Shell of the Week: The Striate Caecum
Another small (and neglected) local species of the family Caecidae (the caecums), Caecum striatum de Folin, 1868 has a tubular shell that rarely reaches beyond 2.5 mm (about 0.1 inch). The shell is sometimes covered with a thin, light-brown periostracum. The shell sculpture in this species shows a number of lengthwise, delicate lines. The shell aperture (opening) is devoid of any ornaments or rings. The shell "plug" is blunt, hemispherical. The shell color is white. The image