﻿141 Florida Oligocene Shells 23 



prominent varix ; spiral sculpture (on the last whorl) of about 

 ten raised threads, the upper six extending over nearly the 

 whole whorl and forming nodular intersections with the ribs, the 

 remaining four closely crowded at the base of the whorl, penulti- 

 mate whorl with three spiral threads ; outer lip of aperture with 

 six lirations inside ; columella with a slight callus. 



Length of shell 4.5 ; of last whorl 2.5; of aperture 1; 

 greatest width 2 mm. 



Oligocene of the Chipola marls, Bailey's Ferry, Florida. 



Named in honor of Mr. Arthur Veatch, now of the United 

 States Geological Survey, who some years ago ably aided Pro- 

 fessor Harris in making the collection of Florida Oligocene fossils 

 for Cornell University. 



Cornell University collection. 



A sty r is Irajectionis, n. s. 

 ~ PI. VI. fig. 1. 



Shell small, smooth and shining, seven-whorled ; spiral 

 sculpture consisting only of about ten impressed lines at the base 

 of the shell ; outer lip thickened near the margin so as to form a 

 slight varix and with about half a dozen denticulate lirae within ; 

 columella with a moderate callus. Length of shell 6 ; greatest 

 width 2.5 mm. 



Chipola marls, Bailey's Ferry, Florida. 



Cornell University collection. 



Astyris Dalli, n. s. 

 PL VI, fig. 2. 



Shell very slender, smooth, acute, nine-whorled, the two 

 nuclear whorls being very smooth and shining ; spiral sculpture 

 consisting only of about ten to fifteen impressed lines at the base 

 of the shell ; transverse sculpture limited to a varix like thicken- 

 ing near the edge of the outer lip ; margin of outer lip sinuous, 

 with nine or ten denticulate lirae within ; columella with a slight 

 callus. Length of shell 12 ; greatest width 4 mm. 



Chipola marls, Bailey's Ferry, Florida. 



Cornell University collection. 



