Bulletin - United States National Museum - Smithsonian Institution

SOUTH AFRICAN MARINE MOLLUSKS. 49
13 ribs occur upon the last and 14 upon the preceding turn.
The spiral sculpture consists of 10 irregularly developed, low, broad
cords, of which the three on the shoulder are almost obsolete and
scarcely discernible; while the four upon the base are fairly strong.
In addition to these cords the entire surface is marked by fine more
or less regularly developed, punctate, spiral striations. Posterior
angle of aperture acute, outer lip provided with nine slender denticles
a little within its inner margin ; columella glazed with a moderately
strong callus; parietal lamellae only slightly developed.
The type and two specimens, Cat. No. 187019, U.S.N.M., were
collected at Port Alfred (Coll. No. 554). The type has lost the
early whorls; the last four remaining measure: Length, 29.2 mm.;
diameter, 15 mm.
COMINELLA CAPENSIS Dunker.
Cat. No. 184, U.S.N.M., three specimens collected by William
Stimpson on the North Pacific Exploring Expedition at Simons Bay.
COMINELLA UNIFASCIATA Sowerby.
Cat. No. 186748, U.S.N.M., four specimens from Port Alfred (Coll.
No. 107).
COMINELLA PUNCTURATA Sowerby.
Cat. No. 19375, U.S.N.M., three specimens from Cape of Good
Hope. Cat. No. 43074, U.S.N.M., two more from the same locality.
Cat. No. 186749, U.S.N.M., five from Port Alfred (Coll. No. 108).
Cat. No. 127769, U.S.N. M., six specimens from the same locality
(Coll. No. 864). Cat. No. 227770, U.S.N.M., six specimens from the
same source (Coll. No. 865).
COMINELLA ANGUSTA Sowerby.
Cat. No. 186751, U.S.N.M., two from Port Alfred (Coll. No. 110).
COMINELLA, species?
Cat. No. 16992, U.S.N.M., four specimens too poor to be specifically
determined from the Cape of Good Hope.
COMINELLA, species ?
Cat. No. 18807, U.S.N.M., three specimens from Port Elizabeth
which are too poor to be specifically determined.
COMINELLA, species?
Cat. No. 187021, U.S.N.M., two specimens from Port Alfred, too
poor to permit of specific determination. Cat. No. 249745, U.S.N.M.,
contains three specimens from the same source (Coll. No. 1017).
GenusTRITONIDEA Swainson.
TRITONIDEA INSCULPTA Sowerby.
Cat. No. 186752, U.S.N.M., three specimens from Port Alfred
(Coll. No. 111).