ON BUCEROS CULTRATU8 FROM SIERRA LEONE. 
albse ; 4ta basi ad medium nigra, dein alba, limite coloris angulato ; 
2 mediae totse nigrse. . Alae et dorsum tota nigra. Pennae primarise 
pollicem circiter excedunt cubitales ; nulla angustata ; proportio ut 
in omnibus. Pedes fusco-pallescentes apparent. Tarsi postice et 
lateribus crebre reticulati, scutis anticis minds latis. Digiti ut in 
congeneribus ; medius tarso longior.” 
Professor Sundevall’s later observations, translated from bis letter 
of July 20, 1852, are as follows — “ In a recent visit to Upsala, I 
examined this bird somewhat more closely, and found that the sides 
of the neck are in fact naturally bare, but obliquely traversed by a 
stripe of feathers. I at first thought that the feathers had been 
denuded by some external agent, such as insects, or by the applica- 
tion of preservative ointments. The skin is in fact in very indif- 
ferent condition and badly stuffed. This bareness on the neck was 
accordingly omitted in my former description, which however was 
an error. Should you have an opportunity of publishing this recti- 
fication, it may prevent some writer or other from establishing a 
useless synonyme, as it is probable that this bird may also occur 
in the rich collections of Britain. I regret also to say, that the 
colour of the crest is erroneously described as fulvo albidns , it is 
more properly pallide Iceie rufus , which I was not aware of on the 
former occasion, as I could not conveniently clear these fine feathers 
from dust and dirt. I may therefore be excused for such an error 
in the description of an old damaged specimen which was neglected 
and dirtied.” 
In a note appended to the figure, it is added — “ V erisimiliter 
avis non plene adulta, lateribus colli ex parte mentoque phimosis. 
Facies cum plaga gutturali magna, et plaga ad latera cervicis vere 
nudis. In medio jugulo adest plica, palear parvum simulans, cujus 
verb forma liodie ob statum cutis pejorem, non bene distingui potest. 
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