476 PROCEEDINGS OF. THE ACADEMY OF [1896. 



Cancellaria silvaerupis n. sp. PI. XX, fig. 11. 



Specific characterization. — General form and size as indicated by 

 the figure ; whorls about 6 ; 3 embryonic smooth ; others with about 

 8 strong spiral lines between the suture above and the suture below ; 

 incremental lines especially prominent between the strong raised 

 spirals ; labrura sharp at edge but abruptly thickening and varicose 

 a slight distance within ; columella concave, two plaits on its sub- 

 central portion and one marginal below. 



This species reminds one somewhat of C. quadrata of England and 

 C. ulmula of Texas. 



Locality, Wood's Bluff, Ala. 



Murex morulus Con. PI. XX, fig. 12. 



In this collection there are specimens of various sizes, and they 

 show one marked peculiarity. When small and young the anterior 

 canal is long but curved ; afterwards it seems to grow no more in 

 length, but becomes extremely bent or twisted, and a large umbili- 

 cus is formed. 



Locality, Wood's Bluff, Ala. 



Latirus imbricatulus n. sp. PI. XXI, fig. 2. 



Specific characterization. — General form and size as indicated by 

 the figure; whorls 10; 1-4 embryonic, smooth; the remaining 

 spiral whorls with about 7 costre crossed by about 6 very strong re- 

 volving strise between which there are an equal number of fine 

 spirals. Labrum lirate within ; columella very much twisted and 

 showing signs of plications, especially at the basal angle. Umbilicus 

 not large, but well defined. The most peculiar feature of this spe- 

 cies is the imbricate appearance of the incremental lines. This 

 strongly reminds one of some of the Muricidse. The general form of 

 the species is much like Latirus rugatus Dall from the Ballast 

 Point Silex beds. 



Locality, Wood's Bluff. 



Pyropsis perula Aid. PI. XXI, fig. la. 



This is such an unusually large and fine specimen, it has seemed 

 worth while to have it figured, although it comes from the typical 

 locality. 



Sipho ■? erecta AUl. PI. XXI, fig. .3. 



We are inclined to regard this beautiful, though imperfect, speci- 

 men as an adult form of Aldrich's S. erecta. The punctate appear- 

 ance in the indented spiral lines indicates a relationship to the 



