Subgenus (Barbatiella) F. P. Jousseaume in E. Lamy, 1917

(3-7-3-0-1-3-1-11-1-0-0-0-0)
Ref. Bernard, 1983 p 16
Syn. (Paranoetia) J. Thiele, 1934
Ref. Vaught, 1989 p 115
[see also as Genus]

delgada (H. N. Lowe, 1935)
(3-7-3-0-1-3-1-11-1-1-0-0-0)
Syn. Arca (Arca) delgada H. N. Lowe, 1935
Ref. Bernard, 1983 p 16