23 LiGNiTic Stage 23 



eleven nearly vertical t more oblique on the body whorl) costae. 

 extending from suture to suture, somewhat carinated centrally, 

 crossed on the shoulder by about six fine spiral striae and three 

 or four strong rai'^ed lines below the middle of the whorl; colu- 

 mella very obliquely striate below. 



I have tried in vain to refer this to the young of some larger 

 form. The broad retral sinus on the humeral zone distinguishes 

 this species at once from the preceding. 



Locality. — A L A . : Woods bl u ff . 



Type. — Paleontological Museum, Cornell Univ. 



Pleurotoma carlottae, n. sp., PI. 3, fig. i. 



Specific charanerisation.—'^Yi^ and general form as indicated 

 by the figure; whorls about 10; 1,2 and 3 smooth, increasing 

 rapidly in si^e, 4 and 5 longitudinally costate, 6-9 marked by ' a ) 

 a rather prominent subsutural raised broad line, (b) numerous 

 costae very prominent on the middle of the whorls but faint above 

 and below, crossed on the humeral region by a faint spiral line 

 and on the carina! by two stronger spirals, and by a fourth spiral 

 half way from carina to suture below; 10, or body whorl, marked as 

 6-9 but having the .subsutural band sometimes furrowed by a 

 medial spiral line and more or less crenulated by many rather 

 deep transverse lines; raised spirals alternating and decreasing in 

 strength towards the base. 



Localities. — Ala.: Woods bluff; 3 mi. S. W. of Thomasville. 



Type and speciinen figured. — Woods bluff: Paleontological 

 Museum, Cornell Univ. 



Pleurotomella Sigma, n. sp., I'l. 3, fig. 2. 



Specific characterization. — Size and general form as shown by 

 the figure; whorls about seven; (apex?); marked by about four- 

 teen rather prominent costre. vertical and of about the breadth of 

 the interspaces above, but Ijecoming more oblique and of about 

 one-half the breadth of the interspaces below, especiall\- on the 

 body whorl; a .slightly elevated band ju.st below the suture; sur- 

 face covered with evenlv set, alternating coarse and fine lines. 



