45G PROCEEDINGS OF THE ACADEMY OF 



5th cervical vertebrae, the vertebra next to the 5th must be the 4th, 

 for if it were the 3d, then the 4th and 5th cervical nerves would 

 escape together, instead of the 3d and 4th, the atlas and axis, 

 from their characteristic forms, being unmistakable. As regards 

 the brachial plexus and nerves of the upper extremities, I have 

 nothing new to offer. 



Alimentary Apparatus. As regards the parotid, submaxillary, 

 and what Dr. Murie considers as sub-lingual glands, I have 

 nothing further to say ; inasmuch, however, as that writer states 

 at page 170, "that the stomach had been cut open and the con- 

 tents removed," I may mention that I found the stomach as well 

 as the intestines in both specimens more or less filled with the 

 partially digested fresh-water plants, principally Valesneria spiralis, 

 upon which the animal had been feeding, and that the compound 

 stomach of the smaller Manatee measured in its greater curvature 

 18^ inches, in its lesser curvature 15^. In reference to its divi- 

 sion into cardiac and pyloric portions, the number and shape of 

 its pouches, the oesophageal sphincter, I have nothing to add to 

 what has alread}' been described. As my smallest Manatee meas- 

 ured exactly 6 feet, while the largest of Dr. Murie's was 65 inches, 

 it was to be expected that the intestines in my specimens would be 

 longer than in his. While the small intestine in his specimen was 

 25 feet long, in mine it was 33 feet 4 inches, the average diameter 

 was about 1 inch. The csecum in the smallest specimen was 5 

 inches long, measuring from a point midway between the teats, 

 and 6 inches wide. The teats themselves exhibited the usual coni- 

 cal form, and were 5 inches in length. The large intestine in my 

 smallest specimen gave me a length of 27 feet 2 inches ; that of 

 Dr. Murie, male and female, 18 and 17 feet respectively, average 

 diameter in mine was If inches. 1 



At page 173 Dr. Murie states "that the liver of the larger spe- 

 cimen had been hacked in pieces," but that " in the younger male 

 this gland was more intact," and a few lines below observes that 

 " the entire liver has great resemblance in shape to the inflated 

 lungs of an ordinary mammal." I think this comparison a very 

 good one, not only as regards the general form but also in the 

 color, which was quite lung-like. The form of the liver differed 



1 The large intestine of the largest Manatee was filled with parasites 

 representative of the Amphistomum fabaceum of Diesing. 



