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KAMAKICHI KISHINOUYE : 
There are different types of pound-rot3 for the capture of tunnies developed 
at different part3 of our empire. But as I have stated before, a type called 
“ daiboami ”, developed near Sendai is at present the most advanced one. It 
resembles in form the madrague of the Mediterranean, but in our pound-net 
the bottom is entirely closed with netting, and there are no dividing walls. The 
movement of the fish is observed by the boat crew by signals from a watch-tower, 
on a wooden frame-work, erected from the sea-bottom, or on a precipice near by. 
At the strait of Tsugaru the watchman observes the fish by transmitted light 
from the sea, seated under a cover of matting* which partly hangs over 
the sea, from the side of his boat. In the case of the daiboami, the watchman 
takes Iris post just opposite the entrance of the pound. In other more simple 
cases the watchman is seated in the boat at the mouth. When a school of 
fish enters the pound, its entrance is closed by lifting up the sunken 
netting, connected with the bottom of the net, and the bottom is hauled over 
from one end to the other, the bunt. The depth of water at the entrance of 
the pound should be more than 15 nr. Effective pound-nets for the tunny are 
about 30 m deep at their entrance. The size of the pound-net generally in 
use is 430 m in circumference, and ca 150 nr in the longer diameter. The 
mackerel and the common seerfish are caught in pound nets for Seriola 
quinqueradiata or miscellaneous fishes. 
Classification. 
So far as I have studied, the natural affinities of fishes can not be ascer¬ 
tained from the examination of external characters only. Some authors classify 
the genus Auxis near Scomber, as the two dorsals are separated, but in reality 
these two genera are at both extremities of the phylum of the scombroid fishes. 
Order TELEOSTEI. 
Suborder Acanthopterygii. 
Family SCOMBIîIDAE (s. str.) Günther. 
Scombridae (in part), Günther, 1860. 
Scombrinae, Jordan & Evermann, 1896; Starks, 1910. 
Scombridae (in part), Boulenger, 1901; Regan, 1909. 
Scombridae, Kiskinouye, 1915. 
Body fusiform, and more or less compressed. Head pointed at the anterior 
