COPEPODA FROM IFALUK ATOLL 77 



Subfamily Harpacticinae* G. O. Sars, 1904: genera Harpacticus Milne- 

 Edwards, 1840 (type species Cyclops chelifer O. F. Miiller, 1776), 

 Tigriopus Norman, 1868 (tj^pe species Cyclops brevicornis O. F. 

 Miiller, 1776), Harpacticella G. O. Sars, 1908 (type species H. inopinata 

 G. O. Sars, 1908), Perissocope Brady, 1910 (type species P. typicus 

 Brady, 1910), and Discoharpacticus Noodt, 1954 (type species D. 

 mirahilis Noodt, 1954. 



Subfamily Zausodinae Lang, 1948: genera Zaus Goodsir, 1845 

 (type species Zaus spinatus Goodsir, 1845), Zausodes C. B. Wilson, 

 1932 (type species Zausodes arenicolus C. B. Wilson, 1932), and 

 Zavsojysis hang, 1934 {type species Zausopsis mirabilis hsmg, 1934). 



In the Ifaluk collection occur specimens of two species of Harpacti- 

 cus, one of which is new to science, and of a new species of Perissocope; 

 ail are described below. 



Genus Harpacticus Milne- Edwards, 1840 



Since the publication of Lang's monograph, several new forms of 

 this genus have been introduced. The following survey shows the 

 present extent of the genus. 



Females Males 



Cyclops chelifer O. F. Miiller, 1776 C. chelifer O. F. Miiller, 1776 



{ = Harpacticus helgolandicus Poppe, 1884) 

 C. brevicornis O. F. Miiller, 1776 C. brevicornis 0. F. Miiller, 1776 



( — H. crassicornis Brady and Robertson, 1876) 

 H. unireynis Kr0yer, 1842 H. u^iiremis Ej-0yer, 1842 



{ = H. chelifer var. arcticus Poppe, 1884; H, c. var. scotti Mrdzek, 1902) 

 H. gracilis Claus, 1863 H. gracilis Glaus, 1863 



{ = H. dentatus Kriczagin, 1873; H. fucicolus T. Scott, 1912; H. 

 giesbrechti Klie, 1927; H. gracilis var. orientalis Sewell, 1924; H. 

 nicaeensis var. pontica Czerniavski, 1868) 

 H. nicaeensis Claus, 1866 H. nicaeensis Claus, 1866 



( = H. aegialobates Monard, 1926; H. nicaeensis war. forlior Czerniavski, 1868) 

 H. flexus Brady and Robertson, 1873 H. fiexus Brady and Robertson, 1873 

 H. obscurus T. Scott, 1895 H. obscurus T. Scott, 1895 



H. poppei Richard, 1897 

 H. glaber Brady, 1899 



H. furcifer Giesbrecht, 1902 H. furcifer Giesbrecht, 1902 



H. Clausi A. Scott, 1909 H. Clausi A. Scott, 1909 



H. pulvinatus Brady, 1910 H. pulvinatus Brady, 1910 



{ = H. piriei T. Scott, 1912) 

 H. littoralis G. O. Sars, 1910 H. liitoralis G. O. Sars, 1910 



H. falklandi T. Scott, 1914 H. falklandi T. Scott, 1914 



H. tenellus G. O. Sars, 1920 H. tenellus G. 0. Sars, 1920 



H. superflexus Willey, 1920 H. superfiexus Willey, 1920 



H. compsonyx Monard, 1926 H. compsonyx Monard, 1926 



i — H. compsonyx var. nolesius Brian, 1928; H. c. var. nolisius Brian, 1928a) 



•Lang's name HaTpacticettinae (1944, p. 9) is illegitimate. 



