At the Gaboon, the negroes hunt their enemies either with muskets or a kind of harpoon. Their vulnerable points are the attachment of the anterior limbs, and, of course, the eyes. It is here that their assailants endeavour to mark them. They are killed every day without their number appearing to be sensibly diminished, and, what is singular enough, without their seeming to grow mistrustful. During the heat of the noon, they retire among the reeds and rushes for repose, but never remain long in any one place. At evening and at morning they sally forth in quest of prey. They swim without making any noise, scarcely disturbing the water, which they cleave like dogs; they will also remain motionless on its surface, glancing around them with cruel, dull, sinister eyes. The negro does not feel towards them so great an horror as Europeans experience, who are powerfully affected by their exceeding hideousness. They eat their flesh, with which their huge bony skeleton is scantily furnished, and, according to Du Chaillu, can never obtain enough of the much-prized delicacy.[127] The Indian Crocodile, the _Gavial_ or _Garial_ (_Crocodilus Gangeticus_), is of the same size as his African congener, but easily distinguished by the peculiar conformation of his mouth; the jaws being remarkably straight, long, and narrow. The sides of the head are straight and perpendicular, the upper surface quadrilateral; and the mandible, instead of sloping gradually from the forehead, sinks suddenly to follow a straight and almost horizontal direction. The teeth are nearly double in number those of the Nilotic monster, but he is far less dangerous, and feeds only on fish. There are two species: the Gavial of the Ganges, found in all the great rivers of Southern Asia; and the Gavial of Schlegel, belonging exclusively to the island of Borneo.