MONOGRAPH OF THE GENUS STROPHIA. 
7 
Margin, not produced forward as far as the diameter of the shell, 
is very slightly inclined to the right and a little beyond the side, but 
is extended outward about .05 and slightly rolled backward and the 
edge is rounded. The frontal bar is quite well developed, is somewhat 
obliquely inclined and almost completely interrupts the striations 
which are slightly indicated only within. 
Color of shell, externally, white without markings ; internally, pale 
yellowish brown, fading into white on the margin. 
DIMENSIONS. 
Size of type 1.20 by .40. Largest specimen, 1.25 by .42 ; smallest, 
1.10 by .35. Longest ; 1.20; shortest, 1.10. 
OBSERVATIONS. 
Young specimens with the margin fully form ed, but in which the 
frontal bar is not fully developed, do not have the teeth. There is very 
little individual variation, some shells being a little more obtuse than 
the type, but there is a form as given bekrw. 
Form No. 1 with fev 7 er striations, these being mainly absent on all 
but the upper three -whirls, where they are finer and more numerous, 
about 28 to the first whirl. There is in many instances in this form a 
distinct double lower tooth. There is also an inclination in some speci- 
mens of the type form to assume a double lower tooth. 
This species may be distinguished by the rather large aperture, 
pointed cylindrical form of the shell, comparatively small size and 
white, unflecked color. 
This species I found in the collection in the same tray with the 
shells which I have named S. scripta obliterata, therefore it is to be 
presumed that they came from Matanzas, Cuba, but as all of the shells 
of S. fastigata are deeply stained with a red earth of which those of S. 
s. obliterata bear no trace, it is evident that they did not come from the 
“rocks close to the sea” as did the others, but probably from some 
neighboring field. They were also labled “ Pupa chrysalis. Another 
lot was labeled “ Punte Goade, Matanzas, Pupa infanda,” and still 
another lot “ Chorrea, Pupa mumia.” 
59 STROPHIA EURYSTOMA Novo. 
Wide=mouthed Strophia, 
Plate II fig. 3, front, fig. 4, side view of type. 
DESCRIPTION. 
Sp. Ch. Size rather large, shell quite thick and heavy. Stria 
tions, present. Whirls, 11. Examined 21 specimens. Form of shell 
