Mesodon thyroidus

(Say, 1817) · species

image placeholder — illustration coming later

Animalia/Mollusca/Gastropoda/Stylommatophora/Polygyridae/Mesodon

At a glance

Occurrence records4 882

Data sources9

Biological traits0

DNA specimens11

eDNA detections10

Sources9 archives

Databases and archives Mesodon thyroidus's data was compiled from.

WikipediaWikimedia Foundation2 languages↗

BioWikiNetmultilingual Wikipediamultilingual↗

GBIFGlobal Biodiversity Information Facility4 882 records↗

ENAEuropean Nucleotide Archive · EMBL-EBI10 eDNA detections↗

BOLD SystemsCentre for Biodiversity Genomics11 specimens↗

Open Tree of LifeOpenTreephylogeny backbone↗

GoaTGenomes on a Tree · Sangergenome & karyotype↗

Catalogue of LifeCOLtaxonomy↗

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.

NarrativeWikipediaarticle

Occurrence & distributionGBIF4 882 records

Environmental DNA1 datasets · 2 countries10 detections

DNA & barcodingBOLD11 specimens

Genome at a glanceGoaT2n = 58

01Narrative

Mesodon thyroidus is a species of air-breathing land snail, a terrestrial gastropod mollusk in the family Polygyridae.

No narrative description available for this taxon yet.

02Traits & measurements

No structured trait data for this taxon yet.

05DNA & barcoding11 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 Mesodon thyroidus has left across the world's sequence archives.

At a glance

DNA specimens11

BINs1

Marker genes1

eDNA detections10

Countries2

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. 84% of positions are identical in every specimen.

Where individuals differ — all 105 variable positions, in barcode order

1Gvariable

2Tvariable

3Tvariable

4Tvariable

5Tvariable

6Tvariable

7Avariable

8Tvariable

9Tvariable

10Tvariable

11Tvariable

12Tvariable

13Avariable

15Tvariable

16Tvariable

17Gvariable

18Gvariable

19Gvariable

20Gvariable

21Tvariable

22Gvariable

23Gvariable

24Tvariable

25Avariable

26Tvariable

28Avariable

29Tvariable

30Gvariable

31Tvariable

32Gvariable

33Gvariable

34Avariable

35Avariable

37Avariable

38Gvariable

39Tvariable

40Avariable

41Gvariable

42Gvariable

43Tvariable

44Avariable

45Cvariable

46Tvariable

47Gvariable

48Tvariable

49Avariable

50Cvariable

51Tvariable

52Tvariable

53Tvariable

54Tvariable

55Tvariable

56Cvariable

57Tvariable

58Gvariable

59Cvariable

61Tvariable

62Avariable

63Gvariable

65Cvariable

66Gvariable

67Tvariable

68Gvariable

69Tvariable

70Gvariable

71Gvariable

72Avariable

73Gvariable

74Gvariable

75Tvariable

76Tmostly conserved

77Gvariable

78Gvariable

79Tvariable

80Avariable

81Cvariable

82Tvariable

84Cvariable

85Cvariable

87Gvariable

88Avariable

124Tmostly conserved

127Tmostly conserved

139Tmostly conserved

169Cmostly conserved

199Amostly conserved

205Amostly conserved

208Gmostly conserved

235Tmostly conserved

286Amostly conserved

298Gmostly conserved

310Amostly conserved

334Tmostly conserved

343Cmostly conserved

353Cmostly conserved

355Amostly conserved

397Tmostly conserved

406Gvariable

421Tmostly conserved

469Tmostly conserved

493Cmostly conserved

511Amostly conserved

547Gmostly conserved

559Cmostly conserved

589Gmostly conserved

GTTTTTATTTTTATTTGGGGTGGTATGATGTGGAATAGTAGGTACTGTACTTTTTCTGCTTAGTCGTGTGGAGGTTGGTACTGCCGGAGT …

Variant network

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)8.2%

Haplotypes3

BIN1

Most divergent pair0.31%

N.America

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.

