1. Bottlenose Dolphin (Tursiops truncatus):
- Length: 6.5 - 13 feet (2 - 4 meters)
- Weight: 300 - 1,400 pounds (136 - 635 kilograms)
2. Common Dolphin (Delphinus delphis):
- Length: 6 - 8 feet (1.8 - 2.4 meters)
- Weight: 180 - 300 pounds (82 - 136 kilograms)
3. Spinner Dolphin (Stenella longirostris):
- Length: 5.5 - 8 feet (1.7 - 2.4 meters)
- Weight: 150 - 300 pounds (68 - 136 kilograms)
4. Risso's Dolphin (Grampus griseus):
- Length: 8 - 13 feet (2.4 - 4 meters)
- Weight: 600 - 1,800 pounds (272 - 816 kilograms)
5. Atlantic Spotted Dolphin (Stenella frontalis):
- Length: 5.5 - 8 feet (1.7 - 2.4 meters)
- Weight: 200 - 350 pounds (91 - 159 kilograms)
These size ranges represent adult male dolphins, with females typically being slightly smaller. It's worth noting that these are approximate ranges, and there can be variations in size within each species due to factors such as genetics, environmental conditions, and geographical location.