391 
53. Larus scoressu, Trail, Mem. Wern. Soc. iv. p. 514 (cum 
fig.) 1823.—L. hematorhynchus, King ; Jard. and Selb. Ill. Orn. 
pl. 106. 
Falkland Islands (Pach). 
54, Larus ROSEIVENTRIS (Gould).—L. glaucotes, Meyen, Nov. 
Act.1834, p.115 (?).-—Larus maculipennis, Licht. (?).—Gavia rosei- 
ventris, Gould, P. Z.S. 1859, p. 97. 
Falkland Islands (Abbott and Pack). 
_ There is no doubt, I think, that Mr. Gould’s type-specimen, now 
in the British Museum, is in immature (or winter) plumage. The 
adult bird in full breeding-dress, of which Capt. Pack has forwarded 
some splendid specimens, has a full dark-brown cap, and the whole 
of the white plumage deeply tinged with a most beautiful rose-colour. 
The egg is described by Mr. Gould, /. c. 
55. Srerna cassinit, Sclater.—Sterna meridionalis, Cassin, Zool. 
U.S. Expl. Exp. p. 385, nec Brehm.—Sterna antarctica, Peale, nec 
Lesson, nec Forster.—‘‘Sterna wilsoni et S. hirundo, ex Arm. Merid.,” 
auct. 
Falkland Islands (Pack, Abbott). 
This Tern is stated by Mr. Cassin and Mr. Peale to be different 
from S. wilsoni of the United States. “The voice, size, and general 
habits are so like those of its northern prototypes, S. arctica and S. 
hirundo, that it requires comparison to be convinced of the specific 
difference. But the intensely scarlet bill, which has not a black 
point like that of the northern bird, the lighter-coloured mantle, and 
the length of the tarsus destroy their identity.’’ 
Unfortunately both Mr. Cassin and Mr. Peale have proposed 
names for this bird which have been previously used in’ the same 
group. 
Fam. PELECANIDE. 
56. PHALACROCORAX CARUNCULATUS (Gm.); Bp. Consp. ii. 
p. 176.—P. imperialis, King.—P. cirrhatus, G. R. Gray. 
Falkland Islands (Pack, Abbott). 
57. PHALACROCORAX MAGELLANICUS (Gm.); Bp. Consp. ii. 
p- 177.—P. erythrops, King. __ 
Falkland Islands (Pack, Abdot¢). 
9. On a New Species or FisH BELONGING TO THE GENUS 
Paecrus. By Dr. ALBERT GUNTHER. 
(Pisces, Pl. XI.) 
Pacrus socacu, Lowe. (PI. XI.) 
D. =. Ast. L. lat.\65. «L. transv. 7/17. 
Ma) 
The greatest depth of the body is below the fourth dorsal spine, 
where it is one-third of the total length ; the length of the head is 
