76 Geological Survey of Alabama. 



? Pleurotoma insignifica, Heilpr. Proc. Ac. Nat. Sci., Philadelphia, 

 1879, p. 213, pi. 13, fig. 9. 



Small ; aperture and canal about one-third of the entire length ; the 

 pointed apex is formed by two and a half small, smooth, embryonic 

 whorls ; three rather large, transversely ribbed, embryonic whorls com- 

 plete the nucleus ; the largest specimen has three adult whorls they are 

 strongly carinated in the middle ; the upper part has only one revolving 

 line near the suture, the lower part three elevated spirals ; the upper part 

 indicates the position of the large, regularly rounded sinus ; the lines of 

 growth are almost rib-like. 



Localities. Red Bluff, Miss., Newton, Miss., Claiborne? Ala., Vicks- 

 burg, Miss (var.). 



The type -specimen is from Red Bluff, where the species is not rare ; 

 it is much larger than the others of this locality, which have only two 

 adult whorls. The only specimen from Vicksburg, which I have, however, 

 is of the same size, and has also three adult whorls ; though otherwise 

 agreeing with the Red Bluff form, it is so decidedly stouter that a varietal 

 name may be properly applied to it "var. brevis" As the same species 

 occurs also in Newton, I have little doubt that it is identical with that 

 Claiborne form which is described by Lea as Fusus nanus. If this is so, 

 it is one of the most generally distributed forms of Pleurotoma of the 

 Southern Tertiary. 



MANGELIA MERIDIONALIS, n. sp. PI. 1, fig. 14. 



Fusiform, somewhat inflated ; spire turriculated, acuminated ; canal 

 short ; nucleus consisting of two rounded and two carinated smooth 

 whorls ; adult whorls five, convex, with transverse ribs, about thirteen 

 on each whorl, and with elevated spiral lines ; these spirals are small and 

 close together on the uppermost part of each whorl, which is defined by 

 the sinus ; sinus broad, near the suture ; a curved varix on. the outer lip. 



Localities. Claiborne, Ala., Red Bluff, Miss. 



From Claiborne I have only the figured type-specimen, without pre- 

 served nucleus. 



BULLA BITRUNCATA, n. Sp. PI. 2, fig. 24. 



Short and stout ; spire hidden ; columella anteriorly with a strong, 

 oblique fold ; surface covered with indistinct, elevated, rounded, revolv- 

 ing lines. 



Locality. Jackson, Miss. 



