FISHING OSPREY. 241 



a simicircular elevated line or ridge, and a smaller line pro- 

 ceeding from it. The intestine is extremely elongated, slender, 

 and arranged into numerous convolutions, forming in all forty- 

 six folds. The duodenum forms a loop in the usual manner, 

 and is not convoluted as in the Ichthyaeti. Its widest part 

 measures three twelfths of an inch across, and the narrowest 

 part of the intestine toward the coeca scarcely two-twelfths. 

 The coeca are five inches distant from the rectum, four-twelfths 

 long, three-twelfths in width. The rectum has at first a width 

 of seven-twelfths ; and the cloaca is globular, and one and a 

 half inch in diameter. The intestine from the pylorus to the 

 anus measures eleven feet three inches ; the oesophagus and 

 stomach eleven and a half inches ; the alimentary tube in all 

 twelve feet two and a half inches. The lobes of the liver are 

 less unequal than usual, one being three inches long, the other 

 three twelfths shorter; the gall-bladder oblong, and ten twelfths 

 in length. Plate XXI, Fig. 1. 



The nostrils are oblong, oblique, lateral ; the eyes of mode- 

 rate size ; the eyelids with three series of short ciliary bristles. 

 There is no projecting lachrymal bone. Aperture of the ear 

 small and circular. The legs are of moderate length, but ex- 

 tremely stout ; the tibia long and very muscular ; the tarsus 

 very short, very thick, feathered anteriorly halfway down, 

 covered all round with thick scales, of which the anterior are 

 larger and flattened, those behind more prominent, on the 

 outer side conical. The toes are extremely stout, scutellate 

 toward the end, the first having five, the second five, the third 

 four, the fourth four entire scutella ; the rest of the upper parts 

 with thick flat scales, the sides and lower surfaces with smaller 

 roundish scales, those on the large pads beneath conical, rigid, 

 and acute. There is a cluster of nine large pointed papillae on 

 the inner side of the outer toe at the end, and a similar but 

 smaller cluster on the opposite side of the third or middle toe. 

 The hind toe is very short, and has considerable motion late- 

 rally ; the fourth or outer largest, and reversible so as to form 

 a right angle with the third, which is considerably longer, the 

 second or inner beins shorter than the outer. The claws are 

 large, well curved, compressed, rounded above and beneath, 



