Agrihan (also called Agrigan, Arijan, Francisco Xavier, Granger, Gregus, Grigan, San Francisco Javier).
Agiguan (also called Agaigan, Agiigan, Agiguan, Agigwan, Aguigan, Aguijan, Aguyan, Guigan, Saint Ange, Santa Angel).
Alamagan (also called Almagan, Aramagan, Concepcion).
Anatahan (also called Anatagen, Anatajen, Anataxan, San Joaquin).
Asuncion (also called Asonson, Assongsong, Assumption).
Guam (also called Guaham, Guahan).
Guguan (also called Guguwan, Guugwan, Piedras, San Felipe, St. Philippe).
Maug (also called Mang, Mangs, Mauga, Monjas, Mougu, Saint Laurent, San Lorenzo, Tunas).
Medinilla (also called Bade, Bird, Farallon de Medinilla, Rocher).
Pagan (also called Pagon, Paygan, St. Ignace, San Ignacio).
Rota (also called Luta, St. Anne, Santa Ana, Sarpan, Satpana, Suta, Zarpane).
Saipan (also called (Saepan, St. Joseph, San José, Saypan, Siepan, Serpan, Seypan).
Sarigan (also called St. Charles, San Carlos, Sariguan, Sarigwan).
Tinian (also called Bona Vista, Buenavista, Temean, Tenian, Tiniamou).
Uracas (also called Guy Rock, Farallon de Pájaros, Pájaros, Urakasu).
Fig. 2. The Mariana Islands.
Palau Islands
Fig. 3. The Palau Islands.
The Palau Islands (also called Arrecifos, Palaos, Paleu, Pally, Paloc, Pannog, Parao, Pelew) consist of 8 large islands, 18 smaller islands, and a large number of minute islets, all enclosed in a single reef system. The northern islands (Babelthuap and Koror) are of volcanic origin; the southern islands (Peleliu and others) are of coralline formation. Angaur, to the south of Peleliu, may be included with the Palau Archipelago. From the standpoint of the avian zoogeography, the coral islands or atolls of Kayangel, Merir, Pulo Anna, Sonsorol, and Tobi are also included. The principal islands, shown in [figure 3], are listed below: