Bulletin - United States National Museum - Smithsonian Institution

84 BULLETIN 91, UNITED STATES NATIONAL MUSEUM.
external sculpture within; inner lip very slender, decidedly curved and
reflected; free only at the extreme anterior portion, the rest ap-
pressed parietal wall glazed with a thin callus.
;
The type and two specimens, Cat. No. 187054, U.S.N.M., come
from Port Alfred (Coll. No. 592). The type has nine postnuclear
whorls, and measures: Length, 4.2 mm.; diameter, 1 mm.
TURBONILLA (CARELIOPSIS) CARIFA, new species.
Plate 20, fig. 4.
Shell small, elongate-conic, semitranslucent, bluish-white, nuclear
whorls, at least two, large and smooth, forming a depressed helicoid
spire, which is a little more than half obliquely immersed in the first of
the succeeding turns. Postnuclear whorls well rounded, feebly shoul-
dered at the summit, marked by quite regular, equal and equally
spaced, fine spiral lirations, of which 9 occur upon the first and second,
10 upon the third, and 11 upon the penultimate turn between the
sutures. Suture decidedly constricted. Periphery of the last whorl
well rounded. Base moderately long, very narrowly umbilicated, a
little less strongly rounded than the space between the sutures, marked
by about 11 spiral lirations of about the same strength and spacing
as those occurring on the spire. In addition to the spiral sculpture,
the whorls are marked by exceedingly fine, decidedly retractively
slanting lines of growth. Aperture moderately large, oval; posterior
angle obtuse; outer lip thin, showing the external sculpture within;
inner lip strongly curved, very slender, reflected over and attached
to the body whorl, except the extreme anterior portion, which is free;
parietal wall covered by a thick callus.
The type, and another specimen, Cat. No. 250390, U.S.N.M., comes
from Port Alfred (Coll. No. 1263). The type has five postnuclear
whorls, and measures: Length, 2.1 mm.; diameter, 0.7 mm.
TURBONILLA (MORMULA) CIFARA, new species.
Plate 16, fig. 5.
Shell large and robust, elongate-conic, bluish white. Nuclear
whorls decollated. Postnuclear whorls slightly rounded, roundly
shouldered at the summit and weakly contracted at the suture,
marked by rather strong, somewhat irregular, slightly retractive,
axial ribs and an occasional vanx, marking the fusion of a number
of ribs. The varices are irregularly disposed. Of the axial ribs, 22
occur upon the first and second, and 20 upon all the remaining turns
but the penultimate, which has 22 ; on this turn they are rather irreg-
ularly disposed and less strongly developed. In addition to the axial
ribs the whorls are crossed by weakly incised spiral lines, which are of
somewhat varying strength. There are probably 50 of these between
the sutures. These lines and the feeble lines of growth between the