August 22, 1964 (cont.) Fish were collected in the old channel that used to flow between Biren and Airy islets. A causeway now blocks the channel. The Fish-Tox was put out in between the islets on a shallow reef on the lagoon side. move much. The tide was stock so the water mass did not Only a limited kill of fish resulted. The excessive silt in the water made pickup very difficult for visibility was very poor. Two large bone fish were collected. Bonham: “Eman Island was the site of several tests. Col- lections of Coenobita were made from under Messerschmidia trees. On the ocean reef flat were sponges, sea slugs, Dolobrifera Grapsus, corals, (not collected), and many hundreds of rock oysters, Eriphia, Tridacna crocea, Actinopygia mauritiana, the surge channels. No Holothuria. at the edge of Growth on this narrow reef flat seemed fairly good in spite of evidence of siltation. dence of Ocypode on land, but not seen." Evi- Photos taken from tower. At the east end of the chain at Arji islet Grapsus and Coenobita (under Mess. trees) An expedition of Palumbo, abundant. Lowman, McClin and Lewis went to the east end of Arji islet and took six Tridacna gigas 2-2.5 feet. Three of the clams were used by Lowman for kidney material and three were sampled by Bonham for radioassay.