“We had hardly got clear of the Bashikoway ants and their bites when my ears were saluted by the singular cry of the Ape I was after. ‘Koola-koolo! koola-koolo!’[10] it said several times. Gambo and I raised our eyes, and saw, high up on a tree-branch, a large Ape. We both fired at once, and the next moment the poor beast fell to the ground with a heavy crash. I rushed up, anxious to see if, indeed, I had a new animal. I saw in a moment that it was neither a Nschiego Mbouvé, nor a Chimpanzee, nor a Gorilla. Again I had a happy day--marked for ever with red ink in my calendar. We at once disembowelled the animal, which was a male. I found in its intestines only vegetable matter and remains. The skin and skeleton were taken into camp, where I cured the former with arsenic sufficiently to take it into Obindji. The animal was a full-grown male, four feet three inches high, and was less powerfully built than the male Gorilla, but as powerful as either the Chimpanzee or Nschiego Mbouvé. When it was brought into Obindji, all the people, and even Quenqueza, at once exclaimed, ‘That is a Koolo-Kamba.’ Then I asked them about the other Apes I already knew, but for these they had other names, and did not at all confound the species. For all these reasons I was assured that my prize was indeed a new animal; a variety, at least, of those before known. The Koolo-Kamba has several distinctive marks: a very round head, whiskers running quite round the face and below the chin; the face is round, the cheek-bones prominent, the eyes sunken, and the jaws not very prominent, less so than in any of the Apes. The hair is black and long on the arm, which was, however, partly bare. The Koolo is the Ape, of all the great Apes now known, which most nearly approaches man in the structure of its head; for the capacity of the cranium is somewhat greater, in proportion to the animal’s size, than in either the Gorilla or the Nschiego Mbouvé. Of its habits these people could tell me nothing, except that farther in the interior it was found more frequently, and that it was like the Gorilla, very shy and hard of approach.” They are rare animals, and Du Chaillu met with this one only; it was as large as a female Gorilla, and from its structure was evidently a great climber. One was killed and sent over to Paris several years since, and its anatomy forms a great treatise by the distinguished men whose names are appended to its title, _Troglodytes Aubryi_.