Abstract: A collector for excreta from domestic animals such as dogs, is formed by two rectangular frames, equal and facing each other, and joined by a rear concave-convex wall that forms an articulation for the collector in the form of pincers. The wall has a central opening that makes the articulation flexible. On the convex face of the wall are two ribs laterally aligned that aid in holding a transversal cylindrical tube closed at one end. The tube contains a continuous roll of bags, closed by a cap at one end. The tube further has an opening at another end in the axial direction. A central tab or jutting part, through which opening the free end of the bag passes, attaches to the central hole in a perforated transversal line which divides two consecutive bags, thereby making removal easier. The plastic bag is fitted so that it covers the collector pincers. The bottom of the bag is disposed inside the pincers next to the cylindrical tube.