^ inch in diameter, planorboid, nuclear whorls not visible; narrowly umbilicate on both sides. Whorls keeled only near the aperture. Body whorl near the aperture and the keel are corneous. No apertural slit. Operculum small, trigonal and lamellar. A common pelagic species, and the only one reported from our waters.
Family CARINARIIDAE Genus Camiaria Lamarck 1801
Carinaria lamarcki Peron and Lesueur Lamarck's Carinaria Figure 42
Atlantic warm waters; pelagic.
Body up to 10 inches in length, tissues transparent; proboscis large and purple. Shell K the size of the animal, cap-shaped, very thin, fragile and transparent. Its apex is hooked. The shell is borne on top of the animal. This is a valuable collector's item, and in former years it brought fancy prices. Formerly known as C. mediterrafiea Lamarck and erroneously attributed under that name to Peron and Lesueur.
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Figure 42. The heteropod, Carinaria lamarcki Peron and Lesueur, lives a pelagic life in warm seas. The animal mav reach a length of 10 inches. It lives in an upside down position at the surface.
Super jainily NATICACEA Family NATICIDAE Subfamily POLINICINAE Genus Polijiices Montfort 1810
Polinices lacteiis Guilding Milk Moon-shell Plate 111
North Carolina to southeast Florida and the West Indies.
% to 1^/2 inches in length, glossy, milk-white, umbilicus deep with its upper portion covered over by the heavy callus of the parietal wall. Peri- ostracum thin, smooth, yellowish. Operculum, corneous, thin, transparent, either wine-red or amber. Common in sandy, intertidal areas. P. uberinus
