The National Red List Project

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Assessment ID
220236769
Taxon name
Xerocrassa subrogata
Uploaded by
IUCN SSC Spain Species Specialist Group (EsSSG)
Taxonomic information
Scientific name
Xerocrassa subrogata
Assessed taxon level
Species
Higher level taxonomic groupings
Invertebrates
Molluscs
Kingdom
Animalia
Phylum
Class
Order
Family
Genus
Xerocrassa
Species
subrogata
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
2023
Assessors/contributors/reviewers listed
Martínez-Ortí, A.
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
220244004
Taxon name
Xerocrassa roblesi
Uploaded by
IUCN SSC Spain Species Specialist Group (EsSSG)
Taxonomic information
Scientific name
Xerocrassa roblesi
Assessed taxon level
Species
Higher level taxonomic groupings
Invertebrates
Molluscs
Kingdom
Animalia
Phylum
Class
Order
Family
Genus
Xerocrassa
Species
roblesi
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
Martínez-Ortí, A.
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
214257788
Taxon name
Xerocrassa ripacurcica
Uploaded by
IUCN SSC Spain Species Specialist Group (EsSSG)
Taxonomic information
Scientific name
Xerocrassa ripacurcica
Assessed taxon level
Species
Higher level taxonomic groupings
Invertebrates
Molluscs
Kingdom
Animalia
Phylum
Class
Order
Family
Genus
Xerocrassa
Species
ripacurcica
Species authority
Location and scope
Scope (of the Assessment)
Regional (multi-national)
Countries included within the scope of the assessment
Spain
France
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
Martínez-Ortí, A.
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
No
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
221483341
Taxon name
Xerocrassa penalveri
Uploaded by
IUCN SSC Spain Species Specialist Group (EsSSG)
Taxonomic information
Scientific name
Xerocrassa penalveri
Assessed taxon level
Species
Higher level taxonomic groupings
Invertebrates
Molluscs
Kingdom
Animalia
Phylum
Class
Order
Family
Genus
Xerocrassa
Species
penalveri
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
2023
Assessors/contributors/reviewers listed
Martínez-Ortí, A.
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
220209734
Taxon name
Xerocrassa nyeli
Uploaded by
IUCN SSC Spain Species Specialist Group (EsSSG)
Taxonomic information
Scientific name
Xerocrassa nyeli
Assessed taxon level
Species
Higher level taxonomic groupings
Invertebrates
Molluscs
Kingdom
Animalia
Phylum
Class
Order
Family
Genus
Xerocrassa
Species
nyeli
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
2023
Assessors/contributors/reviewers listed
Gómez-Moliner, B.J.
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
220264514
Taxon name
Xerocrassa moraguesi
Uploaded by
IUCN SSC Spain Species Specialist Group (EsSSG)
Taxonomic information
Scientific name
Xerocrassa moraguesi
Assessed taxon level
Species
Higher level taxonomic groupings
Invertebrates
Molluscs
Kingdom
Animalia
Phylum
Class
Order
Family
Genus
Xerocrassa
Species
moraguesi
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
2023
Assessors/contributors/reviewers listed
Martínez-Ortí, A.
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
220265096
Taxon name
Xerocrassa montserratensis
Uploaded by
IUCN SSC Spain Species Specialist Group (EsSSG)
Taxonomic information
Scientific name
Xerocrassa montserratensis
Assessed taxon level
Species
Higher level taxonomic groupings
Invertebrates
Molluscs
Kingdom
Animalia
Phylum
Class
Order
Family
Genus
Xerocrassa
Species
montserratensis
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
2023
Assessors/contributors/reviewers listed
Martínez-Ortí, A.
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
220264937
Taxon name
Xerocrassa molinae
Uploaded by
IUCN SSC Spain Species Specialist Group (EsSSG)
Taxonomic information
Scientific name
Xerocrassa molinae
Assessed taxon level
Species
Higher level taxonomic groupings
Invertebrates
Molluscs
Kingdom
Animalia
Phylum
Class
Order
Family
Genus
Xerocrassa
Species
molinae
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
2023
Assessors/contributors/reviewers listed
Martínez-Ortí, A.
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
214180385
Taxon name
Xerocrassa lacipensis
Uploaded by
IUCN SSC Spain Species Specialist Group (EsSSG)
Taxonomic information
Scientific name
Xerocrassa lacipensis
Assessed taxon level
Species
Higher level taxonomic groupings
Invertebrates
Molluscs
Kingdom
Animalia
Phylum
Class
Order
Family
Genus
Xerocrassa
Species
lacipensis
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
Critically Endangered
Criteria system used
IUCN

(see Assessment details)

Assessment details
Year assessed
2023
Assessors/contributors/reviewers listed
Gómez-Moliner, B.J.
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
220264720
Taxon name
Xerocrassa jimenensis
Uploaded by
IUCN SSC Spain Species Specialist Group (EsSSG)
Taxonomic information
Scientific name
Xerocrassa jimenensis
Assessed taxon level
Species
Higher level taxonomic groupings
Invertebrates
Molluscs
Kingdom
Animalia
Phylum
Class
Order
Family
Genus
Xerocrassa
Species
jimenensis
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
2022
Assessors/contributors/reviewers listed
Gómez-Moliner, B.J. & Arrébola, 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.
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.