122 PISCES (the fish) 



(2) The Liver. 



(a) Size? 



(b) Shape? 



(c) Position? 



(d) Number of lobes? 



(e) Gall-bladder. 



(1) Size? 



(2) Location? 



(3) Use? 



(f) Use? 



(3) The Mouth. 



(a) Size? Large or small? 



(b) Shape? 



(c) Teeth. 



(1) Number? 



(2) Arrangement? 



(3) Position? 



(4) Use? 



(d) The Tongue. 



(1) Size? 



(2) Shape? 



(3) Relation to gills and other parts? 



(4) The Gullet, a short, wide tube leading to the stomach. 



Thrust a probe down the throat of the fish about two 

 inches. 



(a) Are there any teeth in the gullet? 



(b) Are there any openings to or from the gullet? 



(5) The Stomach. 



(a) Position. 



(1) Is it in front or behind the gills? 



(2) Position with reference to dorsal fins? 



(3) With reference to pectoral fins? 



(4) To ventral fins? 



(b) Size? 



(c) Shape? 



(6) The Caeca are small, worm-like projections at the junc- 



tion of the stomach and the small intestine. They 

 are not present in all species of fishes, 

 (a) Size? 



