Complex sentence: The California flying fish, "Cheilopogon pinnatibarbatus californicus", is a subspecies of Pacific flying fish up to 18 inches (45 cm) in length, and up to 2 lbs (1 kg) in weight.
Split into simpler sentences: The California flying fish, "Cheilopogon pinnatibarbatus californicus", is a subspecies of Pacific flying fish. It grows up to 18 inches (45 cm) in length, and up to 2 lbs (1 kg) in weight.