GENUS STERNA. 
Sterna. Linn. Syst. Nat. (1748). 
79. STERNA FORSTEEI. 
A,-. sA'V KCA 
The chief difference between this 
distribution of white upon the webs 
Sterna Forsteri. Nutt. Man. Vol. II. (1834). p. 274, 
species and its ally, S. Hirundo, which it very closely 
of tiie tail feathers, and the relative lengths of the 
resembles, is exhibited in the different 
outer feathers, as represented in the 
GENUS ITALIPL AN A. 
IlaUpIana. Wagl. Isis (1832.) p. 1124. 
80. HALIPLANA DISCOLOR, VoL II. Plate LV1L 
FAMILY IL— PE 0 CEL LARI I DJI. 
SUB-FAMILY DIOMEDEIN2E. 
GENUS DIOMEDEA. 
Diomedca. Linn. Syst. Nat. (1758.) p. 132. 
81. DIOMEDEA CHLOEOEHYNCIIUS. Vol. II. Plate LVIII. 
SUB-FAMILY PROCELLARINiE. 
GENUS FULMARUS. 
Futmarus. Leach, Steph. Gen. Zool. (1825). Yol. NHL p. 233. 
82. FULMARUS PACIFICUS.=FULMARUS GLACIALIS. 
Procellaiiia Pacifica. And. B. Am. Yol. YII. (1844). p. 208. Lawr. B. N. Am. (1858). p. 826. 
Closely allied to F. Glacialis, and may be considered as a local race of that species, inhabiting the Pacific coast. The differences 
between the two birds, to use the words of Dr. Coves, “ might be held as indicative of the extreme of variation of a single changeable 
type,” although he seems inclined to consider it as a species. 
GENUS THALASSOICA. 
Thalassoica. Relc/tcnb. Syst. Av. 
83. THALASSOICA GLACTALOIDES. 
Frocellaria Glactaloides. Smith. Must. S. Afric. B. Yol. I. p. 51. 
Frocellaria Tenuirostris. Aud. B, Am. Yol. VII. (1844). p. 210. 
The very slight differences existing between this bird and its near ally, the F. Glacialis, are 
presented of the head, the size of life. 
exhibited in the engraving here 
