Dall, 1900
Biconvex to strangulate to oppositely multiplicate, smooth or more commonly multiplicate, punctae rather coarse; beak fairly short, subtruncate; foramen large, submesothyridid but almost hypothyridid; deltidial plates small; pedicle collar well developed, supported by median septum. Cardinal process forming transversely elongate, subrectangular boss that projects slightly behind posterior margin, buttressed by median septum; crura widely separate, short; loop relatively long, formed of 2 descending branches, anteriorly converging to join end of median septum; lophophore large, schizolophous.
Source: Moore, 1965.
The following species that belong to this genus occurs in this region:
Argyrotheca cistellula