REPORT ON CEPHALOPODS COLLECTED DURING 1906 BY 

 THE UNITED STATES BUREAU OF FISHERIES STEAIVIER 

 "ALBATROSS" IN THE NORTHWESTERN PACIFIC. 



By Madoka Sasaki, 



Of the Fishery Institute, Hokkaido Imperial University. 



INTRODUCTION. 



The zoological collection made by tlie United vStates Bureau of 

 Fisheries steamer Alhatross during her cruise in the northwestern 

 Pacific in 1906 comprised a large number of specimens of cephalo- 

 pods. This collection throws much light on the faunal knowledge 

 of that region. The specimens were placed by the aforesaid bureau 

 under the charge of Prof. S. Watase, of the. Imperial LTniversity of 

 Tok3"o, who subsequently handed them over to the writer, who in the 

 meantime, while a student in that university, had l)egun the mono- 

 graphic study of cephalopods. It is a pleasure to express my thanks 

 to Professor Watase for man}' courtesies during the progress of the 

 work. 



The specimens intrusted to me have been duh' examined and are 

 referred to sixty species belonging to twenty-nine genera. Of the 

 sixty species eighteen are new to science. These are listed as follows: 



Watasella nigra. Polypus alatus. 



Stauroteuthis albatrossi. Polypus tenuipulvinus. 



Polypus gl'iber. Polypus salchrosus. 



Polypus ahruptus. Polypus validus. 



Polypus ochotensis. Rossia molliceUa. 



Polypus tsugarensis. Rossia hipapillata. 



Polypus pustulosus. Sepia carinata. 



Polypus spinosus. Gonatopsis octopedatus. 



Polypus yendoi. Crystalloteuthis heringiana. 



Besides these there are two new varieties, namely. Polypus macro- 

 pus, var. minor, and Sepia Jcohiensis, var. albatrossi, which are sepa- 

 rated from their typical forms for convenience sake, pending a more 

 accurate study based on a greater number of specimens than is 

 accessible to me at present. Watasella nigra in the above list is 



Proceedings U. S. National Museum. Vol. 57— No. 2310. 



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