654 



]',IUI>S or THE CALAPAGOS ARCHIPELAGO— lilDG WAY. vol.xix. 



OCEANODROMA CRYPTOLEUCURA, Ridgway. 



Cymovhorea cryplohiicKra, KiDdWAY, rroe. L'. S. Nat. Mus., 1\', March 29, 1882, p. 

 ^37 (Waiinea Kaui, .Siuulwich Islands; U. S. Nat. Mus.); in IJaird. Brewer & 

 Kidgway'.s Water Bird.s N. Amer., II, 1884, i>. 406. 



Oceanodroma cryptoleuciira, Kiixjway, Man. N. Aiuer. Birds, 1887, j). 71. — ToWN- 

 sKXi), Bull. Mus. Conip. Zool., XXV^II, 1895, p. 125 (Wenman Island, Gala- 

 pagos; •* vryi>tolei(Cinra '"). 



asceutai.nf;i> kanmie of the (IKXUS OCKAXODROMA, KKICIIKNBACII, 1\ thk 

 GALAPA(;OS ARCHIPELAGO. 



1. — Oceanodroma crypfoleunira, Kidgway. 

 (Also, ''off Albemarle Island,'' Townsend.) 



Slpecific characters. — Similar to 0. Jcucorhoa, Vieillot, but tail shorter 

 and much less forked, tarsus shorter, louger upper tail-coverts broadly 

 tipped with black, and tail feathers exteusively white basally. Wiug-, 

 5.75-6.35; tail, 2.75-3, forked for 0.15-0.30; culmeu, 0.55-O.Gl ; tarsus, 

 0.80-0.92; middle toe, 0.77-0.90. 



Range. — Hawaiian Archii)elago; Galapagos Archipelago: Wenman 

 Island and off Albemarle Island (Townsendj. 



