R.Clapp Catalog - 1964 Oct. 18 Arumenii Is.,Bikar Atoll, Marshall Is. 600 Rattus exulans - Male - TL- 255 mm., HF - 27 mm. T - 134 mm. 601 Rattus exulans Oct. 27 Bogengoa Is, Erikub Atoll, Marshall Is. 603 Crocethia abba - Female (30133) Bill black, feet and legs black; iris, dark brown. Ovary 2 mm., Weight 47 gm. Oct. 26 Aradojairen Is, Erikub Atoll, Marshall Is. 604 Sterna sumatrana - Male (30127) Bill black; feet and legs black; iris dark brown; Testes 5 mm. Weight 84 gm. Brood patches present. 605 Sterna sumatrana - Female (30128) Bill black; feet and legs black; iris dark brown. Ovary 12 mm. Weight 77 gm. Brood patches present. 606 Sterna sumatrana - Female (30125) Bill black; feet and legs black; iris dark brown. Ovary 8 mm. Weight 77 gm. Oct. 27 Aradojairik Is, Erikub Atoäl, Marshall Is. 607 Sula leucogaster - Female (30136) Feet and legs pale yellowish green; bill facial skin, and gular pouch pale yellowish green; iris gray flecked with brown; black spot before eye. Ovary 30 mm. Lg. Ovum 4 mm. Weight 1271 gm. (Breeding bird) Oct. 25 Aradojairen Is, Erikub Atoäl, Marshall Is. 608 Heteroscelus incanum - Male (30118) Feet and legs dull yellowish green; bill black; iris dark brown. Testes 2 mm. Wt. 117 gm. 609 Heteroscelus incanum - Male (30119) As in 30118. Testes 1.5 mm. Weight 105 gm.