E. D. VAN OORT. BIRDS. 6l 



Laridae. 



Geloclielidon nilotica (Hasselquist). 



Sterna nilotica Hasselquist, Reise nach Palâst. 1762, p. 325. 



Gelochelidon anglica, Salvadori, Orn. Pap. III, 1882, p. 430. — Saunders, Cat. B. Br. M. XXV, 

 1896, p. 25. 



Coll. L.ORENTZ: 



N°. 493, (not sexed), Merauke, 6 November 1907. Iris dark brown, bill and feet black. 

 N°. 524, Q, Merauke, 25 November 1907. Iris dark brown, bill black, feet red-brown. 

 N°- 525, cT, Merauke, 25 November 1907. Iris dark brown, bill black, feet red-brown. 



The spécimens are in winter plumage and still moulting. 



Sterna dougalli Montagu. 



Sterna dougalli Montagu, Orn. Dict. Suppl. i8r3. — Salvadori, Orn. Pap. III, 1882, p. 441. — 

 Saunders, Cat. B. Br. M. XXV, 1896, p. 70. 



Coll. KOCH: 



Adult spécimen in breeding plumage, captured at sea near Merauke, 28 April 1904. 



Head preserved in spirits. Bill entirely black, 34 mm. Wing 218 mm. Notvvithstanding its 

 small size the bird surely belongs to S. dougalli. In the Leyden Muséum is a spécimen from 

 southern Europe of the same dimensions. Whether S. gracilis Gould can be upheld as a 

 species or not is not clear to me (Conf. Reichenow, Orn. Monatsber. 1896, p. 112). 



Hydrochelidon hybrida (Pallas). 



Sterna hybrida Pallas, Zoogr. Rosso-Asiat. II, 181 1, p. 338. 



Hydrochelidon hybrida, Salvadori, Orn. Pap. III, 1882, p. 427. — Saunders, Cat. B. Br. M. XXV, 

 1896, p. 10. 



Coll. KOCH: 



cf, Merauke, 15 October 1904. 

 Q, Merauke, r5 October 1904. 



Both spécimens are in winter plumage. 



Columbidae. 



Goura sclateri Salvadori. 



Goura sclateri Salvadori, Ann. Mus. Civ. Genova, IX, 1876, p. 45. — Id. Orn. Pap. III, 1882, 

 p. 199. — Id. Cat. B. Br. M. XXI, 1893, p. 622. 



Coll. LORENTZ: 



N°. 64, Q ad., Noord River, 17. May 1907. Iris wax-red, bill blue, feet dark red. 



N°. 250, ad., Bivak Island (not sexed or dated). 



N°. 256, ad., Bivak Island (not sexed or dated). 



N°. 257, ad., Bivak Island (not sexed or dated). 



N°- 397, 9 pull., Alkmaar, 8 August 1907. Iris yellow, bill and feet bluish black. 



Back, rump and sides of body are in n° 64 almost black, in conséquence of fat, with 

 which the feathers are impregnated. The fledgling has the same coloration as the adult birds. 

 Wings of adults from 350 to 365 mm. 



