Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Mollusca Gastropoda Sorbeoconcha Thiaridae

Scientific Name: Melanoides pergracilis
Species Authority: (Von Martens, 1897)

Assessment Information [top]

Red List Category & Criteria: Data Deficient ver 3.1
Year Published: 2010
Date Assessed: 2004-05-30
Needs updating
Assessor(s): Kaunda, E., Magombo, Z., Kahwa, D. & Mailosa, A.
Reviewer(s): Seddon, M.B. & Kristensen, T. (Mollusc Red List Authority)
This species is endemic to region found in Lake Malawi, where it is facing a declining quality of habitat, as region is already very disturbed with sedimentation and pollution. It is only found in a limited range due to habitat preferences. However more information is needed on its range, locations and ecology before a full assessment can be carried out.
Previously published Red List assessments:
2004 Data Deficient (DD)

Geographic Range [top]

Range Description: This species is endemic to Lake Malawi.
Countries occurrence:
Malawi; Mozambique
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: Population densities provide in Genner and Michel (2003) for mixed Malawi Melanoides state a max of 1370 individuals/m2. Louda et al. (1983) states 123 individuals/m2 at Cape Maclear, shallow water.
Current Population Trend: Unknown
Additional data:
Population severely fragmented: No

Habitat and Ecology [top]

Habitat and Ecology: It is found in soft sediment (silt, sand, fine gravel) in Lake Malawi. It has been dredged from 10-90 feet.
Systems: Freshwater

Threats [top]

Major Threat(s): No information available.

Conservation Actions [top]

Conservation Actions: No information available.

Citation: Kaunda, E., