TOPOGRAPHY OF THE SAGAMI SEA. lo 



the Yahagl-Unc by 3Iera ly, — 2. A sliort distance ENE of 

 this ground is a phice called Haidashi, about 120 fathoms deep, 

 where the fishing for Sepia and also for Scriola quinqueradiaia 

 is extensively done at certaia seasons of the year. 



Mochiyama is a long-lining ground on the northern side of 

 the deep trough leading towards the Uraga Channel. It lies 

 nearly on the Surushiki-line and derives its name from being on 

 the line of the same name in the Mera-Sunosaki series. 



JVuma, or the ' Marsh,' so named on account of the soft 

 muddy bottom, is reached by steering on the Matswa-LlghtJiouse- 

 line and by bringing Cape Daibusa to bear nearly due east. 

 Cape Mera still lies out of sight behind Sunosaki. On the chart, 

 the locality falls nearly on the spot where tlie deep trough on 

 the north of Okinose divides into two gullies, the one directed 

 towards Tateyama Bay and the other leading into the Uraga 

 Channel. 



A short distance farther south than Numa is situated Dd- 

 hetsba, or the * Euplectella-ground,' a name given by mj^self in 

 1894 and which has since been in use among the collectors. I 

 think this ground constitutes a portion of the northern slope of 

 Okinose at a distance of 4-10 kilometers to the northwest of C. 

 Sunosaki. So far as I can state at present, it comprises the area 

 between the Ena and the Amczakl lines on the one hand and 

 between the lines ' Jlera 1 ' and ' Mera 3 ' on the other. The 

 depth varies from 7o to 160 fathoms and over. The bottom, 

 exceedingly rich in varied forms of life, is shelly. 



In the broad sea south of Okinose are situated two more 

 important fishing grounds, Homba and Gokeba. From the latter 

 I have called that entire region the Gokeba Basin. 



Homba is situated a little over 10 kilometers SW. of C. 



