114 Marine Shells of the Western Coast of Florida 



cross the striations; nine to eleven subcontinuous, moderately ele- 

 vated ribs, each with a sharp denticle near the suture above; one 

 or two ribs on each whorl stronger and heavier than their fellows; 

 aperture rounded; margin thickened. 



On sandbars and sandy bottoms in moderate depths. East Coast. 

 Doubtfully recorded from West Coast. 



Kpitonhini hiiiiiphrejsii (Kiener) PI. 22, fig. 146 



Alt., 17 to 22 mm. Shell white, polished; apical whorl only 

 without ribs; whorls about seven, convex, not in contact, smooth save 

 for occasional growth lines; nine or ten well-elevated, fairly thin, 

 lamellar ribs, continuous over sutures to apex; each rib with a 

 definite angle and a notch at junction with opposite rib of preceding 

 whorl; aperture rounded, with thickened marginal lamella; opercu- 

 lum pale amber; animal white; juvenile shells more pyramidal in 

 outline than adult specimens. 



On sand bars and sandy bottoms at moderate depths. 



Epitoiiiiiin hiiinplireysil (Kiener) and eggs PI. 46, fig. 320 



One specimen of this Epitonium was taken by Alice Minor in 

 Pine Island Sound in the act of laying. Each egg capsule about 1 mm. 

 in diameter, more or less angular, of a greyish-white gelatinous sub- 

 stance, strung on a fine thread, and covered with minute particles 

 of white sand. When fresh, these capsules could be slid back and 

 forth on this thread, like beads. After removal from the water they 

 crumbled like dried sponge when handled. The individual had laid 

 about 100 of these capsule beads when discovered and continued 

 laying in the aquarium, about 125 capsules in all. 



Epitonium ruplcula^oo (Kurtz) PI. 45, fig. 318 



Alt., 12 to 14 mm. Early whorls white, later whorls brownish; 

 glossy but not highly polished; apical whorls smooth; six to eight 

 contiguous whorls, moderately convex, with two spiral chestnut- 

 brown bands — the lower more deeply colored and partly concealed 

 by the suture in upper whorls; body whorl usually with elevated 

 spiral line below periphery; from 13 to 19 cordlike, subcontinuous 

 ribs, with heavier, more elevated ribs at intervals; aperture rounded, 



200 Lat., rufes, rock; incolo, to inhabit. 



