198 



PROCEEDINGS OF THE ACADEMY OF 



[April, 



brownish white — almost pure white — band on the rump, its feathers 

 with slightly though not very noticeably dusky shafts; sides of head 

 clove brown, the lores darker, with white bases ; sides of neck somewhat 

 lighter brown; lower surface brownish gray, darkest on chin and the 

 longest lower tail-coverts, decidedly paler, even almost whitish, on 

 lower abdomen and anal region; lining of wing clove brown. 



From Collocalia francica spodiopygia, to which this form has hereto- 

 fore been referred, it differs in considerably more greenish glossy upper 

 surface, much more whitish rump, and paler posterior lower parts. 

 It has the most whitish rump of any subspecies of C. francica, and 

 seems furthermore to be one of the best marked of these. It is another 

 of the novelties brought back by Mr. C. H. Townsend from his Pacific 

 cruise in 1899-1900, and was obtained in only the Tonga group — on 

 Eua, Vavau and Nine Islands. 



Measurements of these specimens are as follows: 



Collocalia francica terraereginae (Ramsay). 



Cypselus terrce-regince Ramsay, Proc. Zool. Soc. Lond., 1874, p. 601. 

 Collocalia infuscata Salvadori, Atti R. Accad. Sci. Torino, XV, 1880, p. 348 

 (Ternate Island, Molucca Islands). 



Chars, subsp. — Similar to Collocalia francica francica, but somewhat 

 smaller; upper surface darker; posterior lower parts more deeply 

 colored, imparting thus a more uniform appearance to the ventral 

 surface; feathers of the light rump band with more conspicuously 

 blackish shaft lines. 



Wing, 110-111; tail, 48-53; exposed culmen, 5; tarsus, 8.7-10 mm. 



Type locality. — Cardwell, Rockingham Bay, Queensland, Australia. 



Geographical distribution. — Northern Queensland and southern New 

 Guinea to Jampea Island, Ternate Island and probably also other 

 islands of the Molucca group. 



This race may be distinguished from Collocalia francica spodiopygia 

 chiefly by its much smaller size, more conspicuously blackish shaft 



" Type. 



