Occurrence record: 41104912

Human observation of Natrix helvetica (Lacépède, 1789) | Grass Snake recorded on 2025-04-23

API

Overview

Occurrence ID	41104912
Other catalogue numbers	01966265-5d6c-7000-ba68-dbf391dcd71a
Basis of record	Human observation
Scientific name	Natrix helvetica (Lacépède, 1789) - Grass Snake
Licence	CC-BY
Record Date	2025-04-23 (Day)
Locality	Croft, Lincolnshire
Location	Grid Reference: TF50306299 Latitude: 53.14289000000001 Longitude: 0.24572999999999998
Recorded by	Daniel Smith
Identification verification status	Unconfirmed - not reviewed
Occurrence remarks	On the pond edge

Dataset

Data partner	Amphibian and Reptile Conservation
Data resource	Records of amphibians and reptiles via iRecord
Bibliographic citation	Amphibian and Reptile Conservation and Biological Records Centre. [Date of download] Records verified via iRecord.
Collection code	iRecord \| App

Abundance

Individual count	1

Organism

Life stage	adult

Event

Occurrence date	2025-04-23
Date precision	Day
Event date	2025-04-23
Event ID	29282782

Taxonomy

Scientific name	Natrix helvetica (Lacépède, 1789) Supplied scientific name "Natrix helvetica (Lacépède, 1789)"
Common name	Grass Snake
Taxon rank	species
Name match metric	Taxon GUID match The match was based on the supplied taxon concept ID rather than the scientific name.
Species	Natrix helvetica
Genus	Natrix
Family	Colubridae
Order	Squamata
Class	Reptilia
Phylum	Chordata
Kingdom	Animalia
Taxon ID	NHMSYS0021178937
Taxonomic issue	No issues
Habitat taxon	terrestrial\|freshwater
Establishment means taxon	Native
Scientific name authorship	(Lacépède, 1789)

Geospatial

Country	United Kingdom
State/Province	England
Locality	Croft, Lincolnshire
Latitude (WGS84)	53.14289000000001
Longitude (WGS84)	0.24572999999999998
Geodetic datum	EPSG:4326
Coordinate precision	Unknown
Coordinate uncertainty in meters	5.0
Grid size in meters	10
Grid reference	TF50306299

User flagged issues

Data quality tests

Test name	Result
Geodetic datum assumed WGS84	Warning
Country inferred from coordinates	Warning
Grid reference calculated using latitude and longitude	Warning
Show/Hide 14 passed properties
Basis of record not supplied	Passed
Basis of record badly formed	Passed
Invalid collection date	Passed
Incomplete collection date	Passed
First of the month	Passed
Data are generalised	Passed
Name not supplied	Passed
Name not recognised	Passed
Decimal coordinates not supplied	Passed
Zero latitude	Passed
Coordinate uncertainty not valid	Passed
Coordinate uncertainty not specified	Passed
Location not supplied	Passed
Missing geodetic datum	Passed
Show/Hide 2 missing properties
Missing name of person who identified the specimen/observation	Missing
Missing catalogue number	Missing
Show/Hide 73 tests that have not been run
Coordinates dont match supplied state	Unchecked (lack of data)
Unrecognized geodetic datum	Unchecked (lack of data)
Unable to convert UTM coordinates	Unchecked (lack of data)
Depth out of range	Unchecked (lack of data)
Media unrepresentative for taxon	Unchecked (lack of data)
Possible duplicate record	Unchecked (lack of data)
Missing name of person who georeferenced the occurrence	Unchecked (lack of data)
Badly formed altitude	Unchecked (lack of data)
Missing taxonomic rank	Unchecked (lack of data)
Cultivated / escapee	Unchecked (lack of data)
Missing coordinate precision	Unchecked (lack of data)
Missing identification references	Unchecked (lack of data)
unrecognisedOccurrenceStatus	Unchecked (lack of data)
Invalid scientific name	Unchecked (lack of data)
Depth value non-numeric	Unchecked (lack of data)
Outside expert range for species	Unchecked (lack of data)
Missing georeferenced sources	Unchecked (lack of data)
Invalid geodetic datum	Unchecked (lack of data)
Coordinates converted from UTM	Unchecked (lack of data)
Zero longitude	Unchecked (lack of data)
Supplied country not recognised	Unchecked (lack of data)
Homonym issues with supplied name	Unchecked (lack of data)
Collector name unparseable	Unchecked (lack of data)
Identification date before occurrence date	Unchecked (lack of data)
Coordinates are transposed	Unchecked (lack of data)
Min and max altitude reversed	Unchecked (lack of data)
Missing georeferenced verification status	Unchecked (lack of data)
Supplied coordinates are zero	Unchecked (lack of data)
Altitude value non-numeric	Unchecked (lack of data)
Institution code not recognised	Unchecked (lack of data)
First of the century	Unchecked (lack of data)
Kingdom not recognised	Unchecked (lack of data)
Unrecognised ID verification status	Unchecked (lack of data)
Missing georeference date	Unchecked (lack of data)
Altitude out of range	Unchecked (lack of data)
Missing georeferenced protocol	Unchecked (lack of data)
Coordinates derived from verbatim coordinates	Unchecked (lack of data)
Day and month transposed	Unchecked (lack of data)
No collection date supplied	Unchecked (lack of data)
coordinatesNotCentreOfGrid	Unchecked (lack of data)
Occurrence status assumed to be present	Unchecked (lack of data)
Habitat incorrect for species	Unchecked (lack of data)
Date precision invalid	Unchecked (lack of data)
Coordinates converted to WGS84	Unchecked (lack of data)
Missing identification date	Unchecked (lack of data)
Decimal latitude/longitude conversion failed	Unchecked (lack of data)
Supplied coordinates centre of state	Unchecked (lack of data)
Min and max depth reversed	Unchecked (lack of data)
Unparseable verbatim coordinates	Unchecked (lack of data)
Resource taxonomic scope mismatch	Unchecked (lack of data)
Coordinate precision and uncertainty transposed	Unchecked (lack of data)
Collection code not recognised	Unchecked (lack of data)
Coordinates dont match supplied country	Unchecked (lack of data)
Media unrepresentative	Unchecked (lack of data)
Depth value supplied in feet	Unchecked (lack of data)
Longitude is negated	Unchecked (lack of data)
Latitude is negated	Unchecked (lack of data)
Latitude Longitude calculated from grid reference	Unchecked (lack of data)
Georeferenced after occurrence date	Unchecked (lack of data)
Altitude value supplied in feet	Unchecked (lack of data)
Suspected outlier	Unchecked (lack of data)
Image URL invalid	Unchecked (lack of data)
Coordinates centre of country	Unchecked (lack of data)
Type status not recognised	Unchecked (lack of data)
Missing identification verification status	Unchecked (lack of data)
Precision / range mismatch	Unchecked (lack of data)
Coordinate precision not valid	Unchecked (lack of data)
Higher taxonomy missing	Unchecked (lack of data)
Taxonomic issue	Unchecked (lack of data)
Missing an identification qualifier	Unchecked (lack of data)
Coordinates are out of range for species	Unchecked (lack of data)
Name not in national checklists	Unchecked (lack of data)
First of the year	Unchecked (lack of data)

