PLEIOCENE FOSSILS. 137 



ACUS. — Humph. (179 7.) 

 TEREBRA.— Lam. 



ACUS UNILINEATA. 



Plate XXVIII. Fig. 1. 



Terebra unilineata, Con., Sill. Jour. Sci., Vol. 41, p. 345, pi. 11, fig. 4. 



A. testa sub-turrita; anfractuum utrisque spirali impressa linea instructis; plicis obliquis 

 inter suturam lineam que supradictam interjectis. 



Description. Shell slightly turrited, whorls each with a spiral impressed line, between 

 which and suture obliquely plicated. 



Plate XXVIII. Fig. 7. 



Locality. Sumter. Museum, College of Charleston 



ACUS CAROLI.NENSIS. 

 Plate XXVIII. Fig. 8. 



Terebra Carolinensis, Con., Sill. Jour., Vol. 41, p. 345. 



This we conclude to be a large variety of A. dislocatum ; for description of which see 

 page 125, plate xxvi, fig. 16. 



PURPURA.— Aldkovandus. 



PURPURA TRIDENTATA.— {New Specks. ) 

 Plate XXVIII. Fig. 9. 



P. testa ovali, crassa; spira brevi; anfractibus tenuiter sulcatis, spiratim striatis, trans- 

 verse costatis, superne compressis, infra suturam canalieulatis ; costis late separatis, superne 

 36 



