J. Wyman on the Ne-hoo-le. 45 
its apex ; and include between them a prominent rounded ridge. 
The following table gives the comparative measurements of two 
canines from the upper jaw of the Engé-ena, and one from thaty 
of the Chimpanzée. The figures in the first column relate to 
the tooth described above ; those in the second and third to the 
measurements given by Prof. Owen,* the measurements being in 
inches and lines. 
T. gorilla. T. niger. 
Panyih, Ps Seong Fp eats apy : 
Length of crown, 1:34 eo < : 01te" =" 
Breadth of base, 10 0-10. ‘ 07 . 
Thickness of do. 0-73 0°73". , 0-53 
The following note from Dr. G. A. Perkins to the author, dated 
Salem, Oct. 15, 1849, confirms the statements made Sa 
age, in his description of the habits of the Engé-ena, as to its fe- 
rocity and the fact of its attacking human beings. 
"The two crania were received from a person on board a ves- 
sel trading in the Gaboon and Danger Rivers, W. Africa. The 
were obtained from the natives on the banks of the latter, by 
whom they had been preserved as trophies. [rom the gentle- 
man who gave them to me, I learned that the killing of one of 
these animals was by no means a common occurrence. He de- 
scribes the animal as being remarkably ferocious, even attacking 
the natives when found alone in the forests, and in one instance 
which fell under his observation, horribly mutilating a man who 
was out in the woods felling trees to burn. His shouts brought 
to his aid several other natives, who after a severe contest, suc- 
ceeded in killing the Engé-ena. ‘The man was afterwards in the 
habit of exhibiting himself to foreigners who visited the river 
and of receiving charity from them.” 
—= 
Arr. IX.— Notice of the cranium of the Ne-hoo-le, a new species of 
Manatee (Manatus nasulus) from W, Africa; by Jerrries 
Wyman, M.D. 
Read before the Boston Society of Natural History, November 7th, 1849. 
Tue species of the genus Manatus, Cuv. which have been 
heretofore generally recognized, are only two in number, viz., 
i, . Awericanvs, Cuv. and Desm.; Trichechus manatus, Linn. ; 
le grand Lamantin des Antilles, Buff. 2, the M. SENEGALENSIS, 
G, Cuvier; M. Africanus, F. Cuvier; Trichechus australis, 
Shaw.t The late Dr. Richard Harlan of Philadelphia, has indi- 
™ Trans. Zoolo: 3. il Fea ee or aeaeke 
. g. Soc. London, vol. iii, p. 895. : 
+ Fred. Cuvier. Hist. Nat. des Catnotiee. 8vo. Paris: 1836, Also Cyclopedia 
Physiology, Article Cetacea. Lond.: May, 1836. 
