1869. ] MR. C. HORNE ON THE GREY HORNBILL. 241 
Addendum. By Dr. A. Ginruer. 
Col. Playfair has sent to the British Museum, besides the fishes 
described in the preceding paper, an example of a small Labroid fish, 
which he regarded as a new species of Labrichthys, requesting me 
to examine it also. It proves to be identical with Labrichthys cya- 
notenia of Bleeker; but it would have been difficult to recognize it 
from Bleeker’s description, as he has omitted to say that the ground- 
colour of examples preserved in spirits changes into black. Beside 
an example sent by Dr. Bleeker as L. eyanotenia, the British Mu- 
seum possesses an example of Thysanochilus ornatus of Kner. This 
I find is identical with the Zanzibar fish, although it appears really 
to be the type of a distinct genus closely allied to Labroides, for 
which the name proposed by Kner ought to be retained. The 
synonymy is :— 
THYSANOCHILUS CYANOTENIA. 
Labrichthys cyanotenia, Blkr. 
Thysanochilus ornatus, Kner. 
Samoa Islands, Flores, Zanzibar. 
Specimens in the British Museum :— 
a. 63 inches long. Samoa Islands. Type of Th. ornatus. 
6. 3; inches long. Flores? (LL. eyanotenia.) 
e. 37 inches long. Zanzibar. 
6. Notes on the Common Grey Hornbill of India (Meniceros 
bicornis). By C. Horne, F.Z.S. 
Dr. Jerdon, in his ‘Birds of India’ (vol. i. p- 244), has briefly 
sketched the habits of the Homrai, or Great Hornbill, and allusion 
is there made to its curious custom of building-up its mate in the 
hole of a tree for the purposes of incubation; and I observe that 
Mr. Wallace, in an interesting article in the ‘Intellectual Observer’ 
(June 1863), states that a similar habit has been observed in at least 
three species, including that under notice. 
Dr. Jerdon also quotes Major S. R. Tickell as having “seen this 
with his own eyes.” 
The number of observers must of necessity have been very small 
who have had the opportunity of watching the process of nidifica- 
tion; and as I only last year was so fortunate, I have deemed the 
subject worthy of a note. 
The beak, neck, and tail of this bird being long, and the wings 
comparatively short, its flight is rather undulating, accompanied by 
frequent flapping of the wings, as the bird traverses the short dis- 
tance from grove to grove in search of its favourite food, the fig of 
the Peepul tree (Ficus religiosa). Moreover, as during its flight it 
often utters its harsh note, it is a bird which attracts the notice of 
the most casual observer. It often flies in threes; and a visit from 
