. The Ibis . reat differences areat once observable. That of A. forsteri (fig. 4<, p. 334) is verymuch longer and broader, and generally larger. Some of the principal measurements of these bones of thetwo species are given in the subjoined table :— A. forsteri. A. inches. Total length of the skull from the point of the beak to the base of the occiput 70 75 Extreme width of the skull between the squa-mosals 2-6 2-4 Mr. P. L. Sclater on the Emperor Penguin. 333 A. fosteri. A. Distance from tlie point of the bill to the proxi-mal end of the nas
. The Ibis . reat differences areat once observable. That of A. forsteri (fig. 4<, p. 334) is verymuch longer and broader, and generally larger. Some of the principal measurements of these bones of thetwo species are given in the subjoined table :— A. forsteri. A. inches. Total length of the skull from the point of the beak to the base of the occiput 70 75 Extreme width of the skull between the squa-mosals 2-6 2-4 Mr. P. L. Sclater on the Emperor Penguin. 333 A. fosteri. A. Distance from tlie point of the bill to the proxi-mal end of the nasal bones 3*7 Extreme length of the carina sterni in a straight line along the ventral margin 10-9 Extreme length of sternum from the rostral pro-cess to the middle point of the posterior border 8o ■ The remaining bones show nearly as great discrepancies on comparison ; in fact^ it the skeletons of the two species were only known as fossils, they might well have been i^eferrcd to different genera. Fio-. Llpper view df-^teriiiiiu of A. jXunaiiti, reduced -4. 334 Mr. P. L. Sclnter on the Emperor Penguin. Fitr. 4.
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Keywords: ., bookcentury1800, bookdecade1850, booksubjectbirds, bookyear1859
