410 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 
LIST OF HYPERIID AMPHIPODS. 
~% 
The numbers denote the relative abundance of the various species 
in the Plankton hauls, November, 1912—May, 1913, except those in 
italics, which give the absolute numbers of individuals in the hauls 
in question. | 
3 =| 
Bhi Seek foooe ne 
at GE Gere 
° ° i 5 
Stations 2 iS Ke Mi 
10,047 20 12 1 
10,048 15 25 1 
10,049 15 12 1 
10,050 30 2 1 
10,051 4 
10,052 25 3 i 
10,053 30 5 i 
10,054 20 2 
10,055 1 
No hyperiids were taken in any of the hauls made by Mr. Welsh. 
LisT OF EUPHAUSIIDS, identified by H. J. Hansen. 
The Euphausiacea collected in the Gulf of Maine, during the sum- 
mer of 1912 and winter of 1912-1913, have been identified by Dr. 
H. J. Hansen. They belong to six species:— Meganyctrphanes nor- 
vegica Sars, Thysanoessa inermis Kroyer, Thysanoessa raschi Sars, 
Thysanoessa longicaudata Kroyer, Thysanoessa gregaria G. O. Sars, 
and Nematoscelis megalops G. O. Sars, all so well known that only — 
the geographic aspect of their occurrence need be touched on here. | 
But this is considerable, because, so far as I can learn, only two 
euphausiids Thysanoessa inermis, and Meganyctiphanes norvegica, 
