Genus— S U L I T A . 
SuLiTA Mathews, Austral Av. Eec., Vol. II., p. 123, 1915 . . Type S. bassana. 
Morus Vieillot, Analyse nouv. Ornith., p. 63, 1816 . . Type JS. bassana. 
(Not Morum Bolten, 1798.) 
Moris Forster, Synopt. Cat. Brit. Birds, p. 59, 1817 . . Type 8. bassana. 
(Note : Mis-speUing of Morus only.) 
Plancus Eeichenbach, Nat. Syst. Vogel, p. vi., 1852 . . Type 8. bassana. 
(Not Plancus Curtis 1833.) 
Also spelt — 
Plaucus Ogilvie-Grant, Cat. Birds Brit. Mus., Vol. XXVI., p. 423, 1898. 
Largest Suline birds with long Suline bill, medium thick neck, long wings, 
stout body, long tail, short legs and long toes, toti-pahnate. 
The bill is long, longer than the head, straight not hooked, but slightly 
bent at the tip which is sharp : biU rather broad at the base, but laterally 
compressed anteriorly, the culmen ridge flattened and separated from 
the laterals by a deep linear groove extending the whole length of the bill 
and showing no nostrils in the adult stage. The edges of the mandibles 
are finely serrated : the rami of the lower mandible strong and deep, enclosing 
a very narrow triangular unfeathered tracts which extends linearly a short 
way down the throat. In front of the eyes and below, bordering the gape, 
bare skin is present, but the cheeks and chin, save for the narrow strip above 
mentioned, are feathered. The neck is of medium length and thick. 
The wing is long, with pointed feathers scalloped towards their tips, 
the first primary longest, the remainder rather rapidly shortening. \ 
The tail is long, about half the length of the wing and more than twice 
the length of the culmen : it is composed of twelve feathers, being wedge- 
shaped, the two middle feathers very pointed. 
The legs are short, but comparatively long and slender ; the metatarsus 
is more than half the length of the culmen. The metatarsal covering is very 
peculiar, as fully described and figured in connection with the preceding 
genus. It should be noted that the hind toe is very short in comparison 
with the hind toe of the previous genus and the covering is exactly the 
opposite. Thus, whereas the three front toes are very regularly covered with 
scutes, the hind toe shows a reticulate face. In the genus 8ula the three 
VOL. rv. 
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