
CATALOGUE OF PSITTACI 11 
accidentally, on their lower parts. No. 1 is very dark green, while No. 2 is ot a 
general yellowish-green colour and has fewer red spots on its head and cheeks. In 
length both specimens are under 14°5 ‘they measure about 13) inches ; the wing of 
No. 1, is 68 inches, of No. 2, 6% inches; tail of No. 1 damaged, of No. 2, 6°5 inches ; 
tarsus of No. 1, °75; of No. 2, ‘8; bill of No. 1, 1°2, and of No. 2, 1°1 inch (meas- 
ured from tip to cere by callipers). The size increases with age, no doubt, till 
maturity ; while the dimensions of a dry skin vary much with the make up ; and how 
can it be determined when the spots are accidental, or constant, or if their absence 
be not due to immaturity? Both specimens are females (Salvadori, by the way, 
omits to say anything about the differences between the sexes), and No. 1 is from 
Guiana. C. Zewcophthalmus while it extends over a very large part of northern S. 
America, overlaps on the west, the distributional area of C. callogenys, by several 
hundred miles. 
Among the MSS. left by the 13th Lord Derby, to which, through the kindness of 
the present Earl, I have had access, I find the following notes with reference to No. 
1:—‘¢The length of this specimen, which was for some time alive in the Aviary, was 
13 inches. Latham gives to his species only 12, and to a variety full 13 creat 
It was a female. Round the knee is a garter of scarlet . . . «. It inhabits 
Guiana as far [south] as 25 degrees of latitude ; but it is more plentiful towards the 
north ; often seen in great flocks and very noisy. The head-spots do not appear till 
the second or third year; I think the latter, which is the only difference between 
the old and young; but the under wing-coverts are red in every stage, thought paler 
[in youth]. The head of my bird when I obtained it was perfectly plain. Common 
at Cayenne, and found also in the Carribbean Islands. Called at Guiana Pavouanne, 
where it flies in great numbers, frequenting savannahs and woods ; fond of the fruit 
of the Coral Bean-tree (Zrythrina corallodendron, Linn.). It is said to learn to talk 
plain ; but rarely becomes familiar through confinement.” May not C. callogenys, 
Salvad., be more mature C. leucophthalnus * 
callogenys, Salvad. ; maugei (Souanceé). 
holochlorus, Sclat. Two. Mexico. Central America. 
rubritorquis, Sclater; brevipes, Baird ; nanus (Vig.); aztec, Souancé ; 
cactorum (Neww.); eruginosus (Linn.); OCularis, Sedat. & Salvin ; 
arubensis, Hartert. 
pertinax (Linn.). Four. os, ?- 
aureus (Gm.). Five. ?. 
With reference to this species, there is the following note among the Knowsley MSS. :— 
‘«T do not know that any one has ever noticed the peculiar formation of the end of 
the fourth quill feather, which, after continuing of the usual shape till within # of 
an inch from the end, suddenly becomes truncated on the inner web, and thence to 
a blunt point with the width of a little more than 4 inch.” 
This peculiarity is not confined to, nor characteristic of all Conuri. It oceurs in 
the present species, and in C. leucophthalmus, but it is wanting in our three specimens 
of C. guarouba ; it occurs, on the other hand, in Ara nobilis, and in A. hahni ; in the 
latter, however, the fifth quill is also attenuated, while the others are squarely trun- 
cated. The shape of the fourth primary, therefore, would appear to be not altogether 
a safe generic character for Conwrus. 4 
canicularis (Linn.). One. Central America (St. John’s River). 
CONUROPSIS, Saluad. 
carolinensis (Linn.). Four. Florida (March, 1884). 
CYANOLYSEUS, Bp. 
patagonus (Vievll.). One: ¢. 
byroni, Sclat. (No. 1=C. patagonus, Vieill., Tristr., Cat, Coll, Birds, 
p. 79.) Four. @. Chili. 
GNATHOSITTACA, Cab. 
icterotis, (JJass. « Sowancé). 
HENICOGNATHUS, G.f.Gr. 
leptorhynchus (King). Three. Chili. 
The hook of the bill not perceptibly file-like, without the aid of a magnifying glass, 
