Strophomena and Other Fossils 
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the shell. In typical Dalmanella emacerata there is a tendency 
toward a more angular postero-lateral outline. In Dalmanella 
emacerata-brevicula this part of the outline usually is more rounded, 
but in neither case is this feature sufficiently constant to be of 
diagnostic value. 
In the type of Dalmanella emacerata, Hall, as preserved in the 
American Museum of Natural History, many of the finer striae 
are more or less obscured by the clay which still adheres to the 
specimen, but sufficient evidence is presented under a lens to 
make it certain that the striae of the type are very fine and close, 
as in the specimen figured under the name Dalmanella emacerata- 
filosa. Near the antero-lateral margins, 16 to 17 striae occur 
in a width of 5 mm. It is now evident that typical Dalmanella 
emacerata must not be identified with the much more coarsely 
striated form found in the Fulton bed, 2 feet above the crinoidal 
top of the so-called Trenton rock as exposed in the First Ward, 
in Cincinnati, Ohio. These specimens from the Fulton bed, for 
which the name Dalmanella fultonensis {Bull. Denison Univ., 
vol. XIV, plate VII, Fig. 1) is here proposed, are much more 
coarsely striate, having only about 10 striae in a width of 5 mm. 
In coarseness of striae they are more nearly allied to the Dal- 
manella multisecta type of shell. 
The horizon of typical Dalmanella emacerata is in the South- 
gate bed, about 160 feet above low-water in the Ohio River, at 
Cincinnati, Ohio. The lower forms, about 60 feet above the 
base of the Eden, are somewhat more coarsely striated. 
Dalmanella emacerata-brevicula occurs at the same horizons 
and the value of this varietal designation is still in doubt. The 
types occur in the Southgate bed. Both forms range up into 
the lower part of the McMicken bed. 
Hebertella subjugata, Hall 
{Plate VIII, Fig. 6) 
In this number of the Bulletin a view of another one of the 
types of Hebertella subjugata is added to that already published 
on plate II of vol. XVI of this Bulletin. This second type 
was illustrated by Fig. 1 N, on plate 32 C, of the New York 
Paleontology, vol. I. It is a less finely striated specimen, and 
similar specimens are common in the Fairmount and Bellevue 
