Zoological Society. 493 



black, slightly tipped with white ; tail black, margined with grey and 

 largely tipped with white ; all the under surface greyish- brown ; 

 under tail-coverts white ; irides, bill and feet black. 



Total length, 18 inches; bill, 2f ; wing, 11|; tail, 9; tarsi, 2^. 



Hab. Western Australia. 



Strepera melanoptera. Strep, corpore superiore cauddque nigris ; 

 corpore inferiore fusco-nigro, abdomine griseo tincto ; crisso rec- 

 tricibusque, duabus intermediis exceptis, albis. 



All the upper surface, wings and tail black ; under surface brown- 

 ish-black, tinged with grey on the abdomen ; under tail-coverts and 

 tips of all but the two centre tail-feathers vrhite ; irides yellow ; bill 

 and feet black. 



Total length, 19 inches; bill, 2; wing, 11 ; tail, 9; tarsi, 2|. 



Hab. South Australia. 



Remark. — Distinguished from all other species by the total absence 

 of any white mark on the wings. 



Gallinula tenebrosa. Gal. griseo-nigra ; dorso scapularibusque 

 nigris ; crisso medio nigro ad latera albo. 



General plumage greyish- black, with the exception of the back and 

 scapularies, which are deep brown, and the primaries and tail, which 

 are nearly pure black ; under tail-coverts black in the centre and 

 pure white on the sides ; frontal plate orange ; base of the bill blood- 

 red ; tip greenish yellow ; above the knee a garter of yellow and 

 scarlet ; joints of the legs and feet green ; under surface of the legs 

 and feet olive ; the sides of the tarsi and frontal plates of the toes 

 yellow ; frontal plates of the tarsi yellow ; those nearest the knee 

 stained with scarlet ; irides olive. 



Total length, 15 inches; bill, 1 J ; wing, 8; tail, 3; tarsi, 2^, 



Hab. South Australia. 



Remark. — The alcove is the description of a female ; the male is 

 supposed to be larger in size, and to differ in being of a paler hue 

 beneath, and in having the whole of the upper surface brown. 



Sylochelidon strenuus. Syl.fronte vertice et nuchd nitide nigris ; 

 dorso alis cauddque pallide cinereo-griseis ; reliquis plumis albis. 



Forehead, crown and, nape deep glossy black ; back, wings and tail 

 pale ashy grey, becoming lighter on the tail and deepening into dark 

 grey on the primaries, the shafts of which are white ; remainder of 

 the plumage pure white ; irides black ; bill scarlet, stained with 

 yellow on the sides and tip, and with greenish yellow near the ex- 

 tremity. 



Total length, 20^ inches; bill, 4 ; wing, 16| ; tail, 6^; tarsi, 2. 



Hab. Southern coasts of Australia. 



Remark. — The above is the description of the plumage of the 

 breeding season ; at other times the head instead of being wholly 

 black is mottled with black and white. 



Sula personata. Sul. alba ; tectricibus alarum majoribus, secun- 

 dariis, tertialibus, rectricibus lateralibus, et rectricum intermedi- 

 arum apicibus, intense fuscis. 



The whole of the plumage pure white, with the exception of the 



