- Lambertiaster ficheuri (DALLON &LAMBERT, 1924)
- Lanthonia grantii (MORTENSEN, 1948)
- Leiopatagus aragonensis (COTTEAU, 1887)
- Leiopedina cf. molinai (SILLERO, 2002)
- Leptosalenia barredai (FORNER, 2014)
- Leptosalenia botanzi (FORNER & MORENO, 2016)
- Leptoalenia garciae (COTTEAU, 1861)
- Leptosalenia grasi (COTTEAU, 1861)
- Leptosalenia mexicana (SCHLÜTER, 1887)
- Leptosalenia missourensis (NICOLLEAU et VADET, 2019)
- Leptosalenia prestensis (DESOR, 1856)
- Leptosalenia texana (CREDNER, 1875)
- Leptosalenia tubillensis (NICOLLEAU et VADET, 2019)
- Leymeriaster aff. nucleus (DESOR, 1855)
- Leymeriaster nucleus (DESOR, 1855)
- Leymeriaster similis (D'ORBIGNY, 1854)
- Linthia aragonensis (COTTEAU, 1887)
- Linthia aff. canaliculata (COTTEAU, 1877)
- Linthia vilanovae (COTTEAU, 1889)
- Linthia winmilgtonensis (CLARK, 1915)
- Loriolia rosana (COOKE, 1949)
- Loriolia whitneyi (IKINS,1940)
- Loriolia wrightii (COTTEAU, 1857)
- Lovenia alabamensis (COOKE, 1959)
- Lovenia anteroalta (GREGORY, 1891)
- Lovenia bagheerae (IRWIN & ARCHBOLD, 1994)
- Lovenia carinata (COTTEAU, 1889)
- Lovenia elongata (GRAY, 1845)
- Lovenia lorioli (LAMBERT, 1902)
- Lovenia sulcata (HAIME, 1853)
- Lovenia woodsi (ETHERIDGE, 1875)
- Lytechinus variegatus plurituberculatus (KIER, 1963)