41 



In the first edition of this No. it was inadvertently named Vul- 

 varia galba. It may prove to be the Bulhi constricta, Sow. 



VOLUTA SAY ANA. Tab. 16, Jig. 1. 



Ventricose, with numerous distinct longitudinal striae ; body vo- 

 lution profoundly undulated above, the ridges tuberculated by the 

 intersection of coarse spiral lines ; lines less distinct in the middle 

 and profound near the base; columella 4-plaited, the superior one 

 obsolete; labium striated within. 



Syn. V. GRACILIS, V. DEFKANCII, V. PARVA, Lea, Con. p. 171. 



Locality. Claiborne, Alab. 



A common species, allied to V. luctator. The plaits vary in 

 number : one specimen is profoundly cancellated, and has a de- 

 pressed spire. The species is dedicated to Say, the lamented 

 naturalist. No. 3, first ed. p. 29. 



VOLUTA PETROSA. Tab. 16, fig. 2. 



Subglabrous; coronated; with 8 to 10 longitudinal folds; spire 

 turrited ; base striated ; columella with two plaits. 

 Syti. V. VANUXEMI, Lea, Con. p. 173, pi. 6, /. 182. 

 Locality. Claiborrie, Alab. 

 Allied to V '. spinosa, Not abundant. No. 3, first ed. p. 29. 



OLIVA ALABAMENSIS. Tab. 16, fig. 3. 



Subfusiform ; spire elevated, acute ; whorls contracted or in- 

 dented above the suture ; aperture effuse. 



Syn. O. OKEENOUGHI, O. DUBIA, O. GKACiLis, (young) Lea, 

 Con. p. 183, pi. 6,/. 196, 197, 198. 



Locality Claiborne, Alab. 



A variable species, and remarkably abundant. A variety has 

 the spire so elevated that the aperture is little more than half the 

 length of the shell, which is unusually slender. 



O. Phillipsii, Lea, may be a variety in the very young state. 



[97] 



