Other Free Encyclopedias » Animal Life Resource » Jellyfish, Sponges, and Other Simple Animals » Arrow Worms: Chaetognatha - Physical Characteristics, Behavior And Reproduction, No Common Name (pterosagitta Draco): Species Accounts, No Common Name (eukrohnia Fowleri): Species Accounts - GEOGRAPHIC RANGE, HABITAT, DIET, ARROW WORMS AND PEOPLE, CONSERV

Arrow Worms: Chaetognatha - No Common Name (pterosagitta Draco): Species Accounts

length night ten eggs

Physical characteristics: Pterosagitta draco worms have eight to ten hooks, six to ten front teeth, and eight to eighteen back teeth. The body length reaches 0.4 inches (11 millimeters), and the tail length is about one-third the length of the body. These worms have one pair of fins on the tail. The eyes are small with T-shaped color spots.


Geographic range: Pterosagitta draco (abbreviated to P. draco) worms live in the Atlantic, Pacific, and Indian oceans.


Habitat: P. draco worms live in warm and cool areas of the open ocean close to the surface.


Diet: P. draco worms eat tiny crustaceans.

Behavior and reproduction: P. draco worms feed at night. They make quick movements over short distances to catch prey. The worms make both eggs and sperm. Fertilized eggs are released into the water, where the worms hatch and grow into adults.

Pterosagitta draco worms feed at night. They make quick movements over short distances to catch prey. (Illustration by Joseph E. Trumpey. Reproduced by permission.)

Pterosagitta draco and people: P. draco worms have no known importance to people.


Conservation status: P. draco worms are not considered threatened or endangered. ∎

Arrow Worms: Chaetognatha - No Common Name (eukrohnia Fowleri): Species Accounts [next] [back] Arrow Worms: Chaetognatha - Behavior And Reproduction

User Comments

Your email address will be altered so spam harvesting bots can't read it easily.
Hide my email completely instead?

Cancel or