Subgenus (Costelloleda) L. G. Hertlein & A. M. Strong, 1940

(3-6-1-0-3-7-2-66-4-0-0-0-0)
Ref. Bernard, 1983 p 12
Keen, 1971 p 28
[see also as Genus]

costellata (G. B. Sowerby, 1833)
(3-6-1-0-3-7-2-66-4-1-0-0-0)
Ref. Keen, 1971 p 28 bw
Syn. Nucula (Nucula) costellata G. B. Sowerby, 1833
Ref. Bernard, 1983 p 12

marella L. G. Hertlein, G. D. Hanna & A. M. Strong, 1940
(3-6-1-0-3-7-2-66-4-2-0-0-0)
Syn. Leda (Leda) cestroda authors, not W. H. Dall, 1889
Ref. Bernard, 1983 p 12
Syn. Leda (Adrana) cestrota W. H. Dall, 1890 of authors
Ref. Keen, 1971 p 28 bw