Mesodon zaletussame genus16.7%Pyrenaearia cantabricasame order17.5%

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

The complete instruction manual Mesodon thyroidus 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.

Chromosomes & ploidyhow the DNA is packaged

2n is the full chromosome count in a normal body cell; n is a gamete (egg or sperm), which carries half. Ploidy is how many complete chromosome sets each cell holds — 2× (diploid) is typical for animals, while higher levels (polyploidy) are common in plants. Click any value below to see the underlying records and sources.

Chromosomes2n = 58 n = 29

Chromosome-count records — grouped by value · 2n = full set, n = gamete · click a value for sources & references

2n 581×GoaT · Animal Chromosome Counts Database

GoaT · Animal Chromosome Counts Database — ↗

08Occurrence & distribution

Record type4 882 records

Wild obs. + sensor1 310

Museum / vouchered3 565

Fossil4

Other3

Range

Area of Occupancy AOO14 064 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 accuracy85% within 1 km

≤100 m 749≤1 km 138≤10 km 54>10 km 106

1 047 georeferenced · 263 without coordinates

Open the mapobservation + sensor1 310

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 accuracy41% within 1 km

≤100 m 225≤1 km 155≤10 km 394>10 km 150

924 georeferenced · 2 641 without coordinates

Open the institutions mapphysical evidence3 565

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 institutions16 of 30 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	776
Philadelphia, US	631
Chongqing Museumlocation not on record	449
Delaware Museum of Nature and Sciencelocation not on record	386
Chicago, US	306
Cambridge, US	281
Champaign, US	256
North Carolina Museum of Natural Scienceslocation not on record	141
Ann Arbor, US	116
Chicago, US	45
Santa Barbara Museum of Natural Historylocation not on record	36
Museo civico La Terra e l'Uomo di Crocetta del Montellolocation not on record	29
Los Angeles, US	21
Montgomery, US	17
Paleontological Research Institutionlocation not on record	10
Alabama Museum of Natural Historylocation not on record	9
Provincia di Livornolocation not on record	8
EL PASO, US	7
Sam Noble Oklahoma Museum of Natural Historylocation not on record	6
University of Guelph, Centre for Biodiversity Genomicslocation not on record	4
Toronto, CA	4
RBINS-Scientific Heritagelocation not on record	4
Brussels, BE	4
Saint John, CA	3
Denver, US	3
New Haven, US	2
Abilene Christian University Natural History Collectionlocation not on record	1
Helsinki, FI	1
Barcelona, ES	1
PUC-RSlocation not on record	1

30 institutions · 3 558 of 3 565 vouchered records shown · 7 without an institution code

09Environmental DNA10 detections

Where the DNA of Mesodon thyroidus 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 found10

Studies independent surveys1

Countries2

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

Where its DNA was found

0 of 10 detections have coordinates

Open the map2 countries0

Forest

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 median16.5 °C -3.10–20.6

Seasonal swing summer↔winter27.2 °C

Max temp (day)20.5 °C 0.4–25.7

Min temp (night)14.1 °C -5.40–16.9

Precipitation94.3 mm/mo 58.0–120

Air humidity58.8 % 57.8–63.3

Moisture balance-30.9 mm/mo -75.5–17.5

Vapour deficit785 Pa 181–997

Wind speed5.30 m/s 2.70–6.70

Cloud cover42.2 % 38.8–51.8

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.

←→tabs

The Life Data · species page · narrative wired to read_model image placeholder · 3D tilt requires an http server (WebGL)

Mesodon thyroidus

At a glance

Sources9 archives

At a glance

Chromosomes & ploidyhow the DNA is packaged

Record type4 882 records

Range

Wildobservation + sensor

Museum / Voucheredphysical evidence

Wildobservation + sensor

Holding institutions16 of 30 geolocated

Signal

Where its DNA was found

How strong is each trace?

Modelled climatemodelled

Record type4 882 records