13 Jan. on board the "Golden Bean" off Baja Calif. Sea. Mex. at the symposium. Don't need my jacket (that do my sweatshirt) anymore. The 1st session got out at 11:30 and went back for a while but only 1 & 2 Black Petrels and an adult Hermit Gull with the boat. Got a brief glimpse of a white-winged petrel (with Dr. Bowman, possibly 4 or 2 others) before 9 A.M. Went to the bow but very little there. Shortly after lunch no petrel obvious. Saw a Hammerhead shark at least 12 (up to 18) feet long resting on the surface. About 1 went back & watched the petrels. 6-8 Black Petrels plus one a 2 smaller dark and a same-sized white-rumped petrel, which followed the boat for 15+ minutes. It is about 3/4-7/8 size of the Black Petrels, same color with even tail panel; the wing beat is deep but faster and the bird glides less; rise-crosses like the black petrel. The Blacks land very infrequently and always briefly & with the wings up. About 1:45 another 2 Frigate bird when by, paying no attention to the boat. The Hermit gull is staying way off from the boat. Went down for the second symposium but it got much to list in the hold, so came up after the 2nd paper & formed out from Dr.Bowman that there was a conspicuous macroplankton to be seen. Went out to see a small 5-7" long red crustacean with long red claws (Pleuroncodes)