142 
LARIDJE. 
Onychoprion fuscatus serratus (Wagler). 
Sterna serrata Wagler, Natur. Syst. Amphib. p. 89 (note), 1S30 (ex 
Forster MS.): New Caledonia. 
Sterna melanura Gould, Syn. Birds Austr., App. p. 7, April 1st, 1838: New 
South Wales. 
Sterna gouldi Reiohenb&ch, Synops. Avium Icon. f. 829, 1845 : Now South 
Wales. 
Onychoprion fuscatus Icermadeci Mathews, Austral Av. Roc. vol. iii. p. 55, 
April 7th, 1916: Kerm&dec Islands, error = Sydney. 
Distr. —East Australian Seas, New Guinea, and New Caledonia. 
Onychoprion fuscatus glauerti Mathews. 
Onychoprion fuscatus glauerti Mathews, Bull. Brit. Orn. Club, 
vol, xliii, p. 14, Oct. 27th, 1922: West Australia. 
Distr .—Western Australian Seas. 
Onychoprion fuscatus oahuensis (Bioxliam). 
Sterna oahuensis Bloxham, Yoy. ‘Blonde,’ p. 251, 1826: Oahu, 
Hawaiian Islands. 
Distr. —Hawaiian Islands. West to Wake Island (breeding on 
Nihoa, Kaula, Neeker, French Frigate Shoal, Gardner, 
Laysan, Lisianski, Pearle and Hermes Reef*, Midway and 
Wake Islands. 
Genus LEUCANOUS Mathews. 
Leucanous Mathews, Birds Austr. vol. ii. p. 482, Nov. 1st, 1912. 
Type (ky original designation) : Oygis microrhyncha Saunders. 
Oygis Wagler, Isis, Nov. 1832, heft. xi. col. 1223. Typo (by monotypy) : 
Sterna Candida Gmolin. Not Gyges Bor y do St. Vincent, Ency. M<5th. p. 449 
1825. 
Alphagygi* Mathews, Austral Av. Roc. vol. ii. p. 110, Sept. 24th, 1914: new 
name for Oygis Wagler, not Gyges Bory do St. Vincent. 
Leucanous albus (Sparrman). 
Distr. —Ascension Island, Trinidad to Pacific Islands. 
[Leucanous albus albus (Sparrman). (25-149.) 
Sterna alba Sparrman, Mus. Carslson. fasc. 1, No. 11, 1786: 
restricted to Ascension Island. 
Distr. —Ascension Island. Extra-limital.] 
Leucanous albus royanus (Mathews). 
Gygis alba royana Mathews, Birds Austr. vol. ii. p. 433, Nov. 1st 
1912: Kermadec Islands. (Fig. Gould, Austr. vii. pi. 30; Math! 
pi. 119.) 
Distr. —East Australia to Kermadec Islands* 
