24 
MONOGRAPH OF THE GENUS STROPHIA. 
tie sharpened, as it is also in P. uva, it is a little diminished toward the 
tip, walls somewhat thin and polished. Column smooth. 
The rest of outer surface is beset with very numerous fine striations, 
somewhat angled, with interspaces about the same width. The striations 
are somewhat curved on the upper whirls and are quite prominent, but 
on the lower whirls are quite straight. The whirls, ten in number, are 
not bulging, (a little convex ) about straight; bound together by a sin- 
gle deepened furrow ( suture) . Mouth about round, on the wall of the 
mouth a strong fold ( lower tooth ), a second smaller one on the collu" 
raella. The margin of the mouth continuous, with a thick, produced lip 
reflexed outward. Ground color } T ellowish white, with pale reddish yel- 
low spots, which for the most part are spread into the interspaces be- 
tween striations. Mouth pale yellowish. Height 9’” length 3 2-32” 
Habitat unknown .” 
I have based the foregoing description upon specimens in my own 
collection, but I found none in the museum collection. All are simply 
labeled “ Cuba.” 
68 STROPHIA MICROSTOflA. Pfeiffer. 
LStt!e=mouthed Strophia. 
Plate VI, fig. 1, front, fig. 2, side view of type. 
Pupa microstoma Peiffer, Malak. Elat., 1854, page 207, plate 3, 
figs. 15 and 16. 
DESCRIPTION. 
Sp. Ch. Size, small. Shell rather thick. Striations, present. 
Whirls 9. The upper, including margin, being about equal in length 
to all of the others put together. Examined 52 specimens. 
Form of shell a pointed cylinder wfith the first three whirls equal 
in diameter, from this, the shell slopes to a rather acute point, forming 
an angle of fifty-five degrees. The striations are twenty to the first 
whirl, narrow, being about one half the width of the interspaces between 
them, straight on all excepting the two upper whirls, where they are 
slightly bowed to the right; they are regular, but not arranged in lines 
are not furrowed, but are smoothly rounded and polished. The whirls 
are not bulging and the suture is rather deep. 
Aperture, small, somewhat contracted within, circular, about as 
wide as high. The lower tooth is very small, being reduced to a mere 
tubercle, which is but little longer than high ; it is placed a little to 
the right of the center and far back in the mouth, at least four times 
