A drive-force transmitting apparatus that is to be installed in a vehicle, said drive-force transmitting apparatus comprising: a first gear that is to be rotated about a first axis; a rotary member that is to be rotated about a second axis, the second axis being parallel with the first axis and being distant from the first axis in a given direction, the given direction being a direction including a component of a horizontal direction of the vehicle in an apparatus installed state in which said drive-force transmitting apparatus is installed in the vehicle; a mechanical pump that is to be driven when said first gear is rotated; a casing that stores therein said first gear, said rotary member and said pump; a bearing through which said rotary member is held by said casing; a pipe that is connected at a proximal end portion thereof to said pump so as to supply oil sucked by said pump, to lubrication-required elements of said drive-force transmitting apparatus; said pipe extending in an extending direction and having a discharge hole provided in a distal end portion thereof, the extending direction being generally an upward direction of the vehicle in the apparatus installed state; a catch tank that is provided by a first rib provided in said casing, said catch tank being configured to store therein the oil that is to be supplied to said bearing; and a second-axis gear which is stored in said casing and which is rotated, together with said first gear, about the second axis, characterised by a guide way that is provided by a second rib provided in said casing, said guide way being configured to guide the oil discharged from said discharge hole, to said catch tank; wherein said guide way and said catch tank are spaced apart from each other, and cooperate with each other to define, between said guide way and said catch tank, a gap through which the oil stirred by said second-axis gear is to be introduced into said catch tank; and wherein said first gear is a differential ring gear. a first gear that is to be rotated about a first axis; a rotary member that is to be rotated about a second axis, the second axis being parallel with the first axis and being distant from the first axis in a given direction, the given direction being a direction including a component of a horizontal direction of the vehicle in an apparatus installed state in which said drive-force transmitting apparatus is installed in the vehicle; a mechanical pump that is to be driven when said first gear is rotated; a casing that stores therein said first gear, said rotary member and said pump; a bearing through which said rotary member is held by said casing; a pipe that is connected at a proximal end portion thereof to said pump so as to supply oil sucked by said pump, to lubrication-required elements of said drive-force transmitting apparatus; said pipe extending in an extending direction and having a discharge hole provided in a distal end portion thereof, the extending direction being generally an upward direction of the vehicle in the apparatus installed state; a catch tank that is provided by a first rib provided in said casing, said catch tank being configured to store therein the oil that is to be supplied to said bearing; and a second-axis gear which is stored in said casing and which is rotated, together with said first gear, about the second axis, characterised by a guide way that is provided by a second rib provided in said casing, said guide way being configured to guide the oil discharged from said discharge hole, to said catch tank; wherein said guide way and said catch tank are spaced apart from each other, and cooperate with each other to define, between said guide way and said catch tank, a gap through which the oil stirred by said second-axis gear is to be introduced into said catch tank; and wherein said first gear is a differential ring gear.