EKllANTIAÏE POLYCHAEÏA OF JAPAN. Ô 



years in the Marine^ Laboratory of the Science College. Collecting 

 was also done by nie at a number of other places, viz., Suruga 

 and Izu (181)7), Isé and Shima (1808), Hokkaido and the northern 

 parts of Honshiu (summer of 1899), Boshiu and Shira.osa (winter 

 of 1899), coasts of the Inland Sea (1900), Shikoku (spring of 

 1901), Japan Sea const (summer of 1903), Kojima Gulf (winter 

 of 1900) and Hitachi (winter of 1908). 



Further, there stood at my disposal small collections made by 

 the late Prof. K. Mitsukuei during his collecting trip to Kyushiu 

 and Okinawa (1901), by Prof. S. Watase in Namerikawa on the 

 Japan Sea coast (1905), and by Prof. I. Ljima in Sakhalin (1905). 



Here 1 wish to fulfil the pleasant duty of returning my 

 thanks to all those who in one way or another rendered me aid 

 in the course of my investigations. 1 am under special obligation 

 to Profs. I. Ljima, K. Mitsukuiu and S. Watase for the many 

 ucts of sympathies and courtesies shown towards me. To Prof. 

 W. C. McInïosh (St. Andrews), Prof. Ehlers (Göttingen), Dr. W. 

 WooDwoETH (Cambridge, Mass.), Dr. C. Chossland (Suez) and to 

 a number of other specialists in foreign countries, 1 am indebted 

 for sending me specimens or their work which were useful to 

 my studies. Further 1 should not here forget to mention with 

 gratitude the name of Mr. K. Aoki, collector of the Misaki Marine 

 Laboratory, who expended for me no small labor in the acquire- 

 ment of deep-sea Polychaeta. 



Distribution of Errantiate Polychaeta in Japan. 



Of the 124 species of Errantiate Polychaeta known from the 

 Japanese waters, 84 are limited lo iliosd wtiters, while the re- 

 maining 4() s[)(.'cies are found alsi) in other parts of the world. 



