Longchaeus
Two views of a shell of Longchaeus suturalis
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Heterobranchia
Subcohort:	Panpulmonata
Superfamily:	Pyramidelloidea
Family:	Pyramidellidae
Genus:	Longchaeus Mörch, 1875
Type species
Pyramidella punctata Schubert & Wagner, 1829
Synonyms[1]
† Callolongchaeus Dall, 1903 Lonchaeus (misspelling) Obeliscus (Longchaeus) Mörch, 1875 (original rank) Pharcidella Dall, 1889 Pyramidella (Longchaeus) Mörch, 1875 Pyramidella (Pharcidella) Dall, 1889 Pyramidella (Voluspa) Dall & Bartsch, 1904 Voluspa (gastropod) Dall & Bartsch, 1904 Wingenella Laseron, 1959

Longchaeus is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.^[1]

Species within the genus Longchaeus include:^[1]

• Longchaeus achates (A. Gould, 1853)
• Longchaeus acus (Gmelin, 1791)
• Longchaeus adamsi (Carpenter, 1864)
• Longchaeus auricoma (Dall, 1889)
• Longchaeus bicolor Menke, 1854
• † Longchaeus canaliculatus (Gabb, 1873)
• Longchaeus candidus (Mörch, 1875)
• Longchaeus conicus (C. B. Adams, 1852)
• Longchaeus eburneus (Laseron, 1959)
• Longchaeus folinii (Dall, 1889)
• Longchaeus inopinatus (Schander, 1994)
• Longchaeus insularum (Pilsbry, 1922)
• † Longchaeus jamaicensis (Dall, 1896)
• Longchaeus maculosus (Lamarck, 1822)
• Longchaeus mazatlanicus (Dall & Bartsch, 1909)
• † Longchaeus menadensis (Schepman, 1907)
• † Longchaeus obtusatus (O. Semper, 1861)
• Longchaeus obtusus (Laseron, 1959)
• † Longchaeus olssoni (Maury, 1917)
• † Longchaeus plicosus (Bronn, 1838)
• Longchaeus suturalis (H. C. Lea, 1843)
• Longchaeus turritus (A. Adams, 1854)
• † Longchaeus unisulcatus (Dujardin, 1837)

Species brought into synonymy

• Longchaeus calesi Bartsch, 1955: synonym of Longchaeus suturalis (H. C. Lea, 1843)
• Longchaeus canaliculatus (Sowerby II, 1874): synonym of Longchaeus insularum (Pilsbry, 1922)
• † Longchaeus marionae Bartsch, 1955: synonym of Longchaeus suturalis (H. C. Lea, 1843)
• Longchaeus pricena (Laseron, 1959): synonym of Longchaeus obtusus (Laseron, 1959)
• Longchaeus punctatus (Schubert & J. A. Wagner, 1829): synonym of Longchaeus acus (Gmelin, 1791)
• Longchaeus schanderi (van Aartsen, Gittenberger & Goud, 1998): synonym of Pyramidella inopinata (Schander, 1994)
• Longchaeus sulcatus (A. Adams, 1854): synonym of Longchaeus maculosus (Lamarck, 1822)

• Dautzenberg, P. (1923). Liste préliminaire des mollusques marins de Madagascar et description de deux espèces nouvelles. Journal de Conchyliologie 68: 21-74
• Laseron C.F. (1959). Family Pyramidellidae (Mollusca) from Northern Australia. Australian Journal of Marine and Freshwater Research. 10(2): 177-267
• Robba E. (2013) Tertiary and Quaternary fossil pyramidelloidean gastropods of Indonesia. Scripta Geologica 144: 1-191
• Landau B.M. & LaFollette P.I. (2015). The Pyramidellidae (Mollusca: Gastropoda) from the Miocene Cantaure Formation of Venezuela. Cainozoic Research. 15(1-2): 13-54

• World Register of Marine Species
• Miocene Gastropods and Biostratigraphy of the Kern River Area, California; United States Geological Survey Professional Paper 642 This article incorporates text from this source, which is in the public domain.
• Mörch O.A.L. (1875). Synopsis molluscorum marinorum Indiarum occidentalium imprimis insularum danicarum. Malakozoologische Blätter, 22: 142-184.
• Dall W.H. 1889. Reports on the results of dredging, under the supervision of Alexander Agassiz, in the Gulf of Mexico (1877-78) and in the Caribbean Sea (1879-80), by the U.S. Coast Survey Steamer "Blake", Lieut.-Commander C.D. Sigsbee, U.S.N., and Commander J.R. Bartlett, U.S.N., commanding. XXIX. Report on the Mollusca. Part 2, Gastropoda and Scaphopoda. Bulletin of the Museum of Comparative Zoölogy at Harvard College, 18: 1-492, pls. 10-40://www.biodiversitylibrary.org/item/25505