Page:American Seashells (1954).djvu/323

iVi inches in length, heavy, squat, with its whorls shouldered by about 9 large nodules. Characterized by its semi-glossy, chestnut-brown color with a faint, narrow spiral band of whitish at the base of the shell which terminates into a small, distinct spine on the outer lip. Columella with 4 weak folds at the base. Aperture yellowish tan within. Common among rocks at low tide. Alias L. cingulifera Lamarck. Leucozonia ocellata Gmelin White-spotted Latirus Plate 1 1 e West coast of Florida and the West Indies. I inch in length, 73 as wide, squat and heavy. Color dark-brown to blackish with a row of about 8 large, white, rounded nodules at the periphery and about 3 or 4 spiral rows of smaller white squares on the base of the shell. Base of columella with 3 small folds. Apex usually worn white. A common intertidal species found under rocks. Genus Latirus Montfort 18 10 Latirus mcgintyi Pilsbry McGinty's Latirus Plate lib Southeast Florida. /4 to 2/4 inches in length, elongate, heavy, and with about 10 whorls. Color cream with a soHd yellow-brown periostracum. Aperture bright yellow. Umbilicus variable, but usually funnel-shaped. Each whorl with 8 low, rounded ribs which are noduled by 2 spiral cords in the upper whorls and 4 cords on the wide periphery of the last whorl. Numerous fine spiral threads present. Lower columella with 2 weak folds. Uncommon. Latirus infundibulum Gmelin Brown-lined Latirus Plate 1 1 a Florida Keys and the West Indies. 3 inches in length, heavy, resembling a Fusinus in shape, but character- ized by the 3 weak folds on the columella, the light-tan to light-brown shell which bears small, darker brown, wavy, glossy, smooth spiral cords. 7 to 8 strong axial nodules per whorl. Umbilicus imperfect, sometimes funnel- shaped. Moderately common in the West Indies, rare in Florida. Latirus brevicaudatus Reeve Short-tailed Latirus Plate I if Lower Florida Keys and the West Indies. I to 2% inches in length, rather broad, with a short siphonal canal, with 8 to 9 rounded, long axial ribs crossed by numerous spiral threads. Color