The National Red List Project

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Assessment ID
ESNRL1122120253
Taxon name
Napaeus esbeltus
Uploaded by
IUCN SSC Spain Species Specialist Group (EsSSG)
Taxonomic information
Scientific name
Napaeus esbeltus
Assessed taxon level
Species
Higher level taxonomic groupings
Invertebrates
Molluscs
Kingdom
Animalia
Phylum
Class
Order
Family
Genus
Napaeus
Species
esbeltus
Species authority
Location and scope
Scope (of the Assessment)
National
Countries included within the scope of the assessment
Spain
Does the assessment cover a marine EEZ area(s)?
Not assigned
Conservation Status
Assessed as
Endangered
Criteria system used
IUCN

(see Assessment details)

Assessment details
Year assessed
2025
Assessors/contributors/reviewers listed
Arrébola Burgos, J.R.
Criteria system used
IUCN
Reference for methods given
IUCN (2001) IUCN Red List Categories and Criteria: Version 3.1. IUCN Species Survival Commission. IUCN, Gland, Switzerland and Cambridge, U.K. ii + 30pp. and IUCN (2012) Guidelines for Application of IUCN Red List Criteria at Regional and National Levels: Version 4.0. Gland, Switzerland and Cambridge, UK: IUCN. iii + 41pp
Further information
Endemism (according to assessment)
Endemic to region
Yes
Habitat and systems
Ecological system type
Terrestrial
Freshwater
Marine
Publication
Spain assessment. The IUCN National Red List of Spanish Threatened Species
IUCN SSC EsSSG and IUCN Red List Unit, 2025. The IUCN National Red List of Spanish Threatened Species.
Assessment ID
220201404
Taxon name
Napaeus encaustus
Uploaded by
IUCN SSC Spain Species Specialist Group (EsSSG)
Taxonomic information
Scientific name
Napaeus encaustus
Assessed taxon level
Species
Higher level taxonomic groupings
Invertebrates
Molluscs
Kingdom
Animalia
Phylum
Class
Order
Family
Genus
Napaeus
Species
encaustus
Species authority
Location and scope
Scope (of the Assessment)
National
Countries included within the scope of the assessment
Spain
Does the assessment cover a marine EEZ area(s)?
Not assigned
Conservation Status
Assessed as
Least Concern
Criteria system used
IUCN

(see Assessment details)

Assessment details
Year assessed
2024
Assessors/contributors/reviewers listed
Groh, K. & Neiber, M.T.
Criteria system used
IUCN
Reference for methods given
IUCN (2001) IUCN Red List Categories and Criteria: Version 3.1. IUCN Species Survival Commission. IUCN, Gland, Switzerland and Cambridge, U.K. ii + 30pp.
Further information
Endemism (according to assessment)
Endemic to region
Yes
Habitat and systems
Ecological system type
Terrestrial
Freshwater
Marine
Publication
Global and Europe Assessment. The IUCN Red List of Threatened Species
IUCN. 2025. The IUCN Red List of Threatened Species. Version 2025-2. https://www.iucnredlist.org.
Assessment ID
220212017
Taxon name
Napaeus doliolum
Uploaded by
IUCN SSC Spain Species Specialist Group (EsSSG)
Taxonomic information
Scientific name
Napaeus doliolum
Assessed taxon level
Species
Higher level taxonomic groupings
Invertebrates
Molluscs
Kingdom
Animalia
Phylum
Class
Order
Family
Genus
Napaeus
Species
doliolum
Species authority
Location and scope
Scope (of the Assessment)
National
Countries included within the scope of the assessment
Spain
Does the assessment cover a marine EEZ area(s)?
Not assigned
Conservation Status
Assessed as
Endangered
Criteria system used
IUCN

(see Assessment details)

Assessment details
Year assessed
2024
Assessors/contributors/reviewers listed
Groh, K. & Alonso, M.R.
Criteria system used
IUCN
Reference for methods given
IUCN (2001) IUCN Red List Categories and Criteria: Version 3.1. IUCN Species Survival Commission. IUCN, Gland, Switzerland and Cambridge, U.K. ii + 30pp.
Further information
Endemism (according to assessment)
Endemic to region
Yes
Habitat and systems
Ecological system type
Terrestrial
Freshwater
Marine
Publication
Global and Europe Assessment. The IUCN Red List of Threatened Species
IUCN. 2025. The IUCN Red List of Threatened Species. Version 2025-2. https://www.iucnredlist.org.
Assessment ID
220145815
Taxon name
Napaeus delicatus
Uploaded by
IUCN SSC Spain Species Specialist Group (EsSSG)
Taxonomic information
Scientific name
Napaeus delicatus
Assessed taxon level
Species
Higher level taxonomic groupings
Invertebrates
Molluscs
Kingdom
Animalia
Phylum
Class
Order
Family
Genus
Napaeus
Species
delicatus
Species authority
Location and scope
Scope (of the Assessment)
National
Countries included within the scope of the assessment
Spain
Does the assessment cover a marine EEZ area(s)?
Not assigned
Conservation Status
Assessed as
Vulnerable
Criteria system used
IUCN

