HORNED GREBE. 265 



black ; the lower silvery -ivhite ; with the fore part of the neck 

 and the sides of the body red. Female similar, but somewhat 

 smaller. Young with the bill grcylsh-blue, ivith the base and 

 tip yellow ; slight occipital tufts, but no ruff; the upper parts 

 greyish-black ; the loiver silvery -white, with the sides dusky ; 

 the cheeks and throat white ; part of the fore-neck light grey. 



Male. — This species is very much inferior in size to the 

 Red-necked Grebe, and shghtly superior to Podiceps auritus, 

 from which, however, it is easily distinguished by its diffe- 

 rently-formed bill. The body is elliptical and depressed ; the 

 neck long- and slender , the head small, oblong, and com- 

 pressed. The bill is shorter than the head, straight, rather 

 stout, compressed, acute, being of the same form as that of 

 Podiceps rubricollis, though proportionally shorter. The 

 upper mandible has the dorsal line straight for half its 

 length, then declinate and convex, the nasal sinus oblong, 

 more than a third of its length, the ridge convex, gradually 

 narrowed. The lower mandible with the angle long and very 

 narrow, the dorsal line short, ascending, and straight, the 

 sides a little convex, the tip acute, the gape-line straight. 



The oesophagus is eight inches and a half in length, of the 

 uniform width of three-twelfths. The proventricular part 

 very large, being an inch and three-fourths in length, and 

 nine-twelfths in breadth ; its glandiiles very large and cylin- 

 drical. The stomach is an inch and three-fourths in length, 

 an inch and an eighth in breadth when contracted, but when 

 dilated an inch and a half. Its walls are moderately mus- 

 cular, nearly in the same degree as in the Eook, and showing 

 some appearance of a division into lateral muscles -, the ten- 

 dons roundish and defined, or elliptical when contracted. 

 There is a small pyloric lobe. The intestine is three feet five 

 inches in length, from four to two-and-a-half-twelfths in 

 Avidth ; the rectum two inches and a half; the coeca two 

 inches and a quarter, two-twelfths wide at the commence- 

 ment, enlarging to three-twelfths, and rounded at the end. 



The nostrils oblong, a twelfth and a half in length ; the 

 aperture of the eye nearly three-twelfths. The tibia is 

 feathered to within a quarter of an inch of the joint ; the 



