I THE GORILLA 65 



near as it can be Anglicised, from which the common term 

 * Jocko ' probably comes. The Mpongwa appellation for its 

 new congener is Eng6-ena, prolonging the sound of the first 

 vowel, and slightly sounding the second. 



"The habitat of the Eng6-ena is the interior of lower Guinea, 

 whilst that of the Ench6-eko is nearer the sea -board. 



"Its height is about five feet ; it is disproportionately broad 

 across the shoulders, thickly covered with coarse black hair, 

 which is said to be similar in its arrangement to that of the 

 Ench6-eko ; with age it becomes gray, which fact has given 

 rise to the report that both animals are seen of different 

 colours. 



"Head. The prominent features of the head are, the great 

 width and elongation of the face, the depth of the molar region, 

 the branches of the lower jaw being very deep and extending 

 far backward, and the comparative smallness of the cranial 

 portion ; the eyes are very large, and said to be like those of 

 the Enche-eko, a bright hazel ; nose broad and flat, slightly 

 elevated towards the root ; the muzzle broad, and prominent lips 

 and chin, with scattered gray hairs ; the under lip highly mobile, 

 and capable of great elongation when the animal is enraged, 

 then hanging over the chin ; skin of the face and ears naked, 

 and of a dark brown, approaching to black. 



"The most remarkable feature of the head is a high ridge, 

 or crest of hair, in the course of the sagittal suture, which 

 meets posterior ily with a transverse ridge of the same, but less 

 prominent, running round from the back of one ear to the 

 other. The animal has the power of moving the scalp freely 

 forward and back, and when enraged is said to contract it 

 strongly over the brow, thus bringing down the hairy ridge and 

 pointing the hair forward, so as to present an indescribably 

 ferocious aspect. 



"Neck short, thick, and hairy ; chest and shoulders very broad, 

 said to be fully double the size of the Enche-ekos ; arms very 

 long, reaching some way below the knee the fore-arm much 

 the shortest ; hands very large, the thumbs much larger than 

 the fingers. . . . 



" The gait is shuffling ; the motion of the body, which is never 

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