. Cassell's natural history. Animals; Animal behavior. L-tors. In th FAjri LY 'E. family the sliell is tuvliinate, the last whorl ro â ntiicose; aperture sub-eircular, inner lip smooth am lerculum round, horny, wiih a solid convex shelly coat, â¢eat pearly Turbo marnioreiis, so often used foi antelpiece ornament, the operculum frequently weig led and ; In the [⢠a sideboard or hs several ounces. A specimen in the Shell Gallery of the British Museum weighs more than half a pound. The animal has a short proboscis; the eyes are l'^ ( ,i,i,ini iiukis. ^^ ^\^Q outer b
. Cassell's natural history. Animals; Animal behavior. L-tors. In th FAjri LY 'E. family the sliell is tuvliinate, the last whorl ro â ntiicose; aperture sub-eircular, inner lip smooth am lerculum round, horny, wiih a solid convex shelly coat, â¢eat pearly Turbo marnioreiis, so often used foi antelpiece ornament, the operculum frequently weig led and ; In the [⢠a sideboard or hs several ounces. A specimen in the Shell Gallery of the British Museum weighs more than half a pound. The animal has a short proboscis; the eyes are l'^ ( ,i,i,ini iiukis. ^^ ^\^Q outer base of the , which are long and slender; the head and sides are bordered by fringed lobes and filaments. The shells, of nearly all of tlie Turbiuida- are Ijrilliantly pearly when the epidermis and outer layer of shell have been artiticially removed. Genus Turbo* The shells of Turho have solid convex whorls, often ornamented by furrows or tuliorcles ; the aperture is large and rounded, the shell is pearly within. The outer side of the 3ioulum in some species resembles tufa deposited by a petrifying spring ; they are sometimes used f jr ornaments. The Turbos inhabit the tropical seas ; sixty species have been described. They are mostly littoral. Genus Phasiaaella, the " ; The spire of this shell is elevated, the whorls are smooth and polished, the aperture oval, the columella flattened, and the outer lip thin. " When the animals of this yenus crawl, the foot appears to be dnuUd longitudinalh' into halves, which ad vance alternately : when the i ight side moves the left remains stationan, and when this in turn is earned foi ward the other half serves as a puiiit of support. MM. Audouin and MiIik Edwards have observed that P. piiUus â¢exhibits the same mode of piogre'sion, which they compare to the amble or canter of a horse. In PhasianeUa proper the tentacles are provided with three cirrhi. In the smaller species, forming the Tricolia
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Keywords: ., bookcentury1800, bookdecade1890, booksubjecta, booksubjectanimals