Additional political boundaries information

England
Districts, Boroughs and Unitary Authorities (England)	Hyndburn District (B)
National Character Areas (England)	Lancashire Valleys
Non-Metropolitan Counties and Greater London (England)	Lancashire County
GB
Districts, Boroughs and Unitary Authorities (Great Britain)	Hyndburn District (B)
GB countries	England
Ordnance Survey Grids - 100km	SD
Ordnance Survey Grids - 10km	SD73
Ordnance Survey Grids - 50km	SDSE
Watsonian Vice Counties (GB)	South Lancashire
Watsonian Vice Counties – 12 mile (GB)	South Lancashire
Watsonian Vice Counties – 3 mile (GB)	South Lancashire
UK
Countries with sea areas	England
Local Environmental Records Centre Boundaries of the UK	Lancashire Environmental Records Network
UK, IoM, Channel Islands
Hexagonal grid for reporting - 10km	11375
Square grid for reporting - 10km	24396
World base layer	United Kingdom

Group	Field Name	Original Value	Processed Value
Classification	Species		Natrix helvetica
	Name match metric		taxonIdMatch
	Vernacular name	Grass Snake	Grass Snake
	Scientific name	Natrix helvetica (Lacépède, 1789)	Natrix helvetica
	Class		Reptilia
	Genus id		NHMSYS0000375242
	Taxon concept ID		NHMSYS0021178937
	Kingdom id		NBNSYS0100001342
	Left		4842
	Habitat taxon		terrestrial\|freshwater
	Phylum		Chordata
	Kingdom		Animalia
	Class id		NHMSYS0000375236
	Genus		Natrix
	Phylum id		NBNSYS0100002380
	Order		Squamata
	Taxon rank		species
	Establishment means taxon		Native
	Order id		NBNSYS0000161047
	Taxonomic issue		["noIssue"]
	Species id		NHMSYS0021178937
	Family id		NHMSYS0000375243
	Taxon ID	NHMSYS0021178937
	Family		Colubridae
	Taxon rank id		7000
	Scientific name authorship		(Lacépède, 1789)
	Right		4842
Event	Date precision		Day
	Event date	2025-04-23	2025-04-23
	Year		2025
	Day		23
	Month		04
	Event ID	29282782
Identification	Abcd identification qualifier		Not provided
	Identification qualifier		Not provided
	Identification verification status	Unconfirmed - not reviewed	Unconfirmed - not reviewed
Occurrence	Occurrence ID	41104912
	Basis of record	HumanObservation	HumanObservation
	Recorded by	Daniel Smith	Smith, D. Daniel
	Rights holder	Amphibian and Reptile Conservation, and Biological Records Centre
	Individual count	1
	Dataset name	Records of amphibians and reptiles via iRecord
	Other catalog numbers	01966265-5d6c-7000-ba68-dbf391dcd71a
	Occurrence remarks	On the pond edge
	Life stage	adult
	Occurrence status	present	present
	Collection code	iRecord \| App
Attribution	Data resource		Records of amphibians and reptiles via iRecord
	Data provider uid		dp58
	License		CC-BY
	Data Resource ID	dr2769
	Data partner		Amphibian and Reptile Conservation
Location	Decimal latitude	53.14289000000001	53.14289000000001
	Grid size in meters		10
	Coordinate uncertainty in meters	5	5.0
	Country		United Kingdom
	Grid reference		TF50306299
	State province		England
	Decimal longitude	0.24572999999999998	0.24572999999999998
	Locality	Croft, Lincolnshire	Croft, Lincolnshire
	Geodetic datum		EPSG:4326

Occurrence record: 41104912

Overview

Dataset

Abundance

Organism

Event

Taxonomy

Geospatial

User flagged issues

Data quality tests

Additional political boundaries information

- flagged by