72 PROCEEDINGS OF THE ACADEMY OF [1895. 



* 



etc., but less marked in 11 and 12, crossed by six or seven spiral 

 raised lines, coarse or strong near the base of each whorl; one spiral 

 line, generally the second from the base forms a slight carination on 

 the whorls; body whorl with broad nodulations, about seven in num- 

 ber, and with strong spiral raised lines, the two on the largest part 

 of the whorls being largest, above which there are two or three well- 

 marked lines and below which to the end of the canal the lines 

 gradually decrease in size and are more or less alternating; labrum, 

 as far as observed, non-striate within; columella long, smooth, and 

 straight. 



This resembles somewhat F. meyeri Aid. 



Localities. — Smithville, Bastrop Co., Tex. Also in Claiborne and 

 Bienville Parishes, La. 



Geological horizon. — Lower Claiborne Eocene. 



Type.— Coll. of G. D. Harris. 



Fusus ostrarupis nov. sp. PI. 7, fig. 3. 



Specific characterization. — General form as figured; whorls 8; 1 

 and 2 smooth and polished, 3 sometimes polished, with long, undu- 

 lating costse, 4, 5, 6, 7 evenly striate spirally, and with seven or 

 eight longitudinal costye; costse decreasing in size about or just be- 

 low the suture where a slightly depressed zone occurs ; body whorl 

 with eight or ten costre somewhat variable in size, subsutural zone 

 much compressed, spiral striae moderately even but slightly strongest 

 on the largest part of the whorl ; labrum strongly striate within ; 

 columella recurving; umbilicus rudimentary. 



Locality. — Smiley 's Bluff, Brazos River, 2 miles above the mouth 

 of Pond Creek, Milam Co., Tex. Oyster Bluff of Penrose's Report. 



Geological horizon. — Midway Eocene. 



Type. — Texas State Museum. 

 Fusus mortoni, var. mortoniopsis Gabb. PI. 7, fig. 4. 

 Fusus mortoni Lea, var. carexus nov. var. PI. 7, fig. 5. 



Differs from mortoniopsis Gabb, which is doubtless a variety only 

 of mortoni Lea, by having a strong carina, one additional spiral line 

 on the shoulder and less strongly alternating on the canal. The shell 

 is much broader in proportion to its height and has a lower spire. 



Locality. — Between Orrell's and Evergreen Crossing, Elm Creek ; 

 Lee Co., Tex. 



Geological horizon. — Lower Claiborne Eocene. 



Type. — Texas State Museum. 



