400 Mr. 8. B. Wilson on three undescribed Species 
LV.—On three undescribed Species of the Genus Hemi- 
gnathus, Lichtenstein. By Scorr B. WILson, F.Z.S. 
As I believe that my investigation of the species of the above- 
named genus, specimens of which are so rare in collections, 
may have some interest for the ornithologists who, both 
in Europe and America, are studying the subject, I beg 
leave to lay the results before the public. 
In the island of Hawaii I found two species—a large and a 
small one. The former is unquestionably the ‘ Hook-billed 
Green Creeper” of Latham (Synops. i. p. 703), on which 
Gmelin founded his Certhia obscura, as by favour of Mr. T. 
J. Moore and the other authorities of the Liverpool Museum 
I have been able to examine the type specimen, which, form- 
ing lot 4750 at the sale of the Leverian Museum, whence 
Latham described it, was bought by the then Lord Stanley, 
and at his death in 1851, when Earl of Derby, it passed into 
the Liverpool Museum. This specimen was accurately 
figured by Vieillot (Ois. Dorés, pl. lili.), and the species will 
stand as /7. obscurus (Gmelin). 
The second and smaller species from the island of Hawaii 
agrees so accurately with the figure and description of Hete- 
rorhynchus olivaceus, Lafresnaye (Mag. Zool. 1839, pl. x. 5 
Rev. Zool. 1840, p. 321), that though I have not seen the 
type specimen, no doubt can exist on the subject. By those 
who do not acknowledge the genus Heterorhynchus, on behalf of 
which something is to be said, this species will be recognized 
as Hemignathus olivaceus (Latresnaye). 
On the island of Kauai I met with two other species— 
again a large anda small one. One of these has been already 
mentioned by Dr. Stejneger (Proc. U.S. Nat. Mus. 1887, 
p- 93), who, though noticing some difference in it, referred it 
to LHemignathus obscurus (Gmelin). The dimensions given 
by Dr. Stejneger show that it is the larger of the two which 
he had before him ; and it is indeed at once distinguishable 
from the true obscurus by its larger size (wing 86 to 83 
millim., tarsus 26 to 25), its longer bill (chord 64 to 60°5 
millim.), very distinct black lores, and generally brighter 
coloration. ‘This species I propose to name, in honour of Dr. 
Stejneger, to whom the first known examples were sent, 
Stejnegert. The second and smaller species from Kauai has 
in colour and size a general resemblance to HZ. ol’vaceus from 
Hawaii ; but its lower mandible, instead of being straight as 
in that species, follows the curve of the upper. This I pro- 
