MONOGRAPH OF THE GENUS STROPRIA. 29 
Aperture, very small, higher than wide, slightly contracted at the 
entrance. The lower tooth is about three times as long as high, is 
placed a little to the left of the center, and is set well back, nearly once 
its length from the frontal bar ; the upper tooth is represented by a 
very slight tubercle. 
The margin is not produced quite as far forward as the diameter 
of the shell, is placed far over to the right, and extends a little beyond 
the side, it is exceedingly thin, slightly flanging, but not rolled over at 
all and the edge is smooth. The frontal bar is comparatively well de- 
veloped, very short, and the striations do not appear within it. 
Color of shell externally, pale brown, but appears darker on ac- 
count of the accumulation of earth in the transverse depressions ; in- 
ternally, also pale brown, becoming lighter on the tooth and margin. 
DIMENSIONS. 
Size of typical specimen, .75 by .25 Size of one other specimen 
examined, .70 by .25. 
OBSERVATIONS. 
I have seen two only of this remarkable species, which as Pfeiffer 
remarks, recalls the members of the marine genus, Scalaria. There need 
be no comparison made with other members of the genus as far as yet 
known, for none have the peculiar turreted form, large striations, which 
in this respect reach the maximum development among Strophias, 
while they also represent the minimum in numbers, and it is the 
most acutely pointed Strophia which I have seen. 
The following is the original description from the work cited at 
the beginning of this article. 
“ T. profunda rimata, turrito-oblongo, solida, valide plicata, cornea, 
plicis albidis ; spira subregularter attenuata, apice obtusa, anfr. 10 1-2 
supreni planiusculi, striati, 6 ultimui convexi, subangulati, ultimus 1-3 
longt fere foramens, basi compressus, striatus ; apertura vix obliqua 
ovalis, denticuloprofundo, parietuli coarctata ; perist. subcontinunum, 
breviter adnatum, album, reflexum. Long 18, diam. 6 2-3 mill. Ap. c 
perist. 5 2-3 mill, longa, 4 1-2 lata. Hab. prope Gibara. 
Translated may be read as follows. Shell, deeply rimate, turreted, 
oblong, solid, strongly plicated, ribbed outwardly, ribs white ; spire, sub- 
regular, sharpened, tip obtuse, whirls, 10 1-2, somewhat even, striated, 
with the six last convex, sub-angular ; the last one-third the others ; 
with a little opening ( umbilicus ) compressed at the base and striated. 
Aperture a little obliquely oval, tooth deep, with sides compressed. 
