Caribbean Reef Shark
Carcharhinus perezi
10 feet
Most common shark to witness in the Caribbean
Females give birth to 4-6 pups every other year
Valuable as eco-tourism asset 
Most commonly "fed" shark

Yellow Stingray
Urobatis jamaicensis
14 inches across, 28 long
Gestation period is 5-6 months, two litters a year with up to seven pups
Tail spine is venomous 
Fairly inactive during daytime