Page:American Seashells (1954).djvu/339

Prunu77t apicimw7 Menke Common Atlantic Marginella Plate I in; figure 56g North Carolina to Florida, the Gulf States and the West Indies. V2 inch in length, glossy, with a dark nuclear whorl. Outer lip thick- ened, smooth, white, with 2 small, red-brown dots near the middle and a smaller one at the very top and very bottom. Body whorl golden to brown- ish orange with 3 subdued, wide bands of darker color. A very common, shallow-water species. About i in every 5000 specimens is sinistral. Prunum limatuluTn Conrad Boreal Marginella Figure $6i Virginia to South Carolina. V2 inch in length, similar to apiciiJimi, but with a higher spire, milky- cream color, with 3 faint, spiral bands of mauve or weak orange. Outer lip not sinuate, and is usually marked with 4 spots. Nucleus white, while in apicinu7n it is usually bright pink. Not uncommon from 18 to 132 fathoms. Marginella borealis Verrill is the same. Prunum virginiammt Conrad Virgin Marginella Figure 56h North CaroHna to west Florida and Yucatan. /4 inch in length, similar to apic{7iU777, but without spots on the thick varix; the third columella tooth is the largest; color of last whorl whitish to cream, often with a faint curdling of darker orange-cream, and with a deeper, suffused band just below the suture and at the base of the shell. Mod- erately common, 14 to ^6 fathoms. Genus Persicula Schumacher 18 17 Persicula catenata Montagu Princess Marginella Figure 56) Southeast Florida and the West Indies. /4 inch in length, glossy; apex sheared off and sealed over by a weak callus. Columella teeth 7. Inside of outer lip with about 20 to 25 small teeth. Color translucent grayish with 7 spiral rows of teardrop-shaped, opaque- white spots and with 2 very subdued, wide spiral bands of light-brown. Uncommon in shallow water to 92 fathoms. Subgenus Gihberula Swainson 1840 Persicula f/jiuuta Pfeiffer Snowflake Marginella Figure 56m South half of Florida and the AVest Indies.