286 Zoological Society. 
gation of the scientific ornithologist. ‘The present short paper is 
limited to some species of the genus Anous, for the purpose of de- 
scribing three or four new ones, rather than aiming at anything like 
a complete monograph of even this little group. It will not, how- 
ever, detract from the interest of the paper if I give a list of the spe- 
cies with which [ am familiar, and reserve to some future time the 
completion of the subject. Upon the present occasion I shall exhibit 
five well-defined species ; a sixth, of which I am not aware that an 
example exists in the museums of this country, is figured in the 
*‘ Planches Coloriées’ of M. Temminck. ‘They are— 
1. Anous sroripus: Sterna stolida, Linn.; Gavia Fusca, Brehm ; 
Anous niger, Steph. 
2. Anovus LEUCOCAPILLUS, nov. sp. A. vertice et nuchd albis; 
loris, et partibus circumocularibus, intense nigris ; omni inferiore 
corpore alisque fuliginosis, necnon occipite, dorso, et caudd, sed 
cinereo tinctis. 
Crown of the head and nape of the neck white; lores and space 
surrounding the eye deep black ; near the posterior angle of the upper 
and lower eyelids a small patch of white; breast, all the under sur- 
face and the wings deep sooty black ; back of the neck, back and tail 
the same, slightly tinged with ash; bill black ; feet brownish black. 
Total length, 14 inches ; bill, 25; wing, 9; tail, 5; tarsi, 2; middle 
toe and nail, 14, 
Hab. North coasts of Australia. 
3. ANOUS MELANOPS, nov. sp. A. vertice et nuchd pallide ci- 
nereis ; dorso saturate griseo ; maculd ante oculum, alterdque mi- 
nore post oculum intensé nigris. 
Crown of the head and back of the neck light ash-colour, passing 
into deep grey on the mantle and back ; immediately before the eyes 
a large patch, and behind a smaller one, of jet-black; posterior half 
of the lower and a smaller space on the upper lash snow-white ; 
throat, fore-part of the neck and all the under surface deep sooty 
black ; wings and all the upper surface of the same colour, but rather 
browner ; bill black ; tarsi and toes brownish black. 
Total length, 12 to 13 inches; bill, 24; wing, 83; tail, 5; tarsi, 2; 
middle toe and nail, 14. . 
Hab. Very abundant during the breeding season on the Houtman’s 
Abrolhos, off the western coast of Australia. 
Remark.—This species, although very nearly allied to, is distinct 
from the Anous tenuirostris (Sterna tenuirostris, Temm.) of Western 
Africa, from which it may at once be distinguished by the black marks 
before and behind the eye, of which no trace is represented in M. 
Temminck’s figure in the ‘ Planches Coloriées’; neither is this con- 
spicuous mark alluded to in his description. It is just possible that 
this may be the species described by M. de la Fresnaye in Guerin’s 
Magazine, under the generic name of Procellosterna. 
4, Anous TENurIROosTRIS: Sterna tenuirosiris, Temm. Pl. Col. 202. 
5, ANOUS CINEREUS, nov. sp. A. capite, collo, et corpore inferiore 
argentato-albis ; parvd plumarum lined oculum circumeunte nigra 
