• Gymnobela A. E. Verrill, 1884
• Gymnobela (Bathybela) Kobelt, 1905 accepted as Bathybela Kobelt, 1905
• Gymnobela (Bathybela) africana Sysoev, 1996 accepted as Spergo africana (Sysoev, 1996)
• Gymnobela (Bathybela) oculifera Kantor & Sysoev, 1986 accepted as Spergo oculifera (Kantor & Sysoev, 1986)
• Gymnobela abyssorum (Locard, 1897)
• Gymnobela adenica Sysoev, 1996
• Gymnobela adenicus [sic] accepted as Gymnobela adenica Sysoev, 1996
• Gymnobela africana Sysoev, 1996 accepted as Spergo africana (Sysoev, 1996)
• Gymnobela agassizi [sic] accepted as Gymnobela agassizii (A. E. Verrill & S. Smith, 1880)
• Gymnobela agassizii (A. E. Verrill & S. Smith, 1880) (accepted > unreplaced junior homonym)
• Gymnobela altispira Sysoev & D. L. Ivanov, 1985
• Gymnobela angulosa Sysoev, 1988
• Gymnobela aquilarum (R. B. Watson, 1882)
• Gymnobela atypha (K. J. Bush, 1893)
• Gymnobela augusta Thiele, 1925
• Gymnobela bairdii (A. E. Verrill & S. Smith, 1884)
• Gymnobela baruna Sysoev, 1997 accepted as Pagodibela baruna (Sysoev, 1997)
• Gymnobela blakeana (Dall, 1881) accepted as Mioawateria blakeana (Dall, 1881)
• Gymnobela blakeana agria (Dall, 1889)
• Gymnobela brachis (Dall, 1919) accepted as Mioawateria brachis (Dall, 1919)
• Gymnobela brachypleura Sysoev, 1990
• Gymnobela brevis (Bellardi, 1847) †
• Gymnobela brevis A. E. Verrill, 1885 accepted as Gymnobela aquilarum (R. B. Watson, 1882)
• Gymnobela brunnistriata Sysoev, 1990
• Gymnobela bululi Stahlschmidt, Poppe & Tagaro, 2018 accepted as Spergo bululi (Stahlschmidt, Poppe & Tagaro, 2018)
• Gymnobela camerunensis Thiele, 1925 accepted as Theta camerunensis (Thiele, 1925)
• Gymnobela carinaria (A. W. B. Powell, 1935) †
• Gymnobela ceramensis (Schepman, 1913)
• Gymnobela chariessa (R. B. Watson, 1881) accepted as Theta chariessa (R. B. Watson, 1881)
• Gymnobela chistikovi Sysoev & D. L. Ivanov, 1985
• Gymnobela chrysopelex (Barnard, 1963) accepted as Theta chrysopelex (Barnard, 1963)
• Gymnobela chyta (R. B. Watson, 1881)
• Gymnobela clara Thiele, 1925 accepted as Mioawateria clara (Thiele, 1925)
• Gymnobela crassilirata Sysoev, 1990
• Gymnobela curta A. E. Verrill, 1884 accepted as Gymnobela aquilarum (R. B. Watson, 1882)
• Gymnobela curta var. subangulata A. E. Verrill, 1884 accepted as Gymnobela aquilarum (R. B. Watson, 1882)
• Gymnobela cyrillei Lozouet, 2017 †
• Gymnobela dagama (Barnard, 1963)
• Gymnobela daphnelloides (Dall, 1895)
• Gymnobela dautzenbergi (Knudsen, 1952)
• Gymnobela dubia (Schepman, 1913)
• Gymnobela edgariana (Dall, 1889)
• Gymnobela emertoni (A. E. Verrill & S. Smith, 1884)
• Gymnobela engonia A. E. Verrill, 1884
• Gymnobela eridmata Sysoev & Bouchet, 2001
• Gymnobela erronea Thiele, 1925 accepted as Mioawateria erronea (Thiele, 1925)
• Gymnobela eugenia Sysoev & D. L. Ivanov, 1985
• Gymnobela extensa (Dall, 1881) accepted as Mioawateria extensa (Dall, 1881)
• Gymnobela felderi E. F. García, 2005
• Gymnobela filifera (Dall, 1881)
• Gymnobela fredericqae E. F. García, 2005
• Gymnobela frielei (A. E. Verrill, 1885)
