pygmy goby

…long or less; the Philippine Pandaka pygmaea, one of the smallest living vertebrates, grows no longer than about 13 millimetres (3/8 inch).

…tiny species such as the pygmy goby (Pandaka pygmaea; 12 mm [0.5 inch]) to the enormous marlins and swordfishes (family Istiophoridae) with lengths up to 4.5 metres (15 feet) and the ocean sunfish (Mola mola), which may weigh over 900 kg (1 ton).