National Geographic : 1967 Mar
and keel over dead almost immediately after cap ture. Later we learned to keep the big squids in running sea water for a few minutes until they quieted down, before transferring them to the tanks. Sisson reported some success in keeping his tanks free of ink by making the squids eject the murky brown liquid before he placed them in a clean con tainer. "But the odd one," he said, "always had just one more squirt left." We had other troubles. One night I had just put a large squid into the corner photo tank and left the lab, when Bob called me back. "Which tank did you put that squid into?" he asked. "The corner one," I said. "Why?" "Look at it now." There was the corner tank, camera pointed at its side, floodlights shining into the water-empty. Beside it, swimming peacefully around in another tank and staring at us with large, unblinking eyes, was our subject. Bob laughed. "Just as you went out, he decided he didn't like your tank, gave a quick shot with his jet, and leaped over into the other." Philosophically, Sisson moved his setup to the other tank. On the night of the mass explosion, we examined one of the dying captives. In the lab, the whitish KODACHROME 3 TIMESLIFE-SIZE BYROBERTF. SISSON(C) N.G.S . Bug-eyed bubble, a baby squid carries internal organs encased in a thin transpar ent mantle. Loose-fitting to admit water, the mantle opens and closes behind the head. Liver of this Liocranchiareinhardti shows red. Waving tentacles search for food. Eight arms will develop later. EKTACHROME(C N.G.S. Squid's-eye view of a squid's world: Through a lens dissected from a laboratory specimen, Robert Sisson photographed a Loligo swimming above two companions resting on the floor of a tank. The 1/8-inch lens, from an eye amazingly similar to man's, scans 180 degrees horizontally. Maharaja of the deep, a sail squid wears lights like jewels. His several hundred photophores shine through color filters, and he can turn his lights off and on. Eyes in two sizes equip Histio teuthis for different situations, the author be lieves. He uses the eye on the right when feeding near the surface; the other, bulging four times big ger, lets in more light in the gloom of the depths. KODACHROME LIFE-SIZE BYPETERM. DAVID© N.G.S .