Overview

Distribution

Range Description

This species is endemic to Senegal where it is found only along the western edge of the Cap Vert Peninsula of the capital Dakar, from the districts of Yoff in the north to Dakar-Fann on the southern tip including Madeleine Island, a total coastline of approx 37 km (Monteiro et al. 2004). The whole of the adjacent land is highly developed and industrialised with associated problems including discharge of pollutants into the marine environment (UNEP 2009). This species is described as being at its most abundant from the headland in the districts of Almadies on the north-western tip to Ouakam approx 4 km to the south (Monteiro et al. 2004).
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
This species has been found in rocky habitats at depths between 1 and 12 m, with adults of the species typically growing to 50 mm in length (www.seashell-collector.com).

Systems
  • Marine
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
EN
Endangered

Red List Criteria
B1ab(iii,v)+2ab(iii,v)

Version
3.1

Year Assessed
2012

Assessor/s
Monnier, E.

Reviewer/s
Tenorio, M.J. & Seddon, M.

Contributor/s

Justification
This species is mainly found on the northern part of the peninsula, near the city of Dakar. It occurs within the environs of the city with associated marine pollution from the port and factories, as well as disturbance caused by shipping. The size of the specimens taken has been reducing over the last 15 years and the populations of the species are probably decreasing (E. Monnier pers. comm. 2011). Hence the species is assessed as Endangered B1ab(iii,v)+2ab(iii,v).
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Population

Population
The population has been declining in the region of Dakar (E. Monnier pers. comm. 2011).

Population Trend
Decreasing
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Threats

Major Threats
Marine pollution along the whole of this coastline, in particular around the Cap Vert Peninsular, from industrial and domestic discharges including sewage, chemicals and other toxins, presents a severe problem to marine creatures living in the area (UNEP 2009).
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Management

Conservation Actions

Conservation Actions
The population on the island lies in a protected area, although there are no known conservation measures currently in place for this species.
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Wikipedia

Conus hybridus

Conus hybridus Kiener, L.C., 1845

Conus hybridus, common name the hybrid cone, is a species of sea snail, a marine gastropod mollusk in the family Conidae, the cone snails and their allies.[2]

Like all species within the genus Conus, these snails are predatory and venomous. They are capable of "stinging" humans, therefore live ones should be handled carefully or not at all.

Contents

Description

The size of an adult shell varies between 22 mm and 47 mm.

Distribution

This species occurs in the Atlantic Ocean along Senegal.

References

  1. ^ Kiener, L. C., 1845. Spécies Général et Iconographie des Coquilles Vivantes, 2.
  2. ^ Conus hybridus Kiener, 1845.  Retrieved through: World Register of Marine Species on 25 July 2011.
  • Filmer R.M. (2001). A Catalogue of Nomenclature and Taxonomy in the Living Conidae 1758 - 1998. Backhuys Publishers, Leiden. 388pp.
  • Tucker J.K. (2009). Recent cone species database. September 4th 2009 Edition
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