74 G-eological Survey of Alabama. 



apex obtuse. A species similarly distinguished by its very slender form 

 is Caneellaria Bezanconi, de Boury,* from the French Tertiary. 



LATIRUS HUMILIOR, Meyer. PL 2, figs. 20, 20a. 



Turbinella humilior, Meyer. Am. Jour. Sci., XXIX., 1885, p. 464. 



Faseiolaria Jaeksonensis, Aldrich. Jour. Gin. Soc. Nat. Hist., 1885, 

 p. 150, pi. 2, fig. 12. 



Fig. 20 represents my oldest specimen ; its canal is somewhat shorter 

 than usual. Fig. 20a is a young specimen. Fig. 19 shows, for com- 

 parison, Latirus protracta, Con., sp., from Vicksburg. I refer to the 

 above-cited place. 



MUREX ANGULATUS, n. Sp. PI. 2, fig. 18. 



Ovate ; nucleus consisting of four smooth, embryonic, rounded whorls, 

 which rapidly increase in size ; adult whorls angular, with edged, trans- 

 Verse ribs, which, on the angles, are produced into spines on the body 

 whorl they number ten ; a few distinct, elevated, revolving lines cover 

 the lower part of each whorl ; canal slightly curved. 



Locality. Jackson, Miss. 



MUREX SIMPLEX, Aldr., var.; aspinosux, n. var. PI. 2, tig. 21. 



Ovate ; whorls convex, with obtuse, transverse ribs seven on the body 

 whorl ; covered by elevated, sharp, distinct, revolving lines, which on the 

 older whorls alternate with faint ones ; canal nearly straight ; outer lip 

 thickened, crenulate within ; callus of inner lip with three obtuse teeth. 



Loca'ity. Red Bluff, Miss. 



Murex simplex, Aldr., from Byram Station, Miss., has spinous ribs. 



TURRICULA CINCTA, n. sp. PL 1, fig. 13. 



t Mitra gracilis, H. C. Lea. Am. Jour. Sc,i., XL, 1841, p. 101, pi. 

 1 , fig. 20. 



Slender, except near the apex, where the whorls are rapidly diminishing 

 in size ; whorls eight, rather flat ; except the first two, smooth, embryonic- 

 whorls, covered with transverse ribs, which become obsolete on the last 

 whorls ; parallel to the suture, an impressed spiral line produces a broad 

 band along the suture ; aperture narrow ; columella with four folds, down- 

 ward diminishing in size and extending over the base of the shell, striat- 



Mfm de la Sue. GtoL, 3me ser., III., 1884, p. 105, pi. 3, fig. 8, 



