AVIF-A rX A O F LAY SAN, ETC. 



311 



tail deep brown, bordered with yellowish green. Under wing-coverts dull white. The bill is 

 brown, somewhat horn-brown, but not blackish as in all the other species of Hemignathus. 



« It is not probable that the bill and feet are faded, as in specimens of JSeterorhynchus 

 lucidus collected and stuffed at the same time and kept side by side with R. ellisicmus, the bill 

 and feet are still blackish and not brown. 



" Wing 3'3 inches, tail 2*1, culmen 2 '24, bill from gape to tip in a straight line 187, 

 mandible from mental apex to tip 1*57 inches." 



We are not aware of any other specimens in Europe or elsewhere ! Mr. Wilson was 

 told by a native that this bird still existed on Oahu. But, although the dense forests of parts 

 of Oahu make collecting most difficult, the failure of such collectors as Wilson, Palmer, 

 Perkins, and an employe of the Honolulu Museum to come across it, does not speak in favour 

 of the theory that this bird is still living. 



My Plate is delineated from a drawing made of the type in Berlin. 



Key to the Adult Males of the Genus Hemignathus. 



A. Bill extremely long, culmen more than 2'5 inches long : habitat Kauai H. procerus. 



B. Bill of medium length, culmen less than 25 inches, but more than 2. 



a. A conspicuous yellow superciliary line, bill brown : habitat Oahu H. ellisianus. 



b. No distinct yellow superciliary line, bill black : habitat Lanai H. lanaiensis. 



C. Bill much smaller, culmen less than 2 inches long, altogether smaller : habitat Hawaii . H. obscurus. 



HETERORHYNCHUS LUCIDUS {Licht.). 

 Antea, p. 105 j Wilson & Evans, Aves Hawaii, pt. v. plate & text (1894). 



I am now giving a Plate of this evidently extinct species. Eig. 1 represents the adult 

 male in the Paris Museum, fig. 2 the one in Leyden, and fig. 3 the Frankfort Museum 

 specimen. 



In the synonymy given by Mr. Wilson he left out Heterorhynchus olwaceus, which I 

 had shown belonged here. I said [antea, p. 106) that I had examined the type of 

 Lafresnaye's species ; but it was not for that reason that I placed it as a synonym of 

 R. lucidus, but because the plates, both in the ' Magasin de Zoologie 1 and in the ' Voyage 

 of the Venus ' showed most distinctly the curved (not straight) mandible and the superciliary 

 line. The plates are quite recognizable. Mr. Wilson has finally (Introduction to ' Aves 

 Hawaii.' p. xxii, in part vii. 1899) admitted the correctness of my statements and accepted 

 the name //. wilsoni for the Hawaiian form. He has seen the actual type out of Lafresnaye's 

 collection, now in Boston. However, Lafresnaye's specimen w^as only a duplicate of the 

 collection made by Neboux during the 'Venus' expedition. This is not mentioned in 

 Lafresnaye's original description, but positively stated by Neboux in Ttev. Zool. 1840, p. 289. 

 Thus the specimens in the Paris Museum are apparently cotypes, and marked " types " 

 according to the unfortunate habit of marking all original specimens as " types," which is 

 still in use among some continental zoologists. 



