“WHITE. ] LARAMIE FOSSILS. 87 
but the spire is proportionally more elevated, and consequently the body 
volution, although large, is proportionally smaller. 
Some examples of a Lulinus from the coal-bearing series near EHvans- 
ton, Wyo., which I at one time supposed to be identical with this spe- 
cies, Shows the same peculiarity of the inner lip, namely, the lifting 
of the anterior portion of the callus from the body of the shell. That, 
however, is probably a distinct species, and, if so, the peculiarity men- 
tioned, would seem not to be confined to this specific form alone. 
Position and locality.—Laramie Group valley of Crow Creek, North- 
ern Colorado, about ten miles above the contluence of that creek with 
Platte River. An example brought in by one of the parties of this Sur- 
vey from Separation Station, Union Pacific Railroad Wyoming, seems 
to belong to this species. 
BULINUS LONGIUSCULUS Meek & Hayden. 
BULINUS ? RHOMBOIDEUS Meek & Hayden. 
These two species are from the Laramie strata near Fort Union on the 
Upper Missouri River, where the types were collected by Dr. Hayden. 
The former has been identified with a good degree of certainty in the 
coal-bearing strata near Evanston, Wyo., and examples of a species 
apparently identical with the latter have been found associated with it. 
Mr. Meek describes these two forms in vol. ix, U.S. Geol. Sur. Terr. 
(4to ser.), pages 441 and 442, respectively, and both of them are figured 
on plate 43 of the same volume. 
BULINUS SUBELONGATUS Meek & Hayden. 
Dr. Hayden also obtained the types of this species from the Judith 
River series of the Laramie Group, in the Upper Missouri River region. 
It has been identified with a good degree of certainty among fossils col- 
lected from the coal-bearing strata near Evanston, Wyo. It is described 
and figured in vol. ix, U.S. Geol. Sur. Terr. (4to ser.), p. 540, plate 42, 
figs. 13 a and bD. 
Genus VITRINA Draparnaud. 
VITRINA ? OBLIQUA Meek & Hayden. 
The type specimen of this form, which evidently represents a well de- 
fined species, although its true relations are not accurately known, was 
obtained by Dr. Hayden from the Laramie strata of the Judith River 
series with the large collections which he obtained many years ago in 
the Upper Missouri River region. It is described and figured in vol. 
ix U.S. Geol. Sur. Terr. (4to ser.), plate 42, figs. 10 a and b. 
Genus HYALINA Férussac. 
HYALINA? OCCIDENTALIS Meek & Hayden. 
HYALINA? EVANSI Meek & Hayden. 
The types of these two species are also from the Judith River series 
of the Laramie Group; those discovered by Dr. Hayden being the only 
