The spiders belonging to this family possess eight eyes divided into rows of two, that are mostly triangular or oval-shaped. Other characteristics: They have two black barrel-shaped spinnerets resembling tubes at their abdominal tips. Size: They are 8 to 15mm (0.31 to 0.59 inches) in size.Ĭolor: The spiders of this family may be black, grayish-brown, or red. Physical Description & Identification Adults