The pelagic marine vertebrate work primarily involved fish. Fish were caught at depths of over a thousand fathoms by using anchored vertical sets and horizontal free vehicle gear. The free vehicle sets are carried to the bottom by disposable anchors which are connected to the gear by a magnesium link. The magnesium link is milled to such a size that it will oxidize completely in about 12 hours, freeing the fishing gear. The gear is buoyed and upon release from the anchors floats to the surface. Trawls, both deep- and mid-water, were also used in sampling fish populations. Deep-water fishing was done daily. The very nature of this fishing keeps the ship in the same area for extended periods. Much time was spent waiting for free vehicle gear to surface and searching for it. The search patterns were not charted because of repeated traversing of the same water. Thus, linear mileages were not recorded. Densities have been figured on a temporal basis rather than the usual birds/linear mile. I do not believe these density figures are indicative of actual populations, as continual ship activity in a restricted area, over an extended period of time, probably drives birds from the area. These data should therefore be viewed for their qualitative value, placing restrictions on quantitative interpretations. Arctic Loon Gavia arctica 14 + 7 Fourteen birds were seen off the Coronado Islands on 5 May. These birds were all flying low over the water in a northwesterly direction. Two flocks contained 13 and 7 birds and one bird was seen flying alone. All were migrating. Dr. Carl L. Hubbs has observed the birds in migration in this area often and states that the birds are always flying northwest. He believes that the birds fly up the coast until they reach the Coronado Islands area, then head northwest, flying on through the Channel Islands and reaching land again at Point Conception where they then fly northward along the coast. Black-footed Albatross Diomedea nigripes This species was seen on most days. They were not abundant, and chumming failed to attract any concentrations. We attempted unsuccessfully to catch albatross for banding, using baited hook and line. Since much time was spent on station and trawling at slow speeds, it is likely that fewer albatross were attracted to the ship. Also, since we worked for extended periods in the same general locality some of the birds may have been recorded on different days. On 29 May Black-footed Albatross were observed feeding on red crabs (Pleuroncodes planiceps). These crabs apparently came to the surface with the scattering layer the night before and remained near the surface until mid-morning. On 27 April one bird followed the ship briefly. The ship was traveling about one and one-half miles offshore of Guadalupe Island. The bird did not continue to follow when the ship put into Northeast Bay, Guadalupe Island.