396 NORTH AMERICAN FAUNA 61, FISH AND WILDLIFE SERVICE 



and the second run, much smaller, was from August 26 to Septem- 

 ber 6. The run varies greatly in size from year to year. In 1938, 

 there were 165 tons of bloaters and 2,000 barrels (250 pounds to 

 a barrel) of gibbed herring prepared at Dutch Harbor. The 

 gibbed, or Scotch-cured, herring are cleaned and are salted only 

 once. All herring are taken by gill nets near Dutch Harbor. 

 Gibbed herring sold in Seattle for about $15 a barrel. 



Cyclopteridae, the members of which family are commonly 

 known as lumpsuckers, are characterized by a round sucking disk 

 on the ventral surface of the body. By this means they attach 

 to rocks and sometimes to kelp in the region of wave action along- 

 shore. They are able to attach or release themselves almost 

 instantly. The only adult taken was found on the beach in poor 

 condition. The larvae of Elephantichthys copeianus? were taken 

 at two dredge stations. These were handsome little fish about 25 

 millimeters long, tan colored with pale-blue "spectacles" between 

 the eyes. 



Figure 17. — Alaska cod, Gadus macrocephalus, False Pass, August 5, 1938. 



Gadus macrocephalus, the common Alaska cod, was taken with 

 hook and line at nearly every anchorage (fig. 17). In deep water 

 near Atka Island on August 10 the ship's crew caught more than 

 80 fish in half a day. Most of them were later salted down. All 

 specimens taken during the summer were wormy, although not 

 unfit for eating. Stomach contents from three localities contained 

 masses of the nematode Contracaecum clavatum. In one stomach, 

 a female Cystidicola sp. was found. The mesenteries of the cod 

 were usually knotted with masses of cysts of the nematode Porro- 



