The shell of the pearl-oysters is not used locally, but large quantities are exported to Europe for manufacture. Although it is the smallest and cheapest produced in the gulf, yet, owing to the enormous quantity taken for their pearls, the shell of the _mahar_ (_Margaritifera vulgaris_) constitutes the bulk of the exports. Formerly most of the shipments were made from the harbor of Lingah, hence it is known in the markets of Europe as “Lingah shell.” But in the last three or four years, much of it has been transported to Europe via Bander Abbas and Bushire. A German firm at Bahrein is extensively employed in exporting this shell, and several Indian merchants are also engaged in the trade. The total exports in 1906 amounted to 3262 tons, valued at $26,408 according to the port returns, but worth about $135,000 in Europe. Very large quantities are received in London, and over 2500 tons have been offered at auction in a single year. This shell is very small, averaging about three inches in diameter and about one and a half ounces in weight. It is the cheapest of all mother-of-pearl. The best quality sells in London for ten to twenty shillings per hundredweight, but the ordinary grade is worth usually less than nine shillings, and sometimes as low as three shillings per hundredweight. America formerly imported it, but few lots have been received since the exploitation of the Mississippi shell about fifteen years ago. The shell of the larger species of pearl-oysters in the Persian Gulf is worth considerably more than the “Lingah shell,” selling in Europe for £12 to £60 per ton, yet manufacturers consider it as furnishing only poor qualities of mother-of-pearl. Several hundred tons are exported annually. It measures six or seven inches in diameter and is used principally in making cheap grades of buttons. THE PEARL FISHERIES OF CEYLON Errors, like straws, upon the surface flow; He who would search for pearls must dive below. DRYDEN, _All for Love_, Prologue. Second in extent to those of Persia only, are the intermittent and uncertain pearl fisheries of the Gulf of Manaar. This is an arm of the Indian Ocean, from 65 to 150 miles in width, separating the island of Ceylon from the southernmost part of India. The pearl-oyster banks—known locally as paars—are situated off the northwest coast of Ceylon and also in the vicinity of Tuticorin on the Madras coast of the mainland. The Ceylon fisheries are under the control of the colonial government of the British Empire, and those of the mainland are monopolized by the Madras government. Notwithstanding the fact that they are outside of the three-mile limit established as the bound of national jurisdiction, exclusive privileges are exercised over these fisheries by the respective governments,[122] and poaching vessels are liable to seizure and punishment.