486 PKOCEEDINGS OF UNITED STATES NATIONAL MUSI AIM. 



have been captured at the surface. It agrees quite closely with the 

 crude &gme and brief description of Gould, and the species of tish (the 

 Alewife, Clupea vernalis or wstivalis Mitch.) from which his specimen 

 was obtained occurs on the New Jersey coast. The writer has never 

 seen si)ecimens collected from the Alewife. 



Mr. J. F. Whiteaves records this species doubtfully from the Gulf of 

 Saint Lawrence, in the following terms: "An Argulus, closely allied to 

 A. alos(V of Gould, if not identical with it, was taten off Pictou Island, 

 in towing nets, attached to Gasterosteus hiaculeatus f and other small 

 fishes."* Prof. S. I. Smith, who has examined one of Mr. Whiteaves' 

 specimens, regards it as probably Argulus alosce. 



CALIGINA. 



Caligus curtus Miilkjr. 



Entomostraca, p. 130, pi. 21, 1785; Smith, op. cit., part i, p. 575(281), 1873. 

 Caligus americanua Pickering and Dana, Am. Jour. Sci., vol. xxxiv, p. 225, 

 pi. 3-5, 1838; Dana, U. S. Expl. Expd., Crust, pi. 93. 



From the Cod, Gadus morrhua, Linn : 



8024. Casco Bay, Me., L. A. Lee, June 15, 1883; G ^ 9 specimens. 

 8023. Harpswell, Me., L. A. Lee, November 2, 1883; 1 $ specimen. 

 8022. Harpswell, Me., L. A. Lee, November 9, 1883; 1 9 specimen. 



8025. Cox Ledge, latitude 41° 11' 30" N., longitude 71° 02' W., U. S. Pish 

 Commission str. Albatross, July 25, 1884 ; 25 + ^ 9 specimens. 



From the Hake, Pliycis tenuis, (Mitch.) Dek. : 



8026. Oti' Martha's Vineyard, Mass., U. S. Fish Commission, October 4, 1882 j 

 5 9 specimens. 



From the Barn Door Skate, Raia Iwvis, Mitch. : 



G162. Near Station 2091, latitude 40« 01' bU" N., longitude 70= 59' W., 117 fatb., 

 U. S. Fish Commission, September 21, 1883; 1 9 specimen. 



Compared with specimens (8027) from the Cod, Durham coast, Eng- 

 land, received from the Rev. A. M. Norman. 



The specimens recorded above from Raia Icevis may possibly have been 

 living upon Cod taken at the same time, as it frequently happens that 

 when large numbers of fish are taken together by means of trawls the 

 active parasitic forms become attached to other species than those on 

 which they commonly live. The collection of Prof. L. A. Lee, made from 

 the Cod in Casco Bay, Maine, from which three of the above lots were 

 selected, contained numerous specimens collected both in the spring and 

 fall, indicating that the species is abundant in that region. It is also 

 commonly met with in the region about Cox Ledge, off the coast of 

 southern New England, and would probably be found wherever Cod 

 occur on our coast. 



* On recent deep-sea dredging operations in the Gulf of Saint Lawrence; Am. Jour 

 Sci., vii, March, 1874 (p. 8, reprint). 



