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 nodulatious, 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 costee; costse decreasing in size about or just be- 

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

 with eight or ten costee 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. PL 7, fig. 4. 

 Fusus mortoni Lea, var. oarexus nov. var. PL 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. 



