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The Little Beak Shells

Genus ROSTELLARIA, Lam.

Shell spindle-shaped, with elevated spire of many smooth whorls, the last prolonged into a slender anterior canal; posterior canal extends from the top of the aperture, outer lip thickened, dilated, set with teeth; operculum not saw-toothed. Animals similar to Strombus in structure and habits, though usually timid and suspicious, whereas the conchs are bold. They inhabit the China Sea, the Red Sea and the Philippine region, in deep water. Tryon describes ten species. Type, R. curta, Sby.

The comparative variability of certain of these shells has made a strong demand for them among collectors. A little one, R. powisii, Petit, rare but by no means the most beautiful species, brought 200 francs at a sale in 1877.

R. fusus, Linn., with the most graceful spindle shape, is the prize of the genus. It has a stem as long as its spire and six short teeth on the outer lip. Length, 6 to 8 inches.

Habitat.--China.