32 TRANSACTIONS OF THE WAGNER FREE 



Drillia acurugata n. s. 

 Plate 2, figure 12. 



Caloosahatchie beds, one specimen. 



Shell strong, with nine or ten whorls beside the smooth nucleus ; spiral 

 sculpture of fine scratches on the fasciole, sharp, usually paired, grooves on 

 the body with wider and alternately broad and narrow rounded interspaces 

 which are subnbdulous in the line of the transverse ribs ; these nodulations 

 are higher on the posterior margin of the interstitial bands, so that with the 

 canal pointing vertically the base of the shell looks like a tiled roof on a 

 cupola ; there is a moderately elevated round thread in front of the suture 

 and more or less undulated by the ends of the ribs behind it ; on the siphonal 

 fasciole there are a few fine threads ; transverse sculpture of (on the last whorl 

 fifteen) moderately elevated ribs, beginning and strongest on the shoulder of 

 the whorl and fading away anteriorly near the canal ; on the base they are 

 slightly nodulous between the spiral grooves ; anal fasciole excavated but 

 slightly undulate behind the ribs and marked by fine incremental lines ; notch 

 not deep but distinct and U-shaped ; canal short, wide ; aperture rather nar- 

 row, with a moderate callus on the pillar and no lirse on the outer lip. Max. 

 Ion. of shell 21.2 ; max. lat. 8.0 mm. 



This is nearest to D. abimdans and the preceding, but is less drawn out 

 and has a sharper and different sculpture. 



Drillia acucincta n. s. 

 Plate 2, fig. ir. 



Caloosahatchie beds ; rare. 



Shell thick and solid, short-fusiform, strongly sculptured ; whorls about 

 ten; spiral sculpture undulated by the ribs and comprising a single very small 

 thread at the suture separated by a shallow gutter from a very strong, sharp 

 and elevated waved keel ; in front of this is the wide, deep anal fasciole ; then 

 come (on the upper whorls two or three, on the last whorl eight) strong, uniform 

 sharp threads separated by wider, uniform interspaces ; then the canal with 

 rounder, smaller crowded threads ; between the primaries is fine uniform spiral 

 striation, fainter on the fasciole ; transverse sculpture of (on the last whorl 

 seven) strong, rounded ribs, broadest at the shoulder and extending to the 

 constriction behind the canal, with narrower interspaces ; there is also more or 

 less fine transverse striation caused by the strong incremental lines ; the last 

 rib is swollen and varicose ; notch short, rounded ; body-callus well developed 

 with a posterior nodule opposite the notch ; outer lip sharp, arcuate ; throat 

 without lirae ; canal short, shallow ; an umbilical chink behind the callus on 

 the pillar ; aperture narrow. Max. Ion. of shell 20.0; max. lat. 8.2 mm. 



Only two specimens of this strongly marked species were obtained from 

 the marl. 



