Lyssna
NRM 569821
Procelsterna caerulea skottsbergii
Lönnberg, 1920
Procelsterna caerulea skottsbergii Lönnberg, Nat. Hist. of Juan Fernandez and Easter Island, vol. III, Upsala 1920, p. 20.
= Procelsterna albivittata skottsbergii Lönnberg, 1920
Holotype ? : Male ad., Easter Island. 1. VII. 1917. K. Bäckström leg. No. 694. - Measurements of type : wing : 196 mm.; tail : 110 mm.; culmen : 27 mm.; tarsus : 24 mm.
Click on the picture for enlargement.
Foto © NRM Magnus Jäderblad