Ancistrocheirus lesueurii

(d'Orbigny, 1842) · species

image placeholder — illustration coming later

Animalia/Mollusca/Cephalopoda/Oegopsida/Ancistrocheiridae/Ancistrocheirus

At a glance

Occurrence records372

Data sources8

Biological traits6

DNA specimens3

eDNA detections11

Sources8 archives

Databases and archives Ancistrocheirus lesueurii's data was compiled from.

WikipediaWikimedia Foundation6 languages↗

BioWikiNetmultilingual Wikipediamultilingual↗

GBIFGlobal Biodiversity Information Facility179 records↗

OBISOcean Biodiversity Information System193 records↗

ENAEuropean Nucleotide Archive · EMBL-EBI11 eDNA detections↗

BOLD SystemsCentre for Biodiversity Genomics3 specimens↗

Open Tree of LifeOpenTreephylogeny backbone↗

WikidataWikimedia Foundationstructured facts↗

On this page5 sections

Every layer below draws on the sources above — open one to explore it, or use ← → to move between tabs.

NarrativeWikipediaarticle

Traits & measurements1 literature sources6 traits

Occurrence & distributionGBIF · OBIS372 records

Environmental DNA1 datasets · 2 countries11 detections

DNA & barcodingBOLD3 specimens

01Narrative

Ancistrocheirus lesueurii, the sharpear enope squid, is the only species in the genus Ancistrocheirus and family Ancistrocheiridae. With a mantle length of 25 cm, this moderately sized squid may be found throughout the tropical and subtropical oceans. They tend to be found at mesopelagic depths (200–1000 m down). Although only one species is recognized, some have suggested more than one species may exist due to differences in the paralarval morphology. Paralarva is the first free-living stage for cephalopods.

No narrative description available for this taxon yet.

02Traits & measurements

SourcesSeaLifeBase

Size & morphology1

Body length43.5 cm

Habitat & environment2

Habitat saltwateryes

Habitat zonepelagic-oceanic

Other traits3

Depth max700 m

Depth min1 m

Vulnerability29

05DNA & barcoding3 specimens

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 Ancistrocheirus lesueurii has left across the world's sequence archives.

At a glance

DNA specimens3

BINs2

Marker genes1

eDNA detections11

Countries2

The DNA barcodethe species' typical barcode, built from every sequenced specimen

COI-5P620 bp consensus3 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. 84% of positions are identical in every specimen.

Diversity (π)11.0%

Haplotypes1

BINs2

Where individuals differ — all 102 variable positions, in barcode order

41Tvariable

56Avariable

63Tvariable

65Gvariable

66Tvariable

68Avariable

77Tvariable

81Tvariable

83Avariable

86Cvariable

95Avariable

98Avariable

101Avariable

107Tvariable

116Tvariable

134Avariable

140Avariable

143Cvariable

149Tvariable

155Cvariable

158Tvariable

164Cvariable

170Avariable

176Avariable

177Tvariable

179Avariable

182Avariable

185Avariable

188Avariable

191Avariable

200Gvariable

203Cvariable

209Tvariable

221Cvariable

234Tvariable

254Avariable

258Cvariable

260Avariable

272Avariable

275Avariable

278Cvariable

287Tvariable

293Tvariable

296Avariable

299Avariable

308Avariable

311Tvariable

314Tvariable

318Tvariable

320Avariable

326Avariable

332Tvariable

335Avariable

341Avariable

344Tvariable

357Cvariable

368Cvariable

371Cvariable

377Tvariable

380Avariable

383Cvariable

387Gvariable

389Cvariable

392Avariable

395Tvariable

404Avariable

413Cvariable

416Cvariable

425Tvariable

429Cvariable

437Avariable

440Avariable

449Tvariable

450Tvariable

452Avariable

465Cvariable

470Tvariable

473Tvariable

497Tvariable

504Cvariable

506Gvariable

510Cvariable

512Gvariable

515Avariable

518Cvariable

521Tvariable

527Avariable

533Cvariable

536Gvariable

539Cvariable

542Cvariable

545Avariable

551Avariable

554Tvariable

563Avariable

575Cvariable

581Tvariable

590Avariable

593Avariable

596Avariable

602Avariable

617Tvariable

CAGGTTTGCTAGGAACATCCTTGAGACTTATAATTCGTACTGAATTAGGTCAACCAGGATCCTTGTTAAATGATGATCAATTATACAACG …

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.

Moroteuthopsis ingenssame order16.3%Onychoteuthis banksiisame order16.3%Liocranchia reinhardtiisame order16.4%Bathyteuthis abyssicolasame order16.5%Euprymna hyllebergisame order17.1%

Marker genes sequenced

★ 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

08Occurrence & distribution

Record type372 records

Wild obs. + sensor50

Museum / vouchered311

Other11

Range

Area of Occupancy AOO712 km²

Depth

0–200 m sunlit11

200–1000 m twilight48

1–4 km midnight14

>4 km abyssal0

median 350.5 m · max 2 199 m · 73 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 accuracy78% within 1 km

≤100 m 1≤1 km 6≤10 km 1>10 km 1

9 georeferenced · 41 without coordinates

Open the mapobservation + sensor50

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 accuracy55% within 1 km

≤100 m 5≤1 km 61≤10 km 51>10 km 3

120 georeferenced · 191 without coordinates

Open the institutions mapphysical evidence311

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 institutions5 of 17 geolocated

Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.

Institution	Specimens
Tasmanian Museum & Art Gallerylocation not on record	45
Washington, US	24
The Atlantic reference Centrelocation not on record	20
South African Institute for Aquatic Biodiversitylocation not on record	19
Museums Victorialocation not on record	10
Santa Barbara Museum of Natural Historylocation not on record	9
Australian National Fish Collectionlocation not on record	8
Sydney, AU	5
ICM-CSIClocation not on record	4
ICATMARlocation not on record	4
IEOlocation not on record	4
Cambridge, US	3
UM-RSMASlocation not on record	3
Western Australian Museumlocation not on record	3
Earth Sciences New Zealandlocation not on record	2
Wellington, NZ	2
Paris, FR	1

17 institutions · 166 of 311 vouchered records shown · 1 without an institution code

09Environmental DNA11 detections

Where the DNA of Ancistrocheirus lesueurii 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 found11

Studies independent surveys1

Countries2

Signal confidence: weakweighed across independent studies, places & mapped detections

Where its DNA was found

0 of 11 detections have coordinates

Open the map2 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 median23.6 °C 20.3–24.3

Seasonal swing summer↔winter14.9 °C

Max temp (day)24.7 °C 21.1–25.2

Min temp (night)22.7 °C 19.5–23.4

Precipitation170 mm/mo 79.6–170

Air humidity62.3 % 62.3–65.9

Vapour deficit1,096 Pa 855–1,096

Cloud cover41.5 % 35.7–41.5

CHELSA 1981–2010, ~9 km grid, at location & month of 5 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.

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