No. 6.] THE AUSTRAL AVIAN RECORD 119 



two or more subspecies will later be recognised from 

 this group. I propose to name this subspecies 

 Fregata minor aldabrensis, subsp., 



selecting Alddbra as my type locality. 



From Christmas Island, Indian Ocean, Dr. C. W. 

 Andrews gave me specimens of the two species he found 

 breeding there and which had been identified by Dr. 

 Sharpe as Fregata aquila and Fregata ariel. The former 

 is a distinct new species, hereafter described, while the 

 latter is a ,form of Fregata minor. It is very small, 

 however, and the female only measures culmen 

 107 mm., with wing 599 mm. 



I name this form 



Fregata minor listeri, subsp. n. I 



In the South Mid Pacific probably quite a distinct 

 form exists which will bear the name 



Fregata minor PALMERSTONi(Gmelin.; 



This cannot be accurately defined as no series are 

 available from the type locality of Gmelin's Pelecanus 

 palmer stoni, but odd specimens from adjacent localities 

 do not exactly agree with birds from other places. 



Montrouzier's Tachypetes chambeyroni may be here 

 temporarily associated. There is nothing in the de- 

 scription that would make me place Fregata aquila with 

 Fregata ariel as is done in the Catalogue of Birds in the 

 British Museum. 



Schauinsland collected a fine series of birds at Laysan 

 for the Hon. W. Rothschild, and these are easily dis- 

 tinguished by many points and will bear the name \j,»^l~^ 



Fregata minor strumosa Hartert. o^,^\{J-'^y^ 



Rothschild's beautiful series from the Galapagos 

 Archipelago prove that two very distinct forms live * 

 there, as pointed out by Ridgway but disputed by 

 Rothschild and Hartert. 



Ridgway's Fregata aquila is the bird breeding on the 

 Southern Islands, while his Fregata aquila minor is the 

 bird breeding on Culpepper and Wenman Islands. 

 These are exactly differentiated as Ridgway \\rote, 



