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BULLETIN OF THE LABORATORIES 
II, and above the free-stone proper or in its upper sandy layers. All 
our specimens being derived from Union Station and Granville. 
Gasteropoda. 
Loxoneina yandeMana, H. (?) 
(Plate VIII, Fig. 23.) 
The fragment referred to this species agrees with the figures of the 
Spergen Hill form quite nearly, except in the presence of a well- 
marked sutural band, which may after all be due to the state of pres- 
ervation. It is possible that the portion figured is only the upper part 
of the spire of a larger species. Most of our specimens do not pre- 
serve surface markings and can not be safely identified. 
Cycloneina leavemvorihana, Hall. ? 
(Plate I, Fig. 20 ) 
This beautiful shell occurs in the upper part of the freestone near 
Granville, and differs in no respect from those described from the 
Spergen Hill limestone. From Murchisonia, some species of which 
it resembles closely, it differs in the absence of a peripheral band, the 
six volutions being marked only by thread-like revolving striae. Our 
specimen is perhaps rather more slender than the types. 
Fleiirotomaria ^Cyclonema?) stri^illata. sp. n. 
(Plate I, Fig. 10, Plate H, Fig. 25.) 
Very similar to Cyclonema lyrata, Hall. Spire moderateiy ele- 
vated, composed of from two to four whorls, which are distinctly tri- 
carinate below, but bicarinate above. The whorls increase rapidly, 
the body whorl being about one-fourth the entire height. The lower 
whorl is marked by rather distinct crowded incremental lines, which 
arch sharply backward in passing over the median carina, indicating 
that the aperture was probably notched. The two accessory carinse 
are nearly as strong as the median one. The whorls are quite convex 
