Field notes
Encounter profile
Identified using .
Nembrotha cristata - Nembrotha are often vividly colored with green, blue, black, or red. They have distinctive external gills on their backs.
Species profile
Crested Nembrotha
Nembrotha cristata
Identified using .
26
Media items
Photos and videos
15
Dives
Distinct encounters
5
Locations
1 trip
Archive ecology
Conditions where we found it
SNAP observations, not the species’ full biological range.
- Depth evidence
- 8.7–23.0m
- Median 19.9m · n=8
- Water temperature
- 26.0–28.0°C
- Median 27.0°C · n=26
Depth basis: 0 recorded, 8 profile-estimated, 18 contextual.
Consistent water window
26 observations with dive temperature sit within 26.0–28.0°C.
Recent encounters trend shallower
The recent-half median is 7.9m shallower than the earlier-half median. This is an archive pattern, not a population conclusion.
View distributions & comparisons▾
Repeatable archive pattern · 26 observations / 15 dives
Observed depth distributionmiddle 50%: 12.9–21.9m
Calendar-quarter observations
Apr–Jun17
Jul–Sep9
Camera-clock comparison
Morning · 3Night · 21
- • These distributions describe photographs in SNAP, not a species’ complete biological range.
- • Depth distributions use recorded or capture-time profile estimates; dive-average and maximum context is excluded.
- • Time-of-day groups use the camera clock and are not corrected for sunrise, sunset, or timezone.
Creature trail
A life through time and place
#15 · Sep 22, 2026
My Reef
Raja Ampat · Asia 2026
22.6m · Estimated at capture time27.0°C
#14 · Sep 21, 2026
Mayhem Reef
Raja Ampat · Asia 2026
21.4m · Estimated at capture time26.0°C
#13 · Aug 23, 2026
Lekuan 1
Manado & Bunaken · Asia 2026
11.1m · Dive-average context27.0°C
#12 · Jul 1, 2026
Japanese Wreck
Amed, Bali · Asia 2026
9.2m · Dive-average context26.0°C
Species field guide
Notes, taxonomy, identification & seasonality
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Species field guide
Notes, taxonomy, identification & seasonality
Archive selection
Representative encounters
A representative entry point into the archive before the full record below.
Archive
All media records
26 media items
Optional context
Curious beyond the photographs?
Continue exploring
Life found nearby
Species photographed on the same dives come first, followed by close taxonomic neighbours.
Miller's Nembrotha
Nembrotha milleri
Raja Ampat
Redtooth Triggerfish
Odonus niger
Puerto Galera
Dusky Nembrotha
Nembrotha kubaryana
Puerto Galera
Fluted Giant Clam
Tridacna squamosa
Puerto Galera
Racing Stripe Flatworm
Pseudoceros bifurcus
Puerto Galera
Smallscale Scorpionfish
Scorpaenopsis oxycephala
Puerto Galera