TURRIDAE 185 



Similar egg capsules have been found on siphons of Corbula at 

 Sanibel. 



Genus KURTZIELLA Dall, 1918 

 KurtzielL'i atrostyla^" (Dall) PI. 38, fig. 266 



Alt., 7; spire, 4.1 mm. Shell opaque, milky white with brown 

 stain on columella, brown sutural band, often brown coloration on 

 outer lip, occasional brown specimens; six whorls, keeled at shoul- 

 der; eight or ten axial ribs and fine spiral striations; aperture and 

 short anterior canal slightly oblique; outer lip with shallow, round- 

 ed posterior notch; no operculum. 



A littoral species. Occasionally taken at two to four fathoms. 



Kurtziella ceriiiella3i2 (Dall) PI. 38, fig. 267 



Alt., 10.5; spire, 5.5 mm. Shell slender; spire elongate, taper- 

 ing; waxy-cream color or yellowish; thin epidermis; seven or 

 eight whorls, shoulder sloping to acute keel; sutures distinct, wavy; 

 six or seven axial ribs; spiral sculpture of fine threads over entire 

 surface; aperture almost semilunar; outer lip with shallow notch at 

 angle of whorl; anterior canal extremely short; no operculum. 



Most common and abundant turrid of Florida's West Coast. 

 Shallow water to moderate depths on sandy bottom. Shells often 

 studded with egg capsules of some small gasteropod mollusk — prob- 

 ably Olivella pusilla. 



Kurtziella perryae Bartsch and Rehder PI. 38, fig. 268 



Shell minute, elongate-turreted, milk-white with a creamy tinge. The 

 first nuclear turn is well rounded, smooth. This is followed by a turn 

 marked by closely spaced axial riblets and four spiral cords, the latter 

 rendering the axial riblets roundly nodulose at their junction. The third 

 cord is a little anterior to the middle and forms an angle. Postnuclear 

 whorls appressed at the summit, marked by very strong axial ribs, which 

 become enfeebled toward the summit and extend anteriorly on the last 

 whorl to the columella. These ribs are more strongly pronounced on the 

 middle of the turns, which they angulate. Of these ribs, twelve occur on 

 the first, eleven on the second, ten on the third, fourth, and fifth, and five 

 on the last half of the last turn. The ribs are only about half as wide as 

 the spaces that separate them. In addition to these strong ribs, slender, 

 very regular, closely spaced axial threads are present, which are crossed 

 by spiral threads of equal strength, the junctions of which produce slender 



3*^ Lat., atro, from ater, black; Gr., stylos, a pillar. 

 3*2 Lat, dim. of cerinus, wax-colored. 



