6 
MONOGRAPH OP THE GENUS STROPHIA. 
nearest to the true S. scripta, I have considered it as the type of the 
sub-species. 
No. 3. More cylindrical than the type, with the first three 
whirls about equal in diameter and the shell is more slender, measuring 
about .30 in diameter. Whirls, 10. There are about seven per cent 
of this form. 
No. 4. A beautiful color form of a rich reddish or purplish brown 
throughout with delicate horizontal lines of white. This may prove to 
be a well marked sub-species, but as I have two specimens only give 
it as a form. 
No. 5. White in color, with few or no deckings and with the 
upper whirl somewhat larger than the second. There are eight per 
cent of this form. 
This sub-species, which after all may prove not to intergrade with 
S. scripta, may be readily distinguished from it by the smaller size 
and from the often nearly obliterated markings. These were also labeled 
‘‘P. chrysalis ” followed by the more valuable application of “ Mat- 
anzas Cuba, rocks close to the sea.’ 7 Judging from the maps, Matanzas 
is distant some twenty miles from Cardenas, the home of the true S. 
scripta. Although both forms may spread over a large area, and thus 
intergrade at some point on the coast, this is quite improbable and as 
intimated above, the two may prove quite distinct. 
58 STROPHIA FASTIGATA Novo. 
Plate II fig. 1, front, fig. 2, side view of type. . 
DESCRIPTION. 
Sp. Ch. Size, medium. Shell quite thick. Striations, present. 
Whirls, 10. Examined 62 specimens. 
Form of shell, a pointed cylinder with the first whirl the largest, 
the next four are each successively a little smaller, then the shell slopes 
abruptly to a somewhat obtuse point, forming an angle of sixty-two de- 
grees There are nineteen striations on the first whirl, not very promi- 
nent, not very regular, and not arranged in lines. They are not fur- 
rowed on top, but are smoothly rounded and polished. 
Aperture about as high as wide rather large and open, being consid- 
erably wider at the entrance than further within. Lower tooth small 
about .04 long by .02 high. It is about central in position, and is 
placed far back in the shell at about three times its length from the 
frontal bar. The upper tooth is about the same height as the lower. 
