. Cassell's natural history. Animals; Animal behavior. NATURAL HISTORY. The shell near their bases ; the foot is oblong. Sixteen living species have been described. They inhabit deep water in the Red Sea, the Philippines, Japan, etc. Genus Kingicula. Four species are found living in the Mediterranean, India, itc. Genus Toruatina. The shell has a conspicuous spire, fusiform or cyliudrical; suture channelled, columella plaited; head of animal broad, rounded in front, with triangular tentacular lobes ; eyes at theii- base ; foot truncated in front. Tornatina is found on sandy bottoms at a dejjth
. Cassell's natural history. Animals; Animal behavior. NATURAL HISTORY. The shell near their bases ; the foot is oblong. Sixteen living species have been described. They inhabit deep water in the Red Sea, the Philippines, Japan, etc. Genus Kingicula. Four species are found living in the Mediterranean, India, itc. Genus Toruatina. The shell has a conspicuous spire, fusiform or cyliudrical; suture channelled, columella plaited; head of animal broad, rounded in front, with triangular tentacular lobes ; eyes at theii- base ; foot truncated in front. Tornatina is found on sandy bottoms at a dejjth of thirty fatlionis. Fifteen species occur, very widely distributed over the world. XXXVI.âBT'LLIT).?;. thin, convoluted, cylindrical, or globular ; spire concealed, aperture long; lip sharp, without operculum. The shell is more or less internal, being covered by the lobes of the mantle of the animal. The Bullidce are animal feeders ; the gizzard is provided with calcareous plates, which assist in the process of digestion. Genus Bvlla, the "; The shell in Bulla has no spire; the aperture is as long as the shell, and rounded at the ends ; the tentacular lobes form with the head a flattened disc, truncated in front, lobed behind. Bulla is found living from low water to thirty fathoms. Fifty widely-distributed species have been described. In the genus Scaphaiider * the characters are, shell convolute ; spire con- cealed ; aperture expanded, oblong; surface spirally striated; animal blind; head oblong; foot broad and -short; the lobes of the mantle partially envelop the shell. Five species occur recent, in Britain, Norway, the Mediterranean, ifec, living at a depth of fifty fathoms. Genus Philine. The animal is like a Slug; mantle entii-ely covering the shell ; head oblong ; blind ; foot broad. It is found living in Britain, Norway, the AVest Indies, ic. The genus Dvridium has only a rudimentary membranous shell, covered by the mantle. The other rema
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