20 Geological Survey of Alabama. 



ing large longitudinal ribs pointed at the angle, extending nearly to the 

 sulcus below, above reaching to the suture, where they abruptly turn to 

 the left and form rather deep pits betwen them. The carina of the body 

 whorl has a raised line connecting the pointed part of the tuberculatious ; 

 all the whorls below the nucleus show the tuberculations ; sulcus rather 

 deep. No umbilicus ; entire surface covered with very fine revolving 

 lines. 



Locality. Matthews' Landing, Ala. 



Nearest to Pseudoliva tuberculifera Con.; but that species has strong 

 revolving lines ; its tubercles are lower down on the body whorl, not 

 sharp ; the sutural part is entirely different, and the shell is besides much 

 more fusiform. 



The pits above mentioned are very small on young specimens, and are 

 not shown in the figure. 



PSEUDOLIVA SCALINA, Heilpr. PL 6, fig. 10. 



Pseudoliva scalina, Heilpr. P. A. N. S., p. 371. PI. 20, fig. 12, 



1880. 



The figures given by Prof. Heilprin do not give a clear idea of this 

 species. Our figure is from the type, and has been redrawn by Dr. Otto 

 Meyer. The original, now in the University Cabinet at Tuscaloosa, Ala., 

 is from Wood's Bluff, Ala., and is extremely rare there. 



At Bell's Landing, on the Alabama River, it occurs of gigantic dimen- 

 sions. The largest specimen in the University Cabinet is 4 T 8 ^ inches 

 long, and 2^ inches wide. The transverse lines are dim from wear, 

 the tuberculations are strongly curved to the right, the plaits on top rise 

 up to the suture of the succeeding whorl abruptly from the shoulder and 

 are bent to the left. 



Very close to Pseudoliva robusta Briart et Cornet, from the Calcaire 

 Grossier de Mons, France. 



TRITON (SIMPULTJM) CONRADIANUS, Aldr. PI. 2, fig. 8. 



Triton (Simpulum) Conradianus, Aldr. J. C. S. N. H., July, 1885, 

 p. 148. PL 2, fig. 8. 



Very common in Eastern Mississippi, in the Red Bluff Strata. 



RANELLA (ARGOBUCCINUM) TUOMEYI, n. sp. PL 3, fig. 3. 



Shell oblong-ovate, canal strongly recurved, bent upward ; whorls seven ; 

 spire elevated, pointed, the first two whorls smooth, the others cancellated, 



