Genus Lasea J. E. Gray, 1842

(3-4-4-0-17-2-0-18-0-0-0-0-0)
[=Lasaea W. E. Leach, 1827]
Ref. Abbott, 1974 p 468
Vokes, 1980 p 111

oblonga P. P. Carpenter, 1857
(3-4-4-0-17-2-0-18-0-1-0-0-0)
[=Orobitella oblonga (P. P. Carpenter, 1857)]
Ref. Bernard, 1983 p 32
[see under Family: MONTACUTIDAE; Subfamily: OROBITELLINAE]

trigonalis P. P. Carpenter, 1857
(3-4-4-0-17-2-0-18-0-2-0-0-0)
[=Isorobitella trigonalis (P. P. Carpenter, 1857)]
Ref. Bernard, 1983 p 32
[see under Family: MONTACUTIDAE; Subfamily: OROBITELLINAE]