22 MONOGRAPH OF TIIE GENUS STROPIIIA. 
OBSERVATIONS. 
Some specimens are prcpotionately shorter than others and there 
are rather more markings on some than others, many being less marked 
than the type. There is one well defined form as given below. 
Form No. 1. More slender and more cylinderical than the type 
the first three whirls being about equal in size, 1 .05 by .43. The sut- 
ure between the whirls are quite shallow and there are few fleckings 
which are confined to the lower four or five whirls. 
1 found these shells in the collection labeled “ Pupa sagraiana Pfr., 
Cayo Birde del Norte, Cuba.” 
This is not the Pupa sagraiana of Pfeiffer, however, as can be read- 
ily seen by reading his description with care. He says distinctly that 
sagraiana is elegantly marbled, that there are narrow striations, besides 
his shell was much smaller, not quite an inch long, and very slender, 
about .40 in diameter. It was also a differently proportioned shell as the 
aperture was as wide as the diameter of the shell, and very nearly as 
high, thus the shell was at least one fourth shorter than any specimen 
of S. obscura that I can find, but the aperture w r as fully as large. 
Further on, he gives a larger form calling it Beta major, says that 
it is marbled witti fuscous and smooth, but the size of this is given as 
20 mill, by 10 mill. This is much too small for any shell of S. obscura. 
Pfeiffer’s types of P. sagraiana came from Cayo Galinda. Cuba where 
he says l)r. Gundlach found it common, and it is probable that we 
shall have to see shells from that place before we find the true P. 
sagraiana. 
66 STROPHIA CYCLOSTOMA Kuester. 
Circular Strophia. 
Plate IV, fig. 3, front, fig. 4, side view of type. 
Pupa cyclostoma Kuester, Chemn., ed. II, Pupa, page 9, plate I, 
figs. 3 and 6, 1852. 
DESCRIPTION. 
Sp. Ch. Size, small. Shell, rather thin. Striations, present. 
Whirls, 9, the upper of 'which, including margin, is equal to the next 
six. Examined 35 specimens. 
Form of shell a pointed cylinder, with the first three whirls about 
equal in diameter, then the shell slopes to a rather obtuse point, form- 
ing an angle of about sixty degrees. The striations are thirty -seven 
to the first whirl, narrow, not wider than the interspaces between them, 
they are somewhat angled, but the tops are smoothly rounded and pol- 
