Tue N Aeri.us. 
Vou. VII. JANUARY, 1894. Nos 9: 
NEW TERTIARY FOSSILS FROM RED BLUFF, MISSISSIPPI. 
BY T. H. AEDRICH: 
The fossil-bearing stratum designated by Dr. E. W. Hilgard as 
the “ Red Bluff group,” occurs in Wayne County, Mississippi, near 
Red Bluff station, and is exposed on the banks of the Chickasawharg 
River. The fossiliferous stratum is four feet thick and contains 
beautifully preserved specimens imbedded in a greenish clay. 
Through the kindness of Prof. WW. H. Dall I have had an oppor- 
tunity to examine the collections of the National Museum, which 
were obtained here by Mr. F. Burns and others and with a series 
in my own cabinet have been enabled to list 135 species from this 
bed. Of these 26 are peculiar; 25 are found also in the beds at 
Jackson, Miss.; 54 occur also at Vicksburg, and 30 are also com- 
mon to Jackson and Vicksburg. This bed, therefore, should be 
classed with the Vicksburg series. The following are described as 
new: 
Mitra lintoidean.sp. Pl. 4, fig. 1. 
Shell fusiform, whorls nine, somewhat turrited, densely but 
coarsely longitudinally ribbed, a transverse impressed line behind 
the suture gives the upper whorls the appearance of being beaded ; 
aperture narrow, elongate; outer lip sharp, slightly incurved, 
striated within, labium four plaited; canal open, rather short, 
curved, a number of impressed lines showing upon the lower part 
of body whorl. Alt. 27 mm.; diam. 8 mm. 
This species differs from Fusimitra cellulifera Con. by its lack of 
