Florent's Guide To The

Tropical Pacific Reefs

Trinchesia sp. 1
Trinchesia sp. 1
Trinchesia sp. 1
Category: Aeolid Nudibranchs
Scientific Name: Trinchesia sp. 1
Synonyms: Tenellia sp. 1
Size: Up to 2 in. (5cm)  
Distribution: Indo-West Pacific
Note: Often misidentified as Trinchesia yamasui
Mollusca (Phylum)
└Gastropoda (Class)
 └Heterobranchia (Subclass)
  └Euthyneura (Infraclass)
   └Nudipleura (Superorder)
    └Nudibranchia (Order)
     └Aeolidina (Suborder)
      └Fionoidea (Superfamily)
       └Trinchesiidae (Family)
        └Trinchesia (Genus)

Sea Slugs
Aeolid Nudibranchs

Trinchesia sp. 1

Blue-Banded Trinchesia

Bicolor Flabellina

Antonietta sp. 1

Indian Caloria

Cratena affinis

Red-Spotted Facelinid

Ringed Favorinus

Brock's Moridilla

Noumeaella sp. 1

Blue Dragon Nudibranch

Desirable Flabellina

Redline Flabellina

Blue Glaucus

Yellow-Tipped Phyllodesmium

Kabira Phyllodesmium

Solar-Powered Phyllodesmium

Great Phyllodesmium

Eubranchus mandapamensis

Ocellated Eubranchus

Eubranchus sp. 1

Eubranchus sp. 2

Red-Speckled Eubranchus

Mournful Phestilla



All Photographs
© 2025 Florent Charpin