EXPLANATION OF PLATES. 635 



Plate 33. 



Ergasilus labracis Kroyer. 



Copied Kroyer (Naturli. Tidssk., II, 1863, PL 11, fig. 2 a-e). Right figure 

 female in lateral view and middle figure same sex in dorsal view. Left figure 

 lower view of abdomen of male. 



Plate 34- 

 Cyclops serrulatus Fischer. 



Original. Left figure lateral view, median figure ventral view and right 

 figure dorsal view. Tributary of Crosswicks Creek near Trenton, N. J. 

 August, 1912. H. W. Fowler. 



Plate 35- 

 Calanus finmarchicus (Gunner). 



Original. Left figure dorsal view, right figure lateral view. Great Bay, 

 N. J. July 3d, 1912. W. B. Davis and H. W. Fowler. 



Plate 2,(>- 

 Argulus alosae Gould. 



Copied Wilson (Proc. U. S. Nat. Mus., XXV, 1903, PI. 12). Left figure 

 dorsal view of female, middle figure ventral view of female, and right figure 

 ventral view of abdominal region of male. 



Plate 37- 

 Argulus trilineatus C. B. Wilson. 



Original. Left figure dorsal view, right figure ventral view. From Caras- 

 siits aiiritus in aquaria in Philadelphia, Pa. W. T. Innes, Jr. 



Plate 38- 

 Argulus versicolor C. B. Wilson. 



Original. Left figure dorsal view, right figure ventral view. From Abrajiiis 

 crysolcucas taken in the Pocomoke River at Willards, Md. May. 191 2. T. 

 D. Keim and H. W. Fowler. 



Pr.ATE 39. 

 Lepas anserifera Linnaeus. 



Photograph. Four upper figures, of which upper from Smith's Island. Vir- 

 ginia, and the three lower detached ones from Asbury Park, N. J. All the 

 figures on this plate reduced. Specimens alcoholic. 



Conchoderma virgata (Spengler). 



Photograph. Three lower figures. Of these middle parasitic on Penuella 

 aiosa (from a Mola viola) without data, others from Wood's Holl, Mass. 

 U. S. F. Com. Specimens alcoholic. 



