354 



FISHERY BULLETIN OF THE FISH AND WILDLIFE SERVICE 



sected and the parts mixed during study before 

 their status as new species became clear. They are 

 lierewith designated as syntypes since it is not 

 possible to separate the dissected parts of one 

 specimen from the other. Syntypes deposited in 

 United States National Museum, No. 99192. 



Remarks. — The new species is readily separated 

 from P. spinodenticula by the terminal spiniform 

 process of thoracic fusion segment IV-V, the 

 three spiniform processes of the fifth legs, and the 

 slender, almost hairlike, denticles ornamenting 

 the external spines of legs 2-4. 



LITERATURE CITED 



Brod.ski, K. a. 



1950. Calanoida of polar and far eastern seas of the 

 U.S.S.R. Tabl. anal. Fauna U.R.S.S., 35: 1-442, 

 306 text figs. (In Russian.) 



Sars, G. O. 



1900. Crustacea. Sci. Res. Norwegian North Polar 



Exped., 1893-1896. I: 1-141, 36 pis. 

 1902. An account of the Crustacea of Norway, 4. 



Copepoda Calanoida. Bergen, 171 pp., 108 pis. 

 Scott, T. 



1909a. On some new and rare Entomostraca from the 



Scottish Seas. Ann. Mag. Nat. Hist., ser. 8, 3: 



122-130, pis. 2-3. 

 1909b. On some new and rare Crustacea from Scottish 



waters. Ann. Mag. Nat. Hist., ser. 8, 4: 31-36, 



pis. 2-3. 

 Tanaka, O. 



1937. Copepods from the deep water of Suruga Bay. 



Japanese Jour. Zool, 7: 251-271, 19 figs., pis. 17-19. 

 Vervookt, W. 



1951. Plankton copepods from the Atlantic sector of 



the Antarctic. Vehr. Kon. Nederlandse Akad. v. 



Wetenschappen, Afd. Nat., Tweede Sectie, 47: 



1-156, 82 figs. 



U. S. GOVERNMENT PRINTING OFFICE 1957 O — 414302 



