Ariolimax columbianus

(A.Gould, 1851) · species

image placeholder — illustration coming later

Animalia/Mollusca/Gastropoda/Stylommatophora/Ariolimacidae/Ariolimax

At a glance

Occurrence records38 328

Data sources10

Biological traits0

DNA specimens9

eDNA detections8

Sources10 archives

Databases and archives Ariolimax columbianus's data was compiled from.

WikipediaWikimedia Foundation3 languages↗

Animal Diversity WebUniv. of Michigan MZspecies account↗

BioWikiNetmultilingual Wikipediamultilingual↗

GBIFGlobal Biodiversity Information Facility38 328 records↗

ENAEuropean Nucleotide Archive · EMBL-EBI8 eDNA detections↗

BOLD SystemsCentre for Biodiversity Genomics9 specimens↗

Open Tree of LifeOpenTreephylogeny backbone↗

GoaTGenomes on a Tree · Sangergenome & karyotype↗

NCBIUS National Library of Medicinegenome & karyotype↗

GLoBIGlobal Biotic Interactionsbiotic interactions↗

On this page5 sections

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

NarrativeADW · Wikipediaarticle

Occurrence & distributionGBIF38 328 records

Environmental DNA1 datasets · 3 countries8 detections

DNA & barcodingBOLD9 specimens

Genome at a glanceGoaT · NCBI≈2.3 Gbp

01Narrative

The Pacific Banana Slug (Ariolimax columbianus) is a species of slug found on the Pacific coast of North America. It is the second-largest species of terrestrial slug in the world, growing up to 25 centimeters (9.8 in) long. As of 2021, it is the most commonly observed species in the genus Ariolimax on the citizen science website iNaturalist. An important function of this particular species is the role it plays in seed dispersion.Gervais, J., Traveset, A., Willson, M. (1998). “The Potential for Seed Dispersal by the Banana Slug (Ariolimax columbianus)”. The American Midland Naturalist. Vol. 140. Is. 1. Pp. 103-110.

No narrative description available for this taxon yet.

02Traits & measurements

No structured trait data for this taxon yet.

05DNA & barcoding9 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 Ariolimax columbianus has left across the world's sequence archives.

At a glance

DNA specimens9

BINs2

Marker genes1

eDNA detections8

Countries3

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

COI-5P652 bp consensus8 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. 83% of positions are identical in every specimen.

Diversity (π)8.0%

Haplotypes1

BINs2

Where individuals differ — all 111 variable positions, in barcode order

1Tvariable

2Avariable

3Cvariable

5Cvariable

6Tvariable

7Avariable

8Tvariable

9Avariable

10Tvariable

13Avariable

14Avariable

17Tvariable

18Tvariable

19Tvariable

21Gvariable

22Amostly conserved

23Gvariable

24Tvariable

28Avariable

29Tvariable

31Cvariable

32Gvariable

33Gvariable

35Avariable

39Gvariable

40Avariable

41Avariable

42Cvariable

43Tvariable

44Avariable

45Cvariable

46Avariable

47Gvariable

48Gvariable

49Avariable

50Cvariable

51Cvariable

52Avariable

54Cvariable

55Avariable

59Avariable

61Tvariable

62Cvariable

63Gvariable

65Tvariable

66Tvariable

67Gvariable

68Gvariable

69Avariable

70Gmostly conserved

71Tvariable

72Tvariable

73Avariable

74Avariable

75Gvariable

76Tvariable

78Cvariable

80Gvariable

83Avariable

84Gvariable

85Avariable

86Gvariable

87Tvariable

89Gvariable

91Amostly conserved

92Avariable

95Avariable

96Tvariable

97Avariable

111Tmostly conserved

122Amostly conserved

145Amostly conserved

157Amostly conserved

181Amostly conserved

190Tmostly conserved

193Amostly conserved

199Amostly conserved

232Tmostly conserved

259Gmostly conserved

271Tmostly conserved

274Tvariable

277Cmostly conserved

284Tmostly conserved

286Amostly conserved

316Gmostly conserved

334Amostly conserved

337Cmostly conserved

340Gmostly conserved

352Amostly conserved

355Amostly conserved

361Tmostly conserved

364Cvariable

367Tmostly conserved

370Gmostly conserved

376Tmostly conserved

379Tmostly conserved

397Tmostly conserved

403Cmostly conserved

425Tmostly conserved

430Amostly conserved

439Cmostly conserved

475Amostly conserved

481Tmostly conserved

508Amostly conserved

530Tmostly conserved

550Gmostly conserved

565Cmostly conserved

586Cmostly conserved

598Tmostly conserved

628Amostly conserved

634Amostly conserved

TACACTATATATAATTTTTGGAGTATGATGCGGAATAGGAACTACAGGACCATCATTAATTCGTTTGGAGTTAAGTACTGCTAGAGTAGT …

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.