• Gymnobela fulvotincta (Dautzenberg & H. Fischer, 1896) accepted as Austrobela fulvotincta (Dautzenberg & H. Fischer, 1896)
• Gymnobela galerita (R. A. Philippi, 1844) †
• Gymnobela glaucocreas (Barnard, 1963)
• Gymnobela gracilis Sysoev, 1990
• Gymnobela granulisculpturata Sysoev, 1990
• Gymnobela grundifera Dall, 1927 accepted as Daphnella grundifera (Dall, 1927)
• Gymnobela guineensis Thiele, 1925
• Gymnobela gypsata (R. B. Watson, 1881) accepted as Austrobela gypsata (R. B. Watson, 1881)
• Gymnobela homeotata [sic] accepted as Gymnobela homoeotata (R. B. Watson, 1886) accepted as Theta homoeotata (R. B. Watson, 1886)
• Gymnobela homoeotata (R. B. Watson, 1886) accepted as Theta homoeotata (R. B. Watson, 1886)
• Gymnobela illicita Dall, 1927
• Gymnobela imitator Dall, 1927 accepted as Mioawateria imitator (Dall, 1927)
• Gymnobela ioessa Sysoev, 1997
• Gymnobela isogonia (Dall, 1908) accepted as Mioawateria isogonia (Dall, 1908)
• Gymnobela judithae A. H. Clarke, 1989 accepted as Gymnobela extensa (Dall, 1881) accepted as Mioawateria extensa (Dall, 1881)
• Gymnobela lamyi (Dautzenberg, 1925)
• Gymnobela lanceata Dall, 1927
• Gymnobela laticaudata Sysoev, 1990
• Gymnobela latistriata Kantor & Sysoev, 1986 accepted as Theta latistriata (Kantor & Sysoev, 1986)
• Gymnobela leptoglypta (Dautzenberg & H. Fischer, 1896)
• Gymnobela lineola (Dall, 1927) accepted as Pleurotomella lineola Dall, 1927
• Gymnobela lozanoi (Vera-Peláez, 2002) †
• Gymnobela lyroniclea [sic] accepted as Gymnobela lyronuclea (A. H. Clarke, 1959) accepted as Theta lyronuclea (A. H. Clarke, 1959)
• Gymnobela lyronuclea (A. H. Clarke, 1959) accepted as Theta lyronuclea (A. H. Clarke, 1959)
• Gymnobela malmii (Dall, 1889) accepted as Mioawateria malmii (Dall, 1889)
• Gymnobela micraulax Sysoev, 1997 accepted as Austrobela micraulax (Sysoev, 1997)
• Gymnobela midpacifica Stahlschmidt & Chino, 2012
• Gymnobela mitrodeta Sysoev, 1997
• Gymnobela multilirata Ortega & Gofas, 2019
• Gymnobela muricata Sysoev, 1997
• Gymnobela nivea Sysoev, 1990
• Gymnobela nudator (Locard, 1897) accepted as Bathybela nudator (Locard, 1897)
• Gymnobela oculifera Kantor & Sysoev, 1986 accepted as Spergo oculifera (Kantor & Sysoev, 1986)
• Gymnobela ovum Vera-Peláez, 2002 †
• Gymnobela pelagia Vera-Peláez, 2002 † accepted as Gymnobela galerita (R. A. Philippi, 1844) †
• Gymnobela petiti E. F. García, 2005
• Gymnobela phyxanor (R. B. Watson, 1886)
• Gymnobela procera Sysoev & Bouchet, 2001 accepted as Austrobela procera (Sysoev & Bouchet, 2001)
• Gymnobela pulchra (Schepman, 1913)
• Gymnobela pusula (Laws, 1947) † accepted as Acanthodaphne pusula (Laws, 1947) †
• Gymnobela pyrrhogramma (Dautzenberg & H. Fischer, 1896) accepted as Austrobela pyrrhogramma (Dautzenberg & H. Fischer, 1896)
• Gymnobela rhomboidea Thiele, 1925 accepted as Mioawateria rhomboidea (Thiele, 1925)
• Gymnobela rotundata Sysoev, 1990
• Gymnobela salinasi (Calcara, 1841) †
• Gymnobela santorsolae Tabanelli, 2018 †
• Gymnobela sibogae (Schepman, 1913) accepted as Spergo sibogae Schepman, 1913
• Gymnobela sphaera (Vera-Peláez, 2002) †
• Gymnobela subaraneosa (Dautzenberg & H. Fischer, 1896)