Bulletin - United States National Museum - Smithsonian Institution

SOUTH AFRICAN MARINE MOLLUSKS. 85
ribs lend the whorls a cloth-like texture. Suture well impressed.
Periphery of the last whorl feebly angulated. Base short, moderately
rounded, marked by the continuation of the axial ribs and spiral
lirations, the latter of varying strength. Aperture irregularly oval;
posterior angle obtuse; outer lip moderately thin, showing the exter-
nal sculpture within; inner lip very oblique, almost straight, reflected
over and appressed to the body whorl, except at the extreme anterior
tip, which is free. The columella is provided with a feeble fold at its
insertion. Parietal wall glazed with a thin callus.
The type, Cat. No. 249715, U.S.N.M., comes from Port Alfred
(Coll. No. 987). It has nine postnuclear whorls, and measures:
Length, 15 mm.; diameter, 4.7 mm.
Two additional specimens of this species come from Port Alfred.
They are listed as Cat. No. 186842, U.S.N.M. (Coll. No. 209), and
Cat. No. 249702 /U.S.N.M., (Coll. No. 974).
TURBONILLA (MORMULA) DECORA Smith.
Cat. No. 186849, U.S.N.M., contains a specimen of this species from
Port Alfred (Coll. No. 216). Another specimen from the same locality
is listed as Cat. No. 250377, U.S.N.M. (CoU. 1250).
TURBONILLA (PERISTICHIA) BATHYRAPHE Sowerby.
Cat. No. 186848, U.S.N.M., contains one specimen of this species
from Port Alfred (Coll. No. 215).
Genus ODOSTOMIA Fleming.
ODOSTOMIA (ODOSTOMELLA) FARICA, new species.
Plate 18, fig. 4.
Shell small, elongate-ovate, milk white, with three narrow chestnut
bands, the first of which encircles the posterior fourth of the space
between the sutures ; the second is somewhat anterior to the periph-
ery, while the third is about one-half of the distance of the space
between the anterior extremity of the base and the periphery, poste-
rior to the anterior extremity. Nuclear whorls small, polished,
deeply immersed in the first of the succeeding turns, above which the
tilted edge of the last volution only projects. Postnuclear whorls
well rounded, narrowly shouldered at the summit, marked by slender,
almost vertical, axial riblets, which are about two-thirds as wide as
the spaces that separate them. Of these riblets, 22 occur upon the
second, 24 upon the third, and 26 upon the penultimate turn. Suture
strongly constricted. Periphery of the last whorl well rounded.
Base moderately well rounded, marked by the feeble continuations
of the axial ribs, which extend to the umbilical chink. Aperture oval;
posterior angle obtuse; outer lip thin, showing the external sculpture
within; inner lip slightly curved, reflected, and appressed to the
80737°—Bull. 91—15 7