Hemphillia glandulosasame family15.0%Glyphyalinia indentatasame order16.0%Vitrinizonites latissimussame order16.2%Pseudocharopa whiteleggeisame order16.3%Stanisicarion freycinetisame order16.3%

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

06Genome at a glanceGoaT · NCBI

The complete instruction manual Ariolimax columbianus carries — its genome. We read it from three angles — how big it is, how the DNA is packed into chromosomes, and how completely it has been sequenced — and explain how to read each value as you go.

Genome sizehow big the whole instruction manual is

Genome size≈2 294 312 288 bp assembly estimate

Measured in base pairs (bp) — the individual letters of DNA (human ≈ 3.2 Gb, a bacterium a few million). The chart places this genome on a logarithmic scale — each step to the right is ten times bigger — among reference organisms. Across species a bigger genome loosely tracks with larger cells, slower growth and lower-energy lifestyles (powered flight favours small genomes) — yet it does not imply more genes or a more advanced organism (the long-standing C-value paradox).

BACTERIUM Carsonella ruddii0.00016 Gb

FUNGUS0.04 Gb

INSECT0.25 Gb

THIS GENOME Ariolimax columbianus2.29 Gb

HUMAN3.2 Gb

WHEAT17 Gb

FERN Tmesipteris160.45 Gb

Sequencing statusassembly quality — how far to trust these numbers

Assembly level tells you how finished the sequence is — from fragmented contigs, through scaffolds, up to a full chromosome-level assembly. BUSCO % estimates completeness: the share of genes expected to be present that were actually found. These describe the data quality, not the organism.

Assembly levelScaffold

08Occurrence & distribution

Record type38 328 records

Wild obs. + sensor38 189

Museum / vouchered138

Other1

Origin

Native1

Range

Area of Occupancy AOO33 556 km²

Wildobservation + sensor

Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.

Coordinate accuracy84% within 1 km

≤100 m 21 304≤1 km 5 131≤10 km 2 721>10 km 2 410

31 566 georeferenced · 6 623 without coordinates

Open the mapobservation + sensor38 189

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 accuracy60% within 1 km

≤1 km 9≤10 km 5>10 km 1

15 georeferenced · 123 without coordinates

Open the institutions mapphysical evidence138

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 institutions7 of 12 geolocated

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

Institution	Specimens
Museo civico La Terra e l'Uomo di Crocetta del Montellolocation not on record	34
Philadelphia, US	32
Victoria, CA	27
CASlocation not on record	16
Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record	13
Santa Barbara Museum of Natural Historylocation not on record	4
Toronto, CA	4
Washington, US	2
Cambridge, US	1
Saint John, CA	1
Los Angeles, US	1
North Carolina Museum of Natural Scienceslocation not on record	1

12 institutions · 136 of 138 vouchered records shown · 2 without an institution code

09Environmental DNA8 detections

Where the DNA of Ariolimax columbianus 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 found8

Studies independent surveys1

Countries3

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

Where its DNA was found

0 of 8 detections have coordinates

Open the map3 countries0

Wetlandcoastal forestForest

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 median14.5 °C 9.20–14.6

Seasonal swing summer↔winter9.90 °C

Max temp (day)16.5 °C 11.9–17.2

Min temp (night)12.6 °C 7.00–13.0

Precipitation93.9 mm/mo 64.1–148

Air humidity68.7 % 60.8–71.0

Moisture balance44.0 mm/mo

Vapour deficit519 Pa 395–572

Wind speed3.90 m/s

Cloud cover38.6 % 36.7–49.5

CHELSA 1981–2010, ~9 km grid, at location & month of 8 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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The Life Data · species page · narrative wired to read_model image placeholder · 3D tilt requires an http server (WebGL)

Ariolimax columbianus

At a glance

Sources10 archives

At a glance

Genome sizehow big the whole instruction manual is

Sequencing statusassembly quality — how far to trust these numbers

Record type38 328 records

Origin

Range

Wildobservation + sensor

Museum / Voucheredphysical evidence

Wildobservation + sensor

Holding institutions7 of 12 geolocated

Signal

Where its DNA was found

How strong is each trace?

Modelled climatemodelled

Record type38 328 records