Nomeus gronovii, the man-of-war fish, or bluebottle fish, is a species of fish in the family Nomeidae, the driftfish. It is native to the Atlantic, Pacific and Indian Oceans, where adults are generally found at depths from 200 to. It is notable for its ability to live within the deadly tentacles of a siphonophore, the Portuguese man o' war, upon whose tentacles and gonads it feeds. The fish is striped with blackish-blue blemishes covering its body, and the caudal fin is extremely forked. It can reach a length of 39 cm. It is of minor importance to commercial fisheries. This species is the only known member of its genus.
No narrative description available for this taxon yet.
A DNA barcode is a short, standardised stretch of genes that works like a fingerprint — enough to tell one species from another. Below is the molecular trace Nomeus gronovii has left across the world's sequence archives.
At a glance
DNA specimens10
BINs1
Marker genes1
eDNA detections13
Countries6
The DNA barcodethe species' typical barcode, built from every sequenced specimen
COI-5P652 bp consensus10 specimens
ACGT
▸ drag or hover over the strip to read any position — letter and how much it varies
Violet ticks below the strip = positions where individuals differ; flat = the species' unchanging signature. 98% of positions are identical in every specimen.
Where individuals differ — all 12 variable positions, in barcode order
Each circle is a barcode variant; bigger = more specimens, colour = region. Lines join the most similar variants and the tick marks count the mutations between them — a tight cluster is one “dialect”, a long line a more divergent lineage. Click a circle to list its actual specimens.
Diversity (π)0.47%
Haplotypes6
BIN1
Most divergent pair0.61%
OtherAsiaAfrica
Closest relatives by DNA barcode
The species whose COI barcode is most similar to this one — a quick “who is this most like”. The percentage is how much the barcode differs; it approximates, but is not, the full evolutionary tree.
★ the standard DNA barcode for this group — the short region actually read to tell this species apart. The rest are extra genes sequenced along the way.
★COI-5P
animal barcode
Organelle genome
Besides the big genome in the nucleus, cells carry a small, circular loop of DNA inside the cell's energy factories — the mitochondria. It is inherited almost only from the mother and is a leftover from ancient bacteria that moved into the cell. The mitochondrial markers above (ND*, COX, CYTB…) are read from exactly this loop. Outer ring = one strand, inner ring = the other.
▸ Tap any coloured segment — or a gene chip — to see what it is
◖ violet arc = the COI-5P barcode — the ~650 bp read used to ID this species
Pick a coloured segment on the ring — or a gene chip — to read what that gene does.
protein-codingrRNAtRNA
08Occurrence & distribution
Record type1 153 records
Wild obs. + sensor220
Museum / vouchered933
Origin
Native20
Range
Area of Occupancy AOO2 200 km²
Depth
0–200 m sunlit24
200–1000 m twilight5
1–4 km midnight1
>4 km abyssal0
median 2.5 m · max 1 220 m · 30 records with depth
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Coordinate accuracy83% within 1 km
≤100 m 63≤1 km 65≤10 km 8>10 km 18
154 georeferenced · 66 without coordinates
Open the mapobservation + sensor220
Museum / Voucheredphysical evidence
Backed by a physical specimen — a herbarium sheet, sample or voucher held in a collection. “Vouchered” means supported by material evidence, not just an observation.
Coordinate accuracy28% within 1 km
≤100 m 40≤1 km 68≤10 km 152>10 km 125
385 georeferenced · 548 without coordinates
Open the institutions mapphysical evidence933
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
10Collections & institutions
Holding institutions18 of 39 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record
73
Cambridge, US
56
Sydney, AU
50
Copenhagen, DK
46
University of California San Diegolocation not on record
28
New Haven, US
27
University of Texas Biodiversity Collections (UTBC)location not on record
26
South African Institute for Aquatic Biodiversitylocation not on record
23
Paris, FR
15
Washington, US
14
Toronto, CA
11
Natick, US
11
Australian National Fish Collectionlocation not on record
10
Texas Cooperative Wildlife Collectionlocation not on record
10
Chicago, US
9
Los Angeles, US
9
FishBaselocation not on record
7
Stockholm, SE
6
Tapachula, MX
5
Honolulu, US
4
Zoologisches Museum Hamburglocation not on record
4
Texas Memorial Museum, Texas Natural History Collectionlocation not on record
4
CASlocation not on record
4
Kagoshima University Museumlocation not on record
3
Oregon State Universitylocation not on record
2
SEAOBISlocation not on record
2
Zacatecas, MX
2
Facultad de Ciencias Biológicas y Agropecuarias, Universidad Veracruzana, Región Poza Rica-Tuxpanlocation not on record
2
Centro Interdisciplinario de Ciencias Marinas, Instituto Politécnico Nacionallocation not on record
1
San Nicolás de los Garza, MX
1
Ann Arbor, US
1
Museu de Zoologia da Universidade de Sao Paulolocation not on record
1
Southeastern Louisiana University, Vertebrate Museumlocation not on record
1
Montgomery, US
1
South Kensington, GB
1
Western Australian Museumlocation not on record
1
Museo civico La Terra e l'Uomo di Crocetta del Montellolocation not on record
1
University of Alabamalocation not on record
1
University of Minnesota, James Ford Bell Museum of Natural Historylocation not on record
1
39 institutions · 474 of 933 vouchered records shown · 15 without an institution code
09Environmental DNA13 detections
Where the DNA of Nomeus gronovii was picked up in samples of water, soil or air — nobody saw the organism, only its DNA left behind. A trace is a clue that the species was near, not a confirmed sighting.
Signal
Detections DNA found13
Studies independent surveys1
Countries6
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 13 detections have coordinates
Open the map6 countries0
How strong is each trace?
DNA read depthRead counts were not reported for this species — the map shows presence only, not how strong each trace was.
Modelled climatemodelled
−15°Ctemperature across detection sites+40°C
Temperature median24.3 °C 23.2–25.4
Seasonal swing summer↔winter5.80 °C
Max temp (day)25.9 °C 24.4–26.2
Min temp (night)22.9 °C 21.5–24.7
Precipitation115 mm/mo 56.5–184
Air humidity63.9 % 61.3–66.5
Vapour deficit1,105 Pa 993–1,179
Cloud cover30.6 % 19.9–44.0
CHELSA 1981–2010, ~9 km grid, at location & month of 10 detection points · median with p10–p90 · reflects where sampling happened, not only the true niche
How to read this: each dot is one detection of this species' DNA in an environmental sample. The confidence meter weighs how many independent studies and places back up the signal — one detection in one study is a hint; many across several studies is solid. Records dated before 2008 (when eDNA methods began) are treated as likely mislabeled and left off the map.
WikipediaWikimedia Foundation13 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility636 records↗
OBISOcean Biodiversity Information System517 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI13 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics10 specimens↗
Open Tree of LifeOpenTreephylogeny backbone↗
WikidataWikimedia Foundationstructured facts↗
Catalogue of LifeCOLtaxonomy↗
GLoBIGlobal Biotic Interactionsbiotic interactions↗