1971  Fallacites Ruzhentsev & Bogoslovskaya: 29.
     1978  Fallacites.-Ruzhentsev & Bogoslovskaia: 216.

Type species: Fallacites portentosus Ruzhentsev & Bogoslovskaya, 1971, p. 29 [OD].

A:   Conch form subdiscoidal; "calyx" stage of early whorls extremely broad; later stages completely involute, umbilicus
moderately narrow.
B:   Ornamentation consisting of fine dichotomizing lamellae; on intermediate stages one intraventral ridge.
G:   Ventral lobe with rather wide median saddle reaching about 2/3 of entire height of ventral lobe. Adventitious lobe very
wide.

[Only type species known].

[Ruzhentsev & Bogoslovskaia, 1971, p. 29]: Shell of young specimens initially cadiconic and subsequently spheroconic
with a narrow intraventral ridge; adult shell subdiscoconic. Whorls completely involute. Umbilicus narrow. Sculpture
consisting of fine lamellae which dichotomize early and form a ventral sinus with age. Constrictions only on the internal
mold. Ventral lobe broad (wl/hl= 1.60), with diverging sides.Sharply distinguished from all genera of the family by the
hypertrophied cadiconic stage and the broad ventral lobe; distinguished from many by the narrow umbilicus, the fine
dichotomizing lamellae, or the development of only one very narrow intraventral ridge.

[Ruzhentsev et Bogoslovskaya, 1978, p.216: Conch of yong specimens cadicone at first, then sphaericone, with
a thin intraventral keel.  Conch subdiscicone in adult state.  Whorls completely involute.  Umbilicus tight.  Sculpture
represented by thin lamellae, which dichotome early and later form a ventral sinus.  Constrictions are only visible on
the steinkern.  Ventral lobe wide (w/h = 1.60), with diverging sides.]