EAST COAST MARINE SHELLS 



79 



Radula very peculiar, possessing a great 

 number of lateral teeth. Operculum shin- 

 ing brown inside and with twelve whorls; 

 green portion attached to foot of animal. 



LIVONA PICA Linne. Umbilicus deep, shell 

 solid, dull black above with spots or zig- 

 zag flames of white; folds upon shell ob- 

 lique; interior of lip often edged with 

 black. Diameter 2.75 Inches, length slights 

 ly less. 



Mr. Miller of the National Museum 

 has observed this frequently in Indian 

 burying grounds on the Florida Keys. Un- 

 less the species was much more plentiful 

 during the days of the Indians, it may have 

 been brought from the Bahamas. Dead speci- 

 mens are occasionally taken in Palm Beach 

 County. 



PI. 31, Fig. 7 



West Florida; West Indies; Palm 



Beach County; Florida Keys 



GENUS CALLIOSTOMA Swainson 1840 



Shell conical, columella simple; 

 operculum thin and corneous. 



CALLIOFTOMA JUJUBINUM Gmelin. Shell solid, 

 heavy, spire elevated; umbilicus narrow and 

 funnel shaped, white inside; surface color 

 brown with white streaks, base dotted with 

 white; whorls ten. Length 33 mm. or small- 

 er. 



Dead shells are frequent on the 

 middle Florida Keys and northward on the 

 west coast to Sanibel. 



PI. 31, Fig. 8 



Cape Hatteras, North Carolina to 



the West Indies 



CALLIOSTOMA JUJUBINUM PERSPECTIVUM Philippl. 

 Broader than the preceding, fewer ribs and 

 all of them beaded; often white at the 

 periphery. Length 2S mm. 



Georgia; Florida; East Honduras 



CALLIOSTOMA ROSEOLUM Dall. Base-like 

 strings of beads, upon the spire every third 

 bead crimson, alternating with rosy threads; 

 eight whorls, first five rounded, last 

 three flattened. 



This very beautiful shell has been 

 taken in 15-200 fathoms. Altitude 9.5 mm. 



PI. 31, Fig. 12 



Off North Carolina; Straits of 



Florida; West Indies 



CALLIOSTOMA OCCIDENTALIS Migh. and Ad. 

 Shell solid, imperforate, subtranslucent; 

 raised spiral ridges light brown; suture 

 distinct; outer lip crenulated by spiral 

 ridge terminations. Length 13 mm. Depth 

 range 25-980 fathoms. 



This beautiful shell Is sometimes 

 taken in fish stomachs. 



PI. 31, Fig. 16 



Nova Scotia to south of Martha's 



Vineyard, Massachusetts 



CALLIOSTOMA EUGLYPTUM A. Adams. Shell im- 

 perforate; whorls six to five, convex; 

 about eight rows of beaded ridges between 

 periphery and suture; basal ridges about 

 ten in number and not so high as the others; 

 color white, clouded with red or brown, 

 white streaks showing through the color. 

 Length 15-20 mm. Depth range 15-50 fathoms. 



This attractive shell is not in- 

 frequently found upon the beaches adjacent 

 to Sarasota, Florida. 



PI. 31, Fig. 18 



PI. 3S, Fig. 9 



North Carolina to Florida; Gulf of 



Mexico 



GENUS SOLARIELLA S. Wood 1842 

 (LITTLE SUN) 



SOLARIELLA OBSCURA Couthouy. Shell solid, 

 small; two to three revolving ridges upon 

 whorls; axial growth lines coarse; aperture 

 round; pearly inside; umbilicus broad and 

 deep; operculum horny. Length 7 mm. Depth 

 range 6-35 fathoms . 



When the epidermis is removed the 

 surface is iridescent. The shell is not 

 Infrequently found in fish stomachs. 



PI. 31, Fig. 19 



PI. 71, Fig. 16 



Labrador to Martha's Vineyard, 



Massachusetts 



GENUS MARGARITES Leach 1819 



Shell small, rather conical, few 

 whorled; aperture rounded; lip acute; um- 

 bilicus deep. 



MARGARITES CINEREA Couthouy. An ash-colored 

 shell of pyramidal shape with five to six 

 prominent spiral ridges and numerous lesser 

 ones; umbilicus rather broad and deep; lines 

 inside aperture corresponding to external 

 ridges. Length 9 mm. Depth range 5-200 

 fathoms . 



