Report of a Mission to CiKaiii. 25 



(No. 9608). This is the first record of this species from Guam. 

 Hab. Tropical and sub-tropical seas. 



13. Fregata ariel Gould. Australian Tropic Bird. 



General color greenish black, a white patch on each flank. 

 Wing 19. 2-21, tail 15-17. culmen 2.8-3.3. The female is a little 

 larger, with breast and sides white, and a w^hite collar at the rear 

 of the neck. The young have the head and neck white ; a general 

 coloring of brown ; the middle of the abdomen and the flanks 

 white. Hab. Tropical Pacific and Indian Ocean. 



Order ANSERES.— Lamellirostral Swimmers. 



a'. Hind toe without membranous lobe or flap. Svib-family 

 Anatino' . 



a". Hind toe with a broad membranous flap or lobe. Sub- 

 family Fiiligulincr . 



Sub-family ANATIN^. — Fresh Water Ducks. 



Genus ANAS L,inn^us. 

 14. Anas oustaleti Salvad. Ngang. I/adrone Duck. 



Anas mistaleti, Salvad., Bui. Brit. Orn. Club, XX., p. i ; Id., Cat. B. Brit. Mus., XXVII., p. 189; 

 Hartert, Nov. Zool., V., p. 66; Oust., II., p. 49. 



This duck nests among the reedy swamps and streams of the 

 island, and is not uncommon all the year round. The specimens 

 secured were taken during the month of June. The general color 

 of the upper surface is dark browai, the feathers margined with 

 buff ; top of head dark brown wnth a slight greenish tint ; in some 

 specimens the crowm is slight!}' sprinkled with a few small buffy 

 feathers ; a pale hvAy stripe extending from base of upper man- 

 dible over the eye to back of head ; below this there is a dark 

 stripe extending from the base of the upper mandible through the 

 eye to the back of the head ; sides of the head, and neck, buffy 

 with streakings of brown ; the throat buff, not streaked ; under 

 parts not .so dark as the upper, the buffy tips of the feathers being 

 longer and wider, but not so bright ; wings a soft dark brown, the 

 secondaries more or less edged with buff ; .speculum blui.sh-purple, 

 green in some lights ; it is bordered by black, follow^ed front and 

 back by an indistinct white or buffy line, as in A. wyvilliana of 

 Hawaii ; the white markings, however, are not so prominent as in 

 the latter ; bill dusky above, with small black splotches ; the lower 

 mandible lighter (No. 9534 has bill entirely black); feet and tarsus 

 flesh color with a tint of pink ; eye light hazel. Length 19.50-20, 



