COPEPODS OF THE WOODS HOLE REGION 



89 



pelagic species in Woods Hole Harbor, It is an in-shore form and 

 apparently does not go out beyond the continental shelf, and is 

 usually most abundant near the surface. 



CENTROPAGES HAMATUS (LiUjeborg) 



Figure 61 



Ichthyophorba Tiamata Lilljeboeg, De crustaceis ex ordinibus tribus: Cladocera, 



Ostracoda et Copepoda, in Scania occurrentibus, p. 185, pis. 21, 26, 1853. 

 Centropages hamatus Sabs, Crustacea of Norway, vol. 4, p. 76, pi. 52, 1902. 



Occurrence. — Eighteen males and females in a surface tow on 

 Georges Bank, September, 1874; 2 females in surface tow in Woods 

 Hole Harbor, September, 1881 ; 20 males and females in surface tow 

 at Menemsha Bight, Marthas Vineyard, August, 1923, 



FiGDEB 61. — Centropages hamatus: a, Male, dorsal ; t, female, dor- 

 sal ; c, female, abdomen, ventral ; d, male, first antenna ; e, male, 

 right fifth leg; f, female, fifth leg. (From W. M. Wheeler) 



Distribution. — North Atlantic (Cleve) ; British Isles (Brady, 

 Thompson, Lubbock) ; Helgoland (Claus) ; Kattegat (LiUjeborg) ; 

 Baltic Sea (Nordquist) ; Black Sea (Grebnitzky) ; North Sea 

 (Mobius, Cleve) ; coast of Norway (Sars) ; Nova Scotia (Wright) ; 

 Narragansett Bay (Williams) ; Gulf of Maine (Bigelow) ; Woods 

 Hole (Wheeler, Fish); Chesapeake Bay (Wilson). 



Color. — As it darts among the other transparent species it looks 

 decidedly white and is thus easily distinguished from the rest. It is, 

 however, banded in color; the tip of the head is transparent, then 

 follows a whitish band extending nearly half the entire length of 

 the body, then colorless or translucent for half the remaining length, 

 and the posterior end is white again, or in one specimen brownish. 



