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El Niño Compendium

Luisella telja

Photo wanted

Also calledSamla telja, Flabellina telja

Range status
North of range
Rarity this season
Uncommon

The listed range runs from the Gulf of California to the Galapagos Islands. iNaturalist held no earlier Southern California records on November 2, 2026, and files it as Samla telja.

Primary biome
Secondary biomes
Reports this season
9

Sightings

2026 season, numbered oldest first, every one sourced

  1. #5Oct 29, 20263 reports
    Orange County coast (exact spot hidden)
  2. #4Oct 29, 20263 reports
    Corona del Mar, Newport Beach
  3. #3Oct 28, 20261 report
    Orange County coast (exact spot hidden)
  4. #2Oct 28, 20261 report
    Corona del Mar, Newport Beach
  5. #1Oct 28, 20261 report
    Newport Bay

About this fish

What it is, where it comes from, and whether it has been here before

How it lives

This nudibranch lives from the intertidal zone, the shore between high and low tide, down onto shallow reef. It feeds on hydroids, small animals that look like tiny plants, and it is not tied to a single kind.

Where it normally lives

Tropical and subtropical eastern Pacific, from the Gulf of California to the Galapagos Islands.

SEASLUG.WORLD lists it from the tropical and subtropical eastern Pacific, from the Gulf of California to the Galapagos Islands. It was first described in 1967 from Cholla Bay in Sonora, Mexico.

Range source: SEASLUG.WORLD · World Register of Marine Species

In California

The sources read for this page list no California records. On October 28 and 29, 2026, 8 iNaturalist users logged 9 records on the Orange County coast, most of them at Corona del Mar and Newport Bay, and all reached research grade. iNaturalist held no earlier Southern California records on November 2, 2026, and it still files this animal under an older name, Samla telja.

Habitat
Intertidal rock and shallow reef
Size
Usually about 0.2 to 0.5 inch, up to about 1 inch
Depth
Intertidal to shallow reef
Reports this season
9

Photos

From California this season

No photos yet. If you photographed this animal in California this season, send it in.

Identification

How to tell it from the locals

This is a tiny pink nudibranch, a sea slug with no shell. It is an aeolid, the group with soft finger-like growths called cerata along the back. The body is see-through pink with opaque white spots, and it turns a deeper reddish pink after feeding. Most are about 0.2 to 0.5 inch long, and the largest recorded reach about 1 inch. It has no English name in the sources read for this page.

Details

Rarity this season
Uncommon
Family
Samlidae
Family, common name
Aeolid nudibranchs
Order
Nudibranchia
Class
Gastropoda
Genus / Species
Luisella telja

Rarity in the compendium is Nautical Nick's call on how likely a diver is to run into the animal on the California coast this season, not how rare it is where it normally lives.