm |
Cosmopolitan, Eastern Pacific from California, USA to Ecuador; Western Atlantic from North Carolina to Brazil, Eastern Atlantic from Bay of Biscay to Southern Angola; Southern Mediterranean |