184 



EXPEDITION TO POINT UAKKONY. ALASKA. 



srilMAKY. 



It is ;i>i;ux'iit from this list* that four families greatly preponderate, namely tbe Pteiro<oM'd, 

 BuccinMa; \<i1i<-itln\ and Trorltitln; as represented by J[>-<j>-i(a. AVhile the party doubtless 

 obtained a full representation of species resident at or m-ar the station itself, it should lie added 

 that the inollusk fauna of the Arctic basin adjacent i.s considerably larger than the number of 

 species included in the preceding list. There is practically but one fauna from Nunivak Island 

 northward to the Polar region, though there are a number of species which do not occupy the 

 whole area, especially littoral forms. 



The writer has been .{fathering material for twenty years toward a fauual description of this 

 region and hopes before long to be able to prepare it for publication, a task which, from the press 

 lire of other duties, has hitherto been unavoidably deferred. 



Towards such a complete description such contributions as this, made by the party under the 

 command of Lieut. P. IT. Kay, are particularly valuable, and to Mr. Murdoch and his companions, 

 who went into practical exile for two years for the benefit of science, the sincere recognition and 

 hearty thanks of all naturalists are unquestionably due. 



' in i In- IM. species obtained at Cape Smythe, Point Barrow, mid near the station Vjjluami, all within a iliort 

 dif>tiir<> "four another, arc included under tlio heading "Point ]>IUTO\V." 



