164 billetin: museum of comparative zoology. 



as liigh. All of the islands are wooded and have a total population of 

 several thousands. The Alb.\tross anchored at Uala 14-17 February, 

 where the following birds were collected: — Ptilopus poiiapcnsw, 

 Metabolns rugensis, Myiagra oceanica, Conopoderas syrinx, Zostcrops 

 snnperi owstom, Aplonis opaca, and Myzomcia rubrata ruhrata. 

 Water birds secured were Xycticorax caledonicus, Ixobrychus sitirnsis 

 moorci (new), Pluvialis dominicus fulvus, Arcnaria intcrprcs oahuensis, 

 and Ihicractitis brevipes. 



The adjacent islands of the lagoon were not visited. One of them. 

 Ruk, had eleven species of land birds when reported upon in 1900. 



The Ladroxe Isl.\nds. Guam, visited 21 to 25 February, was 

 the last island at which birds were collected during the cruise. This 

 island is partly volcanic and partly elevated coralliferous limestone. 

 It is twenty-two miles in length, forested, and has a height of 1,000 

 feet. The only land bird collected was the quail {Excalfacforia chinen- 

 sis Uneata) introduced from the Philippines. The water birds ob- 

 tained were Phaeopus phaeopus variegatus, GaUhuda chloropus, and 

 Ixobryvhus sinensis bryani. Twenty -se^'en species of land birds are 

 known to the island of Guam. The expedition proceeded northward 

 through the Ladrone or Mariana Islands, arriving at Yokohoma 4 

 March, 1900. 



Part 2. — Annotated List of the Species. By Alexander Wetmore. 



The collection of birds made during the cruise of the Albatross 

 in Polynesia during the winter of 1899-1900 numbers 391 skins, 

 fourteen alcoholic specimens, and one skeleton. These specimens 

 represent ninety-three distinct forms, of which fourteen are here 

 described for the first time.^ Collections of birds were made on 

 thirty-three islands some of which were little known and were visited 

 by an ornithologist for the first time. The entire collection has 

 considerable general interest, as a number of species were collected 

 at their type-localities, and in several cases important series of such 

 birds were secured. In working out this rich material I have been 

 under deep obligation to Dr. C. W. Richmond, Associate Curator of 

 Birds in the U. S. X. M., for advice and assistance in matters pertain- 

 ing to bibliography and nomenclature. At one time Dr. Richmond 

 had planned to publish on this collection personally but was prevented 



' Three new species of CoUocalia collected during this cruise of the Albatross were described 

 by Oberholser in 1906, see p. 200-201. 



