Genus— L EPTOLOPHUS. 
Leptolophus Swainson, Zool., Ulus. Ser. II., pi. 112, 
1832-3. . . . . . . . . . . . . Type L. hollandicus. 
Calopsitta Lesson, Ulus. Zool., pi. XLIX., 1835. . . Type L. hollandicus. 
Also spelt — 
Callipsittacus Agassiz, Nomen. Zool. Ind. Univ., p. 171, 1848. 
Oalopsittacus Ramsay, Proc. Linn. Soc., N.S.W., Vol. II., p. 193, 1878. 
Small Psittaeiform birds with short bill, naked cere, crested head, long 
wings, very long wedge shaped tails and small feet. 
I have proposed for this monotypic genus, known sometimes as the 
“ Cockatoo-Parrakeet,” the family Leptolophidce. It has been constantly 
associated with the Cockatoos, apparently on account of its crest, but I can 
see no near relationship to that group. 
The bill is short with a naked prominent cere, the nostrils circular, placed 
high up on each side of culmen ridge, so that both apertures are visible from 
above ; the projecting tip is comparatively narrow, though the base of culmen 
is broad and the under mandible is short. The head bears a crest of long 
somewhat recurved narrow feathers ; the lores feathered and no noticeable 
bare eye-space. 
The wing is very long, composed of narrow feathers, with the first primary 
longest, the tips of the first two being only slightly scallopped on their inner 
webs. 
The tail is very long, being longer than the wing ; the feathers narrow 
and sharp-pointed, forming a sharp wedge, the two middle ones continuing 
much longer and becoming attenuate. The legs and feet are normal but 
very small. 
In addition to the above peculiar characters the coloration is unique 
and shows little resemblance to any of the Cockatoos, nor does it recall any 
other genus of the Order. 
I have been much puzzled attempting to account for the association of 
this genus with the Cockatoos. To my eyes it differs in every detail. It 
has a crest, it is true, but even that is differently formed from that of the 
Cockatoos. The bill is as unlike as any of these Psittaeiform bills are, but the 
cere is quite different from that of the Cockatoos. No prominent bare eye 
space is to be seen. The wing is composed of long narrow feathers with the 
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