Prosthiostomum trilineatum Three-line Flatworm

Prosthiostomum trilineatum is commonly referred to as Three-line Flatworm. Difficulty in the aquarium: Not suitable for aquarium keeping. Toxicity: Toxic.

Profile

lexID:

17896 

AphiaID:

483891 

Scientific:

Prosthiostomum trilineatum 

German:

Drei-Linien Strudelwurm 

English:

Three-line Flatworm 

Category:

Plattmaskar 

Family tree:

Animalia (Kingdom) > Platyhelminthes (Phylum) > Polycladida (Order) > Prosthiostomidae (Family) > Prosthiostomum (Genus) > trilineatum (Species) 

Initial determination:

Yeri & Kaburaki, 1920 

Occurrence:

Australia, Guam, Hawaii, India, Japan, Marschall Islands, Micronesia, New Caledonia, Papua New Guinea, Philippines, Red Sea, Singapore, Vietnam 

Marine Zone:

Subtidal, sublittoral, infralittoral, deep zone of the oceans from the lower limit of the intertidal zone (intertidal) to the shelf edge at about 200 m water depth. neritic. 

Sea depth:

Meter 

Habitats:

Coastal waters, Intertidal zone, Tidal Zone, Reef combs, Reef ridges, Rubble floors, Seawater, Sea water, Under rocks 

Size:

1.57" - 2.36" (4cm - 6cm) 

Temperature:

°F - 82.4 °F (°C - 28°C) 

Food:

Carnivore, No reliable information available 

Difficulty:

Not suitable for aquarium keeping 

Offspring:

None 

Toxicity:

Toxic 

CITES:

Not evaluated 

Red List:

Not evaluated (NE) 

Related species at
Catalog of Life:

• Prosthiostomum arctum
• Prosthiostomum elongatum
• Prosthiostomum gracile
• Prosthiostomum latocelis
• Prosthiostomum siphunculus

 

More related species
in this lexicon:

• 
  Prosthiostomum acroporae
  Acropora Strudelwurm AEFW
• 
  Prosthiostomum huidongense
  Huidong Strudelwurm
• 
  Prosthiostomum sp.01
  Strudelwurm
• 
  Prosthiostomum trilineatum
  Drei-Linien Strudelwurm

 

Author:

Meerwasser-Lexikon Team

Publisher:

Meerwasser-Lexikon.de

Created:

2025-11-19 19:47:58 

Last edit:

2025-12-16 14:04:22 

Toxicity

Prosthiostomum trilineatum is (very) poisonous and the poison can kill you under circumstances!!!
If you want to keep Prosthiostomum trilineatum, inform yourself about the poison and its effects before buying. Keep a note with the telephone number of the poison emergency call and all necessary information about the animal next to your aquarium so that you can be helped quickly in an emergency.
The telephone numbers of the poison emergency call can be found here:
[overview_and_url_DE]
Overview Europe: European Association of Poisons Centres and Clinical Toxicologists

This message appears for poisonous, very poisonous and also animals whose poison can kill you immediately. Every human reacts differently to poisons. Please therefore weigh the risk for yourself AND your environment very carefully, and never act lightly!

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