1853.] 817 
The earliest fossil that I can recognize among American species is Fulgur 
trabeatum, Con., from the Older Eocene of Alabama. The Lower Tertiary 
species are comparatively small, whilst in the Miocene and later deposits they 
are far larger and more numerous, and very characteristic of those Tertiary 
divisions. 
Fossil Spectes. 
Eocene. 
1. Futcur TrRaBeatum. Subfusiform, thin, ventricose, with elevated re- 
volving striz at base and more obscure ones above ; body whorl, with two dis- 
tinct series of compressed tubercles: the humoral series continued on the spire; 
whorls angular; beak produced, slightly sinuous; aperture patulous. 
Fusus trabeatus, Con. Foss. Shells of Tert. Form, 2d ed. p. 53, t. 18, fig. 1 
August, 1833. ist ed. p. 29, No 3. 
F, bicarinatus, Lea. Cont. p. 146, pl. v., fig. 147. Oct., 1833. 
Locality.—Claiborne. Ala. Older Eocene. 
2. EF. sPINIGERUM. 
Fusus spiniger, Con. Proceed. A. N.S. 1847, Journ. A. N.S. vol. 1, 2d 
series, p. 117, pl. x1., fig. 32. 
Locality.—Vicksburg, Miss. Newer Eocene. 
3. F. noputatum. Pyriform, thick, with strong rugose, revolving lines, with 
a very fine intermediate line between most of the large strie; on the inferior 
part of the body whorl is a space without lines, below which the whorl has a 
slightly concave slope towards the beak; angle tuberculated, the series con- 
tinued on the spire near the suture; in some specimens the tubercles margin 
both sides of the suture; spire short; sides of volutions concave; labrum with . 
rather distant, prominent, acute lines within; beak straight. 
F. nodulatum, Con. Journ. A. N,S., vol. 1, 2d series, p. 207 and vol. il. 
Wo Cutky polg tS Fires (5 
Locality.—Vicksburg, Miss. Newer Eocene. 
Miocene. 
4. F. coronatum. Fusiform, ventricose, with fine, closely-arranged, revolv- 
ing, wrinkled lines; spire short ; whorls flattened above, and having elevated, 
compressed tubercles or short spires on the angle, which is somewhat carinated; 
suture channelled and margined by an obtuse carinated line. 
F.. coronatus, Con. Miocene Shells, cover of No. 2, 1839. 
F. canaliculatus, Lyell (not Lin.) Manual, p. 172, fig. 151. 
Locality.—St. Mary’s Co., Maryland. 
This fine species is very distinct from the recent canaliculatum, being less ven- 
tricose and having prominent tubercles in all stages of growth. It is abundant. 
The largest specimen measures six inches in length. 
5. F. canaticutatum. This recent species has been found in a fossil state, 
but is rare. It agrees perfectly in form and character with the living shell. 
Localities.—St. Mary’s river, Md. Natural Well, Duplia Co., N.C. 
6. F. rucosum. Pyriform, with numerous, rather coarse revolving lines, dis- 
posed to alternate in size, and very distinct lines of growth; whorls scalariform, 
with a tuberculated carina, the margin of which presents a waved outline, the 
tubercles being obtuse; spire prominent, profoundly channelled at the suture; 
margin of the channel carinated in young shells. Length 3 inches. 
F. rugosus, Con. Proceed. A. N.S. vol. 1, p. 307. 
Compared with F. coronatum, this species, when adult, is comparatively 
shorter and more inflated, with a shorter spire, much coarser revolving lines, 
which, with the more numerous, more obtuse tubercles, give the shell a very 
different appearance from I’. coronatwm. 
Locality.—St. Mary’s river, Maryland. 
7. F. rusercutatum. Fusiform, with revolving strie ; spire elevated; angle 
of the whorl carinated and crowned with prominent tubercles ; body whorl ven- 
tricose. 
