Florent's Guide To The

Tropical Pacific Reefs

Sapphire Flatworm
Pseudoceros caeruleocinctus
Sapphire Flatworm
Category: Polyclad Flatworms
Scientific Name: Pseudoceros caeruleocinctus
Synonyms: Pseudoceros sapphirinus
Size: 1 to 2 in. (2 to 5 cm)  
Depth: 10-100 ft. (3-30 m)
Distribution: West Pacific, Great Barrier Reef
Platyhelminthes (Phylum)
└Polycladida (Order)
 └Pseudocerotidae (Family)
  └Pseudoceros (Genus)
   └P. caeruleocinctus (Species)

Worms
Polyclad Flatworms

Sapphire Flatworm

Fuchsia Flatworm

Gosliner's Flatworm

Mimic Flatworm

Laing Island Flatworm

Racing Stripe Flatworm

Prudhoe's Flatworm

Red Dwarf Flatworm

Script Flatworm

Pseudoceros sp. 1

Thysanozoon sp. 1

Darkspotted Flatworm

Prostheceraeus sp. 1

Persian Carpet Flatworm

Tiger Flatworm

Flowers' Flatworm

Pleasing Flatworm

hancock's Flatworm

Pseudobiceros sp. 1

Pseudobiceros sp. 2



All Photographs
© 2026 Florent Charpin