Bulletin - United States National Museum - Smithsonian Institution

SOUTH AFRICAN MARINE MOLLUSKS. 57
The type, Cat. No. 249744, U.S.N.M., comes from Port Alfred
(Coll. No. 1016). It has five postnuclear whorls, and measures:
Length, 6.1 mm.; diameter, 3 mm.
COLUMBELLA (SEMINELLA), species?
Cat. No. 250474, U.S.N.M., contains a young specimen of an ap-
parently undescribed Seminella from Port Alfred (Coll. No. 1347).
COLUMBELLA (ANACHIS) BECKERI Sowerby.
Cat. No. 182029, U.S.N.M., one specimen from Port Alfred (Coll.
No. 565).
COLUMBELLA (ANACHIS) ALGOENSIS Sowerby.
Cat. No. 186696, U.S.N.M., one specimen from Port Alfred (Coll.
No. 55).
COLUMBELLA (ANACHIS) KRAUSSI Sowerby.
Columbella kraussi Sowerby, Proc. Zool. Soc, p. 53, 1844 = Columbella (Anachis)
fulminea Gould, Proc. Boat. Soc. Nat. Hist., vol. 7, p. 334, 1860.
Cat. No. 130, U.S.N.M., three specimens Gould's cotypes collected
by William Stimpson on the North Pacific Exploring Expedition at
the Cape of Good Hope; and Cat. No. 186698, U.S.N.M., six specimens
from Port Alfred (Coll. No. 57).
COLUMBELLA (ANACHIS) IO, new species.
Plate 37, fig. 4.
Shell elongate-conic, light brown, variegated with flesh color.
Nuclear whorls smooth, well rounded. Postnuclear whorls well
rounded, feebly shouldered at the summit, the first three marked by
a few ill-defined, broad, decidedly retractive axial ribs, the rest
smooth, excepting fines of growth and irregularly disposed, fine
spiral striations. Sutures moderately constricted. Periphery of the
last whorl well rounded. Base rather long, marked by lines of growth
and a few spiral striations. The columella bears seven lirations
which become successively weaker from the insertion to the pit.
Aperture moderately large. Posterior angle acute; outer lip thin.
#
The type, Cat. No. 250469, U.S.N.M., comes from Port Alfred (Coll.
No. 1342). It has five postnuclear whorls, and measures: Length,
6.5 mm.; diameter, 2.2 mm.
COLUMBELLA (ANACHIS), species?
Cat. No. 250471, U.S.N.M., contains a young shell from Port
Alfred, which we are unable to connect with any of the described
species (Coll. No. 1344).
COLUMBELLA (ANACHIS), species?
Cat. No. 249746, U.S.N.M., contains a young shell from Port
Alfred, which we are unable to connect with any of the described
species (Coll. No. 1018).