The number of persons on each boat ranges from about twelve to sixty-five, with an average for the entire fleet of about thirty-five men per boat. This includes the _sammatti_, or master, who represents the owner; the _tindal_, or pilot; the _todai_, or water-bailer, who is very necessary on these leaky craft, and who also takes charge of the food and drinking water; at times a government inspector or “boat guard”; and from five to thirty divers, with an equal number of _manducks_, or attendants.[138] The _sammattis_, _tindals_, and _todais_ are nearly all from the coast of southern India. The “boat guards” or inspectors are natives of Ceylon, and are employed by the government to prevent the fishermen from opening the oysters. Most of the _manducks_ are from the Indian coast. Of the 4991 divers employed in 1905, 2649 were Moormen or Lubbais from Kilakarai, Tondi, etc., on the Madura coast; 923 were Arabs; 424 were Erukkalampiddi Moormen from Ceylon, and the remaining 995 were Tamils from Tuticorin, Rameswaram and elsewhere on the Madras coast, Malayalans from the Malabar coast, with small numbers from other localities on the Asiatic coasts. Among the 8600 divers in 1906, were 4090 Arabs, the largest number of those people employed in recent years. In 1905 there were only 923 Arab divers, in 1904 only 238, and previously the number was much less. Some have worked on the Ceylon coast since 1887, but most of them are newly arrived from Bahrein and Kuweit, where they received their training as pearl-divers. They are very energetic and skilful fishermen, far surpassing the Tamils, coming early in the season and staying late, and working on many days when rough seas deter the Indian divers from venturing out. The Erukkalampiddi divers of Ceylon are by no means so energetic or steady in work as the Arabs, and commonly desert the fishery before the close. The Tamil divers belong to the Parawa and Kadeiyar castes. The season in the Ceylon fishery is very short, only about six or eight weeks at the most; and the holidays and storms usually reduce the number of actual working days to less than thirty. In no other pearl fishery of importance is the season less than four months in length, and in most of them it extends through more than half of the year. Owing to this restricted time, there is greater activity in the Ceylon fishery compared with the value of the output than in any other pearl fishery in the world.