124 Mr. G. R. Gray on the Species 
Hirundo cinerea, Licht. 
Herse peruviana, Hartl. 
Forsteri, Hartl. 
Salangana fuciphaga, p., Bp. 
Upper surface shining black; beneath the body and rump 
ashy fuliginous; quills and tail-feathers tipped with obscure 
white; tail rather bifid. 
Length 4” 9'”, wings 4” 6’”, tail 2” 6”. 
Otaheite, where it is called “‘ Hopéa,” while in the Marquesas 
it is known as “ Kopeha.” 
The above specific description is taken from Forster’s ‘ De- 
scriptions ;? otherwise I am unacquainted with the bird. It 
differs materially from the following description of Mr. Peale. 
?Collocalia leucophea. 
Macropteryx leucopheus, Peale. 
Collocalia cinerea, Cass. 
Cypselus leucopheus, Bp. 
Collocalia fuciphaga, p., Wall. 
Upper surface pale soot-colour, beneath lighter ; crown, wings, 
and tail darkest ; webs of the greater wing-coverts undulated ; 
tail slightly forked. 
Length 5,4, wings 5-5,, tail 245 inches. 
Island of Tahiti (Otaheite). 
Until specimens are obtained, it is difficult to say whether 
these two specific descriptions can refer to the same Otaheitan 
bird. Prince Bonaparte and Mr. Wallace considered the species 
of this locality to be the same as C. nidifica ( fuciphaga) ; but I 
think this idea wants further confirmation before it can be 
adopted. 
Distribution of the Species of Collocalia. 
Indian regions .........06 Collocalia nidifica, var. 
(brevirostris, M‘Cl.) 
Malay TeSions)<5....<.ccecsns Collocalia nidifica 
(gelatinosa, Streub.??) 
Collocalia Linchi. 
(malaisia, Streub.??) 
Philippine group ......... Collocalia troglodytes. 
( philippina, Streub.??) 
Gelebes se esa-eaemeceaceraee | Collocalia nidifica, vay. 
hypoleuca? 
Molucca group ...cseeeeeee —— nidifica, var. 
spilura, 
Papuan 4, deecareenenrers — nidifica, var. 
— hypoleuca. 
Timor by - istaptaaarear sedan nidifica, var. 
neglecta. 
