National Aquarium: Largetooth Sawfish (Pristis pristis)

Did you know that this species is tolerant of a wide range of salinities and occurs from fresh water to seawater?

Sawfish are a type of ray, belonging to the same group of cartilaginous fishes as sharks, called elasmobranchs. The largetooth sawfish’s most prominent feature is its rostrum, also referred to as snout or saw, which has 14 to 23 large rostral teeth protruding from it, and comprises almost a quarter of the total length of the sawfish. Its body color can range from gray to greenish to golden brown, while its underbelly is cream-colored.

Sawfish travel far up river systems and even live in fresh water. Sometimes, they may venture into bays and coastal marine habitats, especially during the dry season. Mature sawfish have occasionally been found in deeper ocean waters.

Females reproduce every other year and have a gestation period of about five months. There may be four to 10 sawfish in a litter. The number of rostral teeth an individual sawfish will have throughout its life is fixed before birth. The teeth are somewhat flexible and covered by a thin membrane as they develop, and harden after the sawfish is born.

Learn more about the largetooth sawfish!


Science Topics
Zoology
Animals
Sharks & Rays
K-6
Kindergarten, 1st Grade, 2nd Grade, 3rd Grade, 4th Grade, 5th Grade, 6th Grade

What are you looking for?

Organization

National Aquarium

Website URL

Type of Resource

Article

Assigned Categories