• Leucosyrinx Dall, 1889
• Leucosyrinx (Sibogasyrinx) A. W. B. Powell, 1969 accepted as Sibogasyrinx A. W. B. Powell, 1969
• Leucosyrinx (Sibogasyrinx) archibenthalis A. W. B. Powell, 1969 accepted as Leucosyrinx archibenthalis A. W. B. Powell, 1969
• Leucosyrinx (Sibogasyrinx) pyramidalis (Schepman, 1913) accepted as Sibogasyrinx pyramidalis (Schepman, 1913)
• Leucosyrinx aequatorialis Thiele, 1925
• Leucosyrinx allisoni (Rehder & Ladd, 1973)
• Leucosyrinx alta (G. F. Harris, 1897) † accepted as Parasyrinx alta (G. F. Harris, 1897) †
• Leucosyrinx alta transenna Suter, 1917 † accepted as Cryptomella transenna (Suter, 1917) †
• Leucosyrinx amycus Dall, 1919 accepted as Aforia goodei (Dall, 1890)
• Leucosyrinx angusteplicata (Strebel, 1905) accepted as Antarctospira angusteplicata (Strebel, 1905)
• Leucosyrinx anteridion (Watson, 1881)
• Leucosyrinx arcana (E. A. Smith, 1899)
• Leucosyrinx archibenthalis A. W. B. Powell, 1969
• Leucosyrinx argentina N. Sánchez & Pastorino, 2024
• Leucosyrinx badenpowelli Dell, 1990 accepted as Antarctospira badenpowelli (Dell, 1990)
• Leucosyrinx barashi F. Nordsieck, 1982 (uncertain > taxon inquirendum)
• Leucosyrinx bernardeti Kantor, Fedosov & Puillandre, 2025
• Leucosyrinx boiteuxi Kantor, Fedosov & Puillandre, 2025
• Leucosyrinx bolbodes (R. B. Watson, 1881)
• Leucosyrinx bolognai (Bozzetti, 2001)
• Leucosyrinx bourgeoisae Kantor, Fedosov & Puillandre, 2025
• Leucosyrinx breviplicata (E. A. Smith, 1899)
• Leucosyrinx buricana Olsson, 1942 †
• Leucosyrinx caecilia Thiele, 1925
• Leucosyrinx canyonensis (Dell, 1956)
• Leucosyrinx chloris Olsson, 1922 †
• Leucosyrinx circinata (Dall, 1873) accepted as Aforia circinata (Dall, 1873)
• Leucosyrinx claviforma (Kosuge, 1992)
• Leucosyrinx climoi P. A. Maxwell, 1988 †
• Leucosyrinx clionella Dall, 1908 accepted as Burchia clionella (Dall, 1908)
• Leucosyrinx crispulata (E. von Martens, 1901) accepted as Cochlespira crispulata (E. von Martens, 1901)
• Leucosyrinx crispulata var. denticulosa E. von Martens, 1904 accepted as Cochlespira crispulata (E. von Martens, 1901)
• Leucosyrinx curviplicata (Sysoev, 1996)
• Leucosyrinx cuvierensis Mestayer, 1919 accepted as Terefundus cuvierensis (Mestayer, 1919)
• Leucosyrinx dalli (K. J. Bush, 1893) accepted as Corinnaeturris leucomata (Dall, 1881)
• Leucosyrinx derzellei Kantor, Fedosov & Puillandre, 2025
• Leucosyrinx diomedea (A. W. B. Powell, 1969)
• Leucosyrinx elsa Thiele, 1925 (uncertain > taxon inquirendum)
• Leucosyrinx engonata (Conrad, 1862) †
• Leucosyrinx equatorialis (Dall, 1919) (uncertain > taxon inquirendum)
• Leucosyrinx eremita (Murdoch & Suter, 1906) accepted as Antimelatoma eremita (Murdoch & Suter, 1906)
• Leucosyrinx erica Thiele, 1925 accepted as Comispira erica (Thiele, 1925)
• Leucosyrinx erna Thiele, 1925
• Leucosyrinx erosina Dall, 1908 accepted as Borsonella erosina (Dall, 1908)
• Leucosyrinx esilda (Dall, 1908) (uncertain > taxon inquirendum)
• Leucosyrinx eurina (E. A. Smith, 1899)
• Leucosyrinx exulans (Dall, 1890)
• Leucosyrinx falklandica A. W. B. Powell, 1951 accepted as Antarctospira falklandica (A. W. B. Powell, 1951)
• Leucosyrinx farhatorum Kantor, Fedosov & Puillandre, 2025
