IUCN SSC Mid-Atlantic Island Invertebrates Specialist Group


BackMonilearia tumulorum (Webb & Berthelot, 1833)

Monilearia tumulorum (Webb & Berthelot, 1833)

  • Kingdom: Animalia
  • Phylum:
  • Class: Mollusca
  • Order: Gastropoda
  • Family: Cochlicellidae
CR Critically Endangered
IUCN Red List Status:

Countries of Occurrence:
Spain - Canaries


Groh, K. & Neubert, E.

Cuttelod, A. & Bilz, M.


Facilitators / Compilers/s:

Assessment Rationale:

This species is assessed as Critically Endangered (CR) B1ab(iii)+2ab(iii), as it has a restricted range (one location and an area of occupancy of 4 km2), with a small population which is currently threatened as a result of military activities, as it lies within a military training area, with future threats from urban expansion if the military training area designation is removed. Recommended conservation actions include the designation of a 'reserva natural' for the species.

Geographic Range:

This species is endemic to the island of Gran Canaria. It lives restricted on La Isleta, a peninsula north of Las Palmas de Gran Canaria.

Spain - Canaries
Extent of Occurrence (EOO):
Area of Occupancy (AOO):
4 (km2)
Elevation Lower Limit:
Elevation Upper Limit:
Biogeographic Realms:
Endemic Canaries


There are no data on the population size or trend.

Habitat and Ecology

This is a ground-dwelling species found in typical lowland canary island vegetation often under stones or within stone walls.

Major Threat(s):

The major threat comes from habitat destruction as the result of military activities within the military range. In the future there are proposals to remove the military range and use the site for urban expansion.

Conservation Actions

The habitat requires conservation in order to protect the species. Further data would be required for long-term monitoring of the habitat trends. This species is not listed as Critically Endangered on the Spanish Red List by Verdu and Galante (2009) and is not on the register of Endangered Species for Canary Islands. Actions recommended include the provision of a protected area from Monte del Faro to Montana Colorada.