Overview

Distribution

Range Description

This species is endemic to Senegal from Dakar south to Mbour a coastal distance of approx 95 km. Estimated AOO is based on headlands and rocky areas, not in the intervening regions with sandy patches, as the species is not present there, however, as the major threat is pollution, the number of locations is estimated as 4-6. There is no information on the fragmentation of this species. However, much of the land adjoining the entire length of this coast has been developed. Dakar at the northern end of its range is a large metropolis (pop 2.5m) with resultant industrial and commercial pollution risk and Mbour (pop 0.2m) at the southern end is also source of serious marine pollution (UNEP 2009).

A separate and distinct population occurs off Gorée Island at the southern tip of the Dakar peninsular (Monteiro et al. 2004).
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
This species occurs in rocky areas and headlands where it is found in shallow water down to approx 5 m. Adults of the species typically grow to 50 mm in length.

Systems
  • Marine
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
VU
Vulnerable

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

Version
3.1

Year Assessed
2012

Assessor/s
Monnier, E.

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

Contributor/s

Justification
This species is found along a coastline that is subject to domestic and industrial pollution in addition to risks associated with commercial shipping including oil transporation, especially into Dakar at the northern end of its range. There have been declining populations in the north due to pollution, and in the south due to recreational activities disturbing habitats (E. Monnier pers. comm. 2011). However, at present, trade prices for shells do not indicate scarcity. The species is considered to be Vulnerable under the B criterion: VU B1ab(iii)+2ab(iii).
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Population

Population
There are no records of population levels for this species in the literature. There have been declining populations in the north due to pollution, and in the south due to recreational activities disturbing habitats (E. Monnier pers. comm. 2011).

Population Trend
Unknown
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Threats

Major Threats
There have been declining populations in the north, due to pollution. Its limited distribution along a highly developed coastline including the port facilities of Dakar indicates that there will be stresses arising from effluent and industrial and marine pollution along most of this species' range.

Marine pollutants 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).

In the south, the population is impacted by recreational activities disturbing habitats.
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Management

Conservation Actions

Conservation Actions
There are no known conservation measures currently in place for this species.
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Wikipedia

Conus guinaicus

Conus guinaicus is a species of predatory sea snail, a marine gastropod mollusk. It is part of the genus Conus, more popularly known as cone snails, cone shells or cones. [2]

Description[edit]

The size of an adult shell varies between 22 mm and 60 mm. The inflated shell is rather thin. The spire and lower portion of the body whorl are striate. The color of the shell is chestnut or olivaceous, with usually two bands of irregular white cloudings, and scattered white spots. The aperture has a chocolate color, faintly white-banded in the middle. [3]

Distribution[edit]

This species occurs in the Atlantic Ocean along Senegal.

Conus guinaicus with a different color and pattern

Gallery[edit]

References[edit]

  1. ^ Bruguière, J. G., and Hwass, C. H., 1792. Cone. Encyclopédie Méthodique: Histoire Naturelle des Vers, 1: 586 -757
  2. ^ a b WoRMS (2010). Conus guinaicus Hwass in Bruguière, 1792. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=224280 on 2011-07-25
  3. ^ George Washington Tryon, Manual of Conchology vol. VI p. 65; 1879
  • Pin, M.; Tack, K.D.L. (1995). Les cônes du Sénégal. [The Conidae of Senegal]. La Conchiglia 277(Suppl.): 1-55,
  • Tucker J.K. (2009). Recent cone species database. September 4th 2009 Edition
  • Filmer R.M. (2001). A Catalogue of Nomenclature and Taxonomy in the Living Conidae 1758 - 1998. Backhuys Publishers, Leiden. 388pp.
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