Bulletin - United States National Museum - Smithsonian Institution

SOUTH AFRICAN MARINE MOLLUSKS. 93
Genus EUGYRINA Dall.
EUGYRINA GEMNIFERA Euthyme.
Plate 9, figs. 1, 4.
Cat. No. 227776, U.S.N.M., two specimens from Port Alfred (Coll.
No. 871). I have figured one of these for comparison with the sub-
species described below. Cat. No. 187023, U.S.N.M., contains another
specimen from the same locality (Coll. No. 55S). Cat. No. 186705,
U.S.N.M., a young tip from the same locality (Coll. No. 65a). Cat.
No. 186787, U.S.N.M., contains one specimen from the same place
(Coll. No. 148.)
EUGYRINA GEMNIFERA LEPTA, new subspecies.
Plate 8, figs. 1, 4.
Shell similar to E. gemnifera but narrower and much lighter in weight.
The sculpture is decidedly reduced. The tubercles are much more
numerous and much less strongly defined than in E. gemnifera, there
being 12 on the last volution of typical gemnifera while lepta has 20 and
14 on the whorl preceding to 22 in lepta. In fact, the entire sculpture
is much finer in lepta than in gemnifera.
Cat. No. 227777, U.S.N.M., contains the type and another specimen
from Port Alfred (Coll. No. 872) and Cat. No. 187024, U.S.N.M.,
contains one specimen from the same locality (Coll. No. 559). The
type has lost the tip, the seven whorls remaining measure: Length,
84.2 mm.; greater diameter, 46.3 mm.
Genus ARGOBUCCINUM Moreh.
ARGOBUCCINUM ARGUS Gmelin.
Cat. No. 91, U.S.N.M., one specimen collected by William Stimpson
on the North Pacific Exploring Expedition at Simons Bay. Cat. No.
16920, U.S.N.M., two from Cape of Good Hope. Cat. No. 125376,
U.S.N.M., two from Cape Town, collected by the U. S. Eclipse Expedition
in 1890. Cat. No. 227775, U.S.N.M., one specimen from Port
Alfred (Coll. No. 870).
ARGOBUCCINUM, species?
Cat. No. 97, U.S.N.M., a fragment of a large specimen embracing
the aperture and part of the pillar, collected by William Stimpson
on the North Pacific Exploring Expedition at Simons Bay.
Genus CYMATIUM Bolten.
CYMATIUM DOLIARIUM Lamarck.
Cat. No. 106, U.S.N. M., two specimens collected by William Stimp-
son on the North Pacific Exploring Expedition at Simons Bay. Cat.
No. 88628, U.S.N.M., two from Cape of Good Hope. Cat. No. 186788,
U.S.N.M., two from Port Alfred (Coll. No. 149).