Subgenus (Linucula) Marwick, 1931

(3-6-1-0-2-3-0-27-6-0-0-0-0)
Ref. Bernard, 1983 p 10

crenulata A. Adams, 1856
(3-6-1-0-2-3-0-27-6-1-0-0-0)
Syn. ? Nucula (Nucula) culebrensis E. A. Smith, 1885
Ref. Bernard, 1983 p 10

fernandensis M. M. Villarroel, 1971
(3-6-1-0-2-3-0-27-6-2-0-0-0)
Syn. Nucula (Nucula) fernandensis M. M. Villarroel, 1971
Ref. Bernard, 1983 p 10

pisum G. B. Sowerby, 1833
(3-6-1-0-2-3-0-27-6-3-0-0-0)
Syn. Nucula (Nucula) pisum G. B. Sowerby, 1833, not T. Brown, 1845;
Nucula (Nucula) semiornata A. Orbigny, 1846
Ref. Bernard, 1983 p 10