PROCEEDINGS 



OF THE 



WASHINGTON ACADEMY OF SCIENCES 



Vol. II, pp. 111-133. August 20, 1900. 



PAPERS FROiAI THE HARRIMAN ALASKA 

 EXPEDITION. 



II. 



HARRIMANIA MACULOSA, A NEW GENUS AND 

 SPECIES OF ENTEROPNEUSTA FROM ALASKA, 

 WITH SPECIAL REGARD TO THE CHAR- 

 ACTER OF ITS NOTOCHORD. 



By Wm. E. Ritter. . 



The preparation of my report on the Enteropneusta of the 

 Pacific Coast of Nortli America, which is to form a part of the 

 scientific results of the Harriman Alaska Expedition, has, owing 

 to the unexpected richness of the material, proved a consider- 

 ably greater task than I had anticipated. Since it has been im- 

 possible to complete the work at as early a date as was orig- 

 inally hoped, and since one of the five or six new species is of 

 more than ordinary interest, it seems desirable that a brief ac- 

 count of it should be published without delay. 



This species is the type of a new and very distinct genus 

 v.hich I take great pleasure in dedicating to Mr. E. H. Harri- 

 man. I do this not merely in acknowledgment of the fact that 

 he was the patron of the expedition, but also in recognition of the 

 way his own personal management contributed to its scientific 

 success. 



In its superficial characters Harriniania maculosa resembles 

 Balanoglossus kupj'eri v. Willemoes-Suhm and B. canadensis 

 Spengel more closely than it does any other known species. It 

 may be known by the diagnosis following. 



Proc. Wash. Acad. Sci., August, 1900. (m) 



