B.OUND-TAILED MANATI, 
£nities there undoubtedly are, but there are 
also dissimilarities; and, perhaps, it would be 
difficult to decide which have the stron2:est 
claims. Very little actual knowledge is pos- 
sessed bv the most enlightened naturalists, re- 
specting the various species or varieties of these 
difFerent inhabitants of the deep, where few 
opportunities of discrimination occur; and 
this, added to the near approach which most 
of them make to some quadrupeds, suffici- 
ently accounts for the confusion into which so 
many able writers have fallen. 
In the LInnsan system, the Alanati is deno- 
minated Trichechus Manatus, or the Fish- 
Tailed Walrus ; and the several species, a3 
they are esteemed by Pennantj form only so 
many varieties. 
The species of Manati described by Pen- 
nant are as follows: 1. the Whale-Tailed 
Manati — 2. the Round-Tailed Manali — 3. the 
Guiana Manati ; with a variety, called the 
Manati Clusii, or Manati of Clusius — 4. the 
Oronoko Manati — and, 6. the Sea- Ape. The 
Whale-Tailed Manati, he informs us, is of an. 
enormous size, being soirAetimes twenty-eight 
ieet 