(see Assessment details)

Assessment details
Year assessed
2024
Assessors/contributors/reviewers listed
Neiber, M.T. & Groh, K.
Criteria system used
IUCN
Reference for methods given
IUCN (2001) IUCN Red List Categories and Criteria: Version 3.1. IUCN Species Survival Commission. IUCN, Gland, Switzerland and Cambridge, U.K. ii + 30pp.
Further information
Endemism (according to assessment)
Endemic to region
Yes
Habitat and systems
Ecological system type
Terrestrial
Freshwater
Marine
Publication
Global and Europe Assessment. The IUCN Red List of Threatened Species
IUCN. 2025. The IUCN Red List of Threatened Species. Version 2025-2. https://www.iucnredlist.org.
Assessment ID
220176665
Taxon name
Napaeus consecoanus
Uploaded by
IUCN SSC Spain Species Specialist Group (EsSSG)
Taxonomic information
Scientific name
Napaeus consecoanus
Assessed taxon level
Species
Higher level taxonomic groupings
Invertebrates
Molluscs
Kingdom
Animalia
Phylum
Class
Order
Family
Genus
Napaeus
Species
consecoanus
Species authority
Location and scope
Scope (of the Assessment)
National
Countries included within the scope of the assessment
Spain
Does the assessment cover a marine EEZ area(s)?
Not assigned
Conservation Status
Assessed as
Near Threatened
Criteria system used
IUCN

(see Assessment details)

Assessment details
Year assessed
2024
Assessors/contributors/reviewers listed
Neiber, M.T. & Groh, K.
Criteria system used
IUCN
Reference for methods given
IUCN (2001) IUCN Red List Categories and Criteria: Version 3.1. IUCN Species Survival Commission. IUCN, Gland, Switzerland and Cambridge, U.K. ii + 30pp.
Further information
Endemism (according to assessment)
Endemic to region
Yes
Habitat and systems
Ecological system type
Terrestrial
Freshwater
Marine
Publication
Global and Europe Assessment. The IUCN Red List of Threatened Species
IUCN. 2025. The IUCN Red List of Threatened Species. Version 2025-2. https://www.iucnredlist.org.
Assessment ID
220175879
Taxon name
Napaeus chrysaloides
Uploaded by
IUCN SSC Spain Species Specialist Group (EsSSG)
Taxonomic information
Scientific name
Napaeus chrysaloides
Assessed taxon level
Species
Higher level taxonomic groupings
Invertebrates
Molluscs
Kingdom
Animalia
Phylum
Class
Order
Family
Genus
Napaeus
Species
chrysaloides
Species authority
Location and scope
Scope (of the Assessment)
National
Countries included within the scope of the assessment
Spain
Does the assessment cover a marine EEZ area(s)?
Not assigned
Conservation Status
Assessed as
Data Deficient
Criteria system used
IUCN

(see Assessment details)

Assessment details
Year assessed
2024
Assessors/contributors/reviewers listed
Groh, K.
Criteria system used
IUCN
Reference for methods given
IUCN (2001) IUCN Red List Categories and Criteria: Version 3.1. IUCN Species Survival Commission. IUCN, Gland, Switzerland and Cambridge, U.K. ii + 30pp.
Further information
Endemism (according to assessment)
Endemic to region
Yes
Habitat and systems
Ecological system type
Terrestrial
Freshwater
Marine
Publication
Global and Europe Assessment. The IUCN Red List of Threatened Species
IUCN. 2025. The IUCN Red List of Threatened Species. Version 2025-2. https://www.iucnredlist.org.
Assessment ID
220211032
Taxon name
Napaeus boucheti
Uploaded by
IUCN SSC Spain Species Specialist Group (EsSSG)
Taxonomic information
Scientific name
Napaeus boucheti
Assessed taxon level
Species
Higher level taxonomic groupings
Invertebrates
Molluscs
Kingdom
Animalia
Phylum
Class
Order
Family
Genus
Napaeus
Species
boucheti
Species authority
Location and scope
Scope (of the Assessment)
National
Countries included within the scope of the assessment
Spain
Does the assessment cover a marine EEZ area(s)?
Not assigned
Conservation Status
Assessed as
Near Threatened
Criteria system used
IUCN

(see Assessment details)

