Up to 1.2 meters
Disc-shaped
Up to 20 cm (7.9 in)
Dorsally flattened and covered in thorny spines
Up to 20 feet (6 meters)
Streamlined and long
15-30 cm
Compact and plump
1.1 to 1.3 meters (3.6 to 4.3 feet)
Powerful and compact
100 to 130 cm
Cat-like
Approximately 1.5 meters
58 to 70 cm
Small to medium-sized
61-79 cm
Large and muscular
9-10 inches
Small
10-16 inches
Medium-sized
1-10 mm
Small, oval-shaped
3 to 3.9 meters
6.5 to 9.2 feet
Long and muscular
1 to 2 inches
Slender and elongated
Approximately 1-2 inches
Small to medium-sized with a stout body
Up to 50 inches
Long and slim
2-4 feet
Stocky body with a triangular-shaped head