PROCEEDINGS OF THE UNITED STATES NATIONAL MUSEUM 



hy (ha 



SMITHSONIAN INSTITUTION 



U. S. NATIONAL MUSEUM 

 Vol. 83 Washington : 1936 No. 2991 



PYCNOGONIDS FROM PUGET SOUND 



By Harriet I. Exline 



University of Washington, Seattle, Wash. 



Pycnogonids are not commonly dredged in Puget Sound, Wash., 

 but they are sometimes found in large numbers in certain rather 

 isolated localities.^ In the waters around the San Juan Islands, 

 which have been quite thoroughly investigated, probably only half 

 a dozen specimens have been collected' in the past 10 years. On the 

 other hand, with the investigation of the waters south of the San 

 Juans, especially in the vicinity of McNeils Island, pycnogonids have 

 been collected in large numbers among the hydroids dredged from 

 rocky bottoms. 



This paper is a report upon five species of pycnogonids, three of 

 which are new, collected in Puget Sound and neighboring waters on 

 dredging expeditions of the University of Washington's research 

 .ship Catalyst. Thanks are due Prof. T. G. Thompson, director of 

 the university's oceanographic laboratories, and to Profs. T. Kincaid, 

 J. E. Guberlet, Robert C. Miller, and M. H. Hatch, of the university's 

 zoology department, for assistance and cooperation given. 



KEY TO PTTGET SOUND SPECIES OF PYCNOGONIDS ^ 



a\ Cheliferi with well-developed chelae, which lie in front of 

 month. 

 6\ Palpi present ; first segment bearing neck, from terminal part 

 of which tl'.e palpi and cheliferi originate but which does 

 not bear eye tubercle Nymphonidae Hoek 



1 Compare with Hodgson's (1907) introduction. 



aCompUed in part from Bouvier (1913) ; Cole (1904) ; Hall (1913) ; and Schimkewitscb 

 (1913). 



53149—36 413 



