GASTROPODA— TURBINELLIDM. 



781 



suture; later whorls smooth, flat, with scarcely impressed suture; 

 outer lip gently rounded; body whorl abruptly constricted to 

 canal. 



Chickasawan and lower Claibornian of Alabama and Texas. 



CLXXIII. Lacinia Conrad. « 



Melongenoid shells, with body whorl marked by angulations or 

 spirals, umbilicated aperture with callous columellar lip. Eocenic. 

 570. L. alveata Conrad. (Fig. 1 141.) Eocenic. 



\ 



f 



Fig. 1140. Clavilithes kennedya- Fig. 1141. 



nus var. (After Harris.) Conrad.) 



Lacinia alveata. (After 



Large, subglobose, thick body whorl with channeled suture; 

 several angulations with flat or concave interspaces, a strong obtuse 

 carina around umbilicus; aperture, large, patulous; inner lip 

 strongly callous, reflected. 



Claibornian of Alabama. 



Family Turbinellid.e Swainson. 

 CLXXIV. Turbinella Lamarck. 

 Similar to Clavilithes but generally without shelf, and with 

 strong columellar folds; protoconch long and papillose. A dis- 