• Leucosyrinx fijiensis Ladd, 1982 †
• Leucosyrinx floraecharlottae Kantor, Fedosov & Puillandre, 2025
• Leucosyrinx gaelae Kantor, Fedosov & Puillandre, 2025
• Leucosyrinx galapagana Dall, 1919 accepted as Exilia cortezi (Dall, 1908)
• Leucosyrinx granuloplicata (Kosuge, 1992)
• Leucosyrinx halicyria (Melvill, 1904)
• Leucosyrinx hemimeres (R. B. Watson, 1881)
• Leucosyrinx herilda (Dall, 1908)
• Leucosyrinx herosae Kantor, Fedosov & Puillandre, 2025
• Leucosyrinx iwaensis MacNeil, 1961 †
• Leucosyrinx janetae Bartsch, 1934 accepted as Leucosyrinx verrillii (Dall, 1881)
• Leucosyrinx jeedara Kantor, Hallan & Criscione, 2022
• Leucosyrinx julia Thiele, 1925
• Leucosyrinx kantori J. H. McLean, 1995 accepted as Rhodopetoma amycus (Dall, 1919)
• Leucosyrinx kincaidi Dall, 1919 accepted as Aforia kincaidi (Dall, 1919)
• Leucosyrinx kirai (A. W. B. Powell, 1969)
• Leucosyrinx lancea Y.-C. Lee, 2001 accepted as Sibogasyrinx lancea (Y.-C. Lee, 2001)
• Leucosyrinx legalli Kantor, Fedosov & Puillandre, 2025
• Leucosyrinx lemarcisi Kantor, Fedosov & Puillandre, 2025
• Leucosyrinx lozoueti Kantor, Fedosov & Puillandre, 2025
• Leucosyrinx luzonica (A. W. B. Powell, 1969)
• Leucosyrinx macroberstoni A. W. B. Powell, 1958 accepted as Leucosyrinx macrobertsoni A. W. B. Powell, 1958
• Leucosyrinx macrobertsoni A. W. B. Powell, 1958
• Leucosyrinx madagascariensis Ardovini, 2022
• Leucosyrinx maestratii Kantor, Fedosov & Puillandre, 2025
• Leucosyrinx mai B.-Q. Li & X.-Z. Li, 2008 accepted as Comispira mai (B.-Q. Li & X.-Z. Li, 2008)
• Leucosyrinx margaritae (E. A. Smith, 1904)
• Leucosyrinx mawsoni A. W. B. Powell, 1958 accepted as Antarctospira mawsoni (A. W. B. Powell, 1958)
• Leucosyrinx melvilli (Schepman, 1913)
• Leucosyrinx modicae Kantor, Fedosov & Puillandre, 2025
• Leucosyrinx nodulocordata Kantor, Fedosov & Puillandre, 2025
• Leucosyrinx oliverioi Kantor, Fedosov & Puillandre, 2025
• Leucosyrinx pacifica Dall, 1908 accepted as Belomitra pacifica (Dall, 1908)
• Leucosyrinx pagodaeformis (Schepman, 1913)
• Leucosyrinx palawanica (A. W. B. Powell, 1969)
• Leucosyrinx paragenota A. W. B. Powell, 1951 accepted as Bela angusteplicata Strebel, 1905 accepted as Antarctospira angusteplicata (Strebel, 1905)
• Leucosyrinx paratenoceras A. W. B. Powell, 1951 accepted as Typhlodaphne paratenoceras (A. W. B. Powell, 1951)
• Leucosyrinx paupera (R. B. Watson, 1881)
• Leucosyrinx pelagia (Dall, 1881)
• Leucosyrinx persimilis (Dall, 1890) accepted as Aforia persimilis (Dall, 1890)
• Leucosyrinx persimilis var. blanca Dall, 1919 accepted as Aforia persimilis blanca (Dall, 1919)
• Leucosyrinx pikei (Dell, 1963) accepted as Sibogasyrinx pikei (Dell, 1963)
• Leucosyrinx placaisae Kantor, Fedosov & Puillandre, 2025
• Leucosyrinx plebeia (R. B. Watson, 1881)
• Leucosyrinx powelli (Rehder & Ladd, 1973)
• Leucosyrinx queenslandica A. W. B. Powell, 1969 accepted as Zemacies queenslandica (A. W. B. Powell, 1969)
• Leucosyrinx quinetae Kantor, Fedosov & Puillandre, 2025
• Leucosyrinx rabbidgei Ladd, 1982 †
• Leucosyrinx rattiae Kantor, Fedosov & Puillandre, 2025
• Leucosyrinx recta Hedley, 1903 accepted as Austrocarina recta (Hedley, 1903)
• Leucosyrinx ringevali Kantor, Fedosov & Puillandre, 2025