SALMONOIDE.E. 201 



the gizzard of a fowl, and consists of a thin peritonseal coat ; a thick firm semi-transparent 

 one, which, when boiled, separates into layers ; a thinner, but firmer and almost cartilaginous 

 one; and, lastly, an inner membrane of a grey colour and spongy substance, differing mate- 

 rially, in appearance, from the lining of the upper stomach : its folds are nearly obsolete. 

 The pylorus is in the fundus of the stomach, which touches the upper extremity of the abdo- 

 men. From this a slender intestine, with thin coats and a few internal longitudinal folds, 

 descends to the anus. It* is encircled, at its commencement, by clustered cceca, which con- 

 tinue to be inserted, on one side, for two-thirds of its length. There are in all about one 

 hundred and fifty of them, an inch long, of a conical form, and filled with a yellowish mucus. 

 The lower part of the intestine is furnished internally with circular folds, or valvules conniventes, 

 but a small portion next the anus is smooth. The liver is small, obtusely triangular, and 

 without lobes ; it lies anterior to the oesophagus, and posterior to the caeca and intestine. The 

 gall-duct, which has remarkably thick coats, terminates in the intestine about half an inch 

 below the pylorus. The air-bladder extends the whole length of the abdomen, and is con- 

 nected with the upper part of the stomach by a pretty wide tube. 



Dimensions. 



Inches. Lines. Inches. Lines. 



Length of alimentary canal from gullet to Length of whole alimentary canal from gullet 



lower stomach ..... 5 to anus ...... 19 6 



„ lower stomach ... 2 6 ,, fish from snout to base of central 



„ upper intestine with smooth lining 9 caudal rays ..... 16 



„ lower ditto with circular rugae . 3 



[76.] 2. Salmo (Coregonus) tullibee. (Richardson.) The Tullibee. 



Ottonneebees. Ckee Indians. Tullibee. Fur Traders. 



This fish is very generally diffused through the waters of the fur countries, but 

 nowhere is it taken in such numbers as the Attihawmeg. The fishermen know it 

 at once, but as I was a novice in ichthyological pursuits when the recent fish were 

 before me, I failed in detecting discriminating external characters, and my pre- 

 pared specimens having gone to decay, the deficiency cannot now be supplied. In 

 the appendix to the narrative of Sir John Franklin's First Journey, I referred the 

 Tullibee doubtfully to the Coregonus Artedi of Le Sueur ; but on re-considering 

 the description of that fish, it appears to be decidedly unlike the former in its 

 pointed snout and round scales. The Tullibee differs from the Attihawmeg in 

 having a much thinner stomach and a smaller number of caeca, yet its food and 

 general habits are the same with those of that fish. It is much inferior as an 



2d 



