Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Mollusca Gastropoda Neogastropoda Conidae

Scientific Name: Conus teodorae
Species Authority: Rolán & Fernandes in Rolán, 1990

Assessment Information [top]

Red List Category & Criteria: Vulnerable D2 ver 3.1
Year Published: 2012
Date Assessed: 2011-10-29
Assessor(s): Tenorio, M.J.
Reviewer(s): Monnier, E. & Seddon, M.
Facilitator/Compiler(s): Seddon, M. & Peters, H.
This species is endemic to the Cape Verde Islands where it is found off the west coast of the island of Boavista. Although this species is highly restricted in its range and currently relatively scarce in the market, the only threats are to the southern part of the range around Sal-Rei and there are no known conservation measures currently in place for this species. The species is considered to be Vulnerable D2.

Geographic Range [top]

Range Description:

This species is endemic to the Cape Verde Islands where it is found only off the northwest coast of Boavista Island at Baía Teodora and Sal Rei (Monteiro et al. 2004) along a coast of approx 4.5 km in length. There are possible populations around the northernmost peninsula of the island.

Countries occurrence:
Cape Verde
FAO Marine Fishing Areas:
Atlantic – eastern central
Estimated area of occupancy (AOO) - km2:9
Number of Locations:1
Lower depth limit (metres):6
Upper depth limit (metres):1
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:The species is scarce in samples with a restricted range.
Current Population Trend:Stable
Additional data:
Continuing decline of mature individuals:Unknown
Extreme fluctuations:UnknownPopulation severely fragmented:Unknown

Habitat and Ecology [top]

Habitat and Ecology:This species is found on stones and rocks at depths of 0.5 to 6 m (Monnier 2001)

Use and Trade [top]

Use and Trade: There is very limited offtake of this species. In common with all small Conus species, the shells of this species are only traded for the specialist collector.  Their small size and scarcity makes them less appealing than larger shells (M. J. Tenorio pers. comm. 2011).

Threats [top]

Major Threat(s):

This species is only found in a single small bay. It is only under pressure in the southern part of the range around Sal-Rei. As such, much of the population is secure and there is limited offtake impacting the species.

Conservation Actions [top]

Conservation Actions: This species is highly restricted in its range and scarce in the market and would benefit from further research into abundance, level of offtake and threats before any action plan can be formulated. There are no known conservation measures currently in place for this species.

Classifications [top]

9. Marine Neritic -> 9.2. Marine Neritic - Subtidal Rock and Rocky Reefs
suitability: Suitable  major importance:Yes
9. Marine Neritic -> 9.3. Marine Neritic - Subtidal Loose Rock/pebble/gravel
suitability: Suitable  major importance:Yes

In-Place Research, Monitoring and Planning
In-Place Land/Water Protection and Management
In-Place Species Management
In-Place Education
5. Biological resource use -> 5.4. Fishing & harvesting aquatic resources -> 5.4.1. Intentional use: (subsistence/small scale)
♦ timing: Ongoing ♦ scope: Minority (<50%) ♦ severity: No decline ⇒ Impact score: Low Impact: 4 
→ Stresses
  • 2. Species Stresses -> 2.1. Species mortality

9. Pollution -> 9.2. Industrial & military effluents -> 9.2.1. Oil spills
♦ timing: Ongoing ♦ scope: Minority (<50%) ♦ severity: Negligible declines ⇒ Impact score: Low Impact: 4 
→ Stresses
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

1. Research -> 1.2. Population size, distribution & trends
1. Research -> 1.5. Threats

♦  Sport hunting/specimen collecting
 International : ✓ 

Bibliography [top]

Filmer, R.M. 2001. A Catalogue of Nomenclature and Taxonomy in the Living Conidae, 1758-1998. Backhuys Publishers, Leiden, The Netherlands.

IUCN. 2012. IUCN Red List of Threatened Species (ver. 2012.1). Available at: (Accessed: 19 June 2012).

Monteiro, A., Tenorio, M.J. and Poppe, G.T. 2004. The Family Conidae, The West African and Mediterranean species of Conus. In: Poppe, G.T and Groh, K. (eds), A Conchological Iconography, pp. 270. ConchBooks, Hackenheim.

Citation: Tenorio, M.J. 2012. Conus teodorae. In: The IUCN Red List of Threatened Species 2012: e.T192530A2110172. . Downloaded on 04 October 2015.
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