Assessment details
Year assessed
2024
Assessors/contributors/reviewers listed
Neiber, M.T. & Groh, K.
Criteria system used
IUCN
Reference for methods given
IUCN (2001) IUCN Red List Categories and Criteria: Version 3.1. IUCN Species Survival Commission. IUCN, Gland, Switzerland and Cambridge, U.K. ii + 30pp.
Further information
Endemism (according to assessment)
Endemic to region
Yes
Habitat and systems
Ecological system type
Terrestrial
Freshwater
Marine
Publication
Global and Europe Assessment. The IUCN Red List of Threatened Species
IUCN. 2025. The IUCN Red List of Threatened Species. Version 2025-2. https://www.iucnredlist.org.
Assessment ID
220189788
Taxon name
Napaeus bertheloti
Uploaded by
IUCN SSC Spain Species Specialist Group (EsSSG)
Taxonomic information
Scientific name
Napaeus bertheloti
Assessed taxon level
Species
Higher level taxonomic groupings
Invertebrates
Molluscs
Kingdom
Animalia
Phylum
Class
Order
Family
Genus
Napaeus
Species
bertheloti
Species authority
Location and scope
Scope (of the Assessment)
National
Countries included within the scope of the assessment
Spain
Does the assessment cover a marine EEZ area(s)?
Not assigned
Conservation Status
Assessed as
Least Concern
Criteria system used
IUCN

(see Assessment details)

Assessment details
Year assessed
2024
Assessors/contributors/reviewers listed
Groh, K. & Neiber, M.T.
Criteria system used
IUCN
Reference for methods given
IUCN (2001) IUCN Red List Categories and Criteria: Version 3.1. IUCN Species Survival Commission. IUCN, Gland, Switzerland and Cambridge, U.K. ii + 30pp.
Further information
Endemism (according to assessment)
Endemic to region
Yes
Habitat and systems
Ecological system type
Terrestrial
Freshwater
Marine
Publication
Global and Europe Assessment. The IUCN Red List of Threatened Species
IUCN. 2025. The IUCN Red List of Threatened Species. Version 2025-2. https://www.iucnredlist.org.
Assessment ID
220168491
Taxon name
Napaeus beguirae
Uploaded by
IUCN SSC Spain Species Specialist Group (EsSSG)
Taxonomic information
Scientific name
Napaeus beguirae
Assessed taxon level
Species
Higher level taxonomic groupings
Invertebrates
Molluscs
Kingdom
Animalia
Phylum
Class
Order
Family
Genus
Napaeus
Species
beguirae
Species authority
Location and scope
Scope (of the Assessment)
National
Countries included within the scope of the assessment
Spain
Does the assessment cover a marine EEZ area(s)?
Not assigned
Conservation Status
Assessed as
Vulnerable
Criteria system used
IUCN

(see Assessment details)

Assessment details
Year assessed
2024
Assessors/contributors/reviewers listed
Neiber, M.T. & Groh, K.
Criteria system used
IUCN
Reference for methods given
IUCN (2001) IUCN Red List Categories and Criteria: Version 3.1. IUCN Species Survival Commission. IUCN, Gland, Switzerland and Cambridge, U.K. ii + 30pp.
Further information
Endemism (according to assessment)
Endemic to region
Yes
Habitat and systems
Ecological system type
Terrestrial
Freshwater
Marine
Publication
Global and Europe Assessment. The IUCN Red List of Threatened Species
IUCN. 2025. The IUCN Red List of Threatened Species. Version 2025-2. https://www.iucnredlist.org.
Assessment ID
220200144
Taxon name
Napaeus bechi
Uploaded by
IUCN SSC Spain Species Specialist Group (EsSSG)
Taxonomic information
Scientific name
Napaeus bechi
Assessed taxon level
Species
Higher level taxonomic groupings
Invertebrates
Molluscs
Kingdom
Animalia
Phylum
Class
Order
Family
Genus
Napaeus
Species
bechi
Species authority
Location and scope
Scope (of the Assessment)
National
Countries included within the scope of the assessment
Spain
Does the assessment cover a marine EEZ area(s)?
Not assigned
Conservation Status
Assessed as
Least Concern
Criteria system used
IUCN

(see Assessment details)

Assessment details
Year assessed
2024
Assessors/contributors/reviewers listed
Groh, K. & Neiber, M.T.
Criteria system used
IUCN
Reference for methods given
IUCN (2001) IUCN Red List Categories and Criteria: Version 3.1. IUCN Species Survival Commission. IUCN, Gland, Switzerland and Cambridge, U.K. ii + 30pp.
Further information
Endemism (according to assessment)
Endemic to region
Yes
Habitat and systems
Ecological system type
Terrestrial
Freshwater
Marine
Publication
Global and Europe Assessment. The IUCN Red List of Threatened Species
IUCN. 2025. The IUCN Red List of Threatened Species. Version 2025-2. https://www.iucnredlist.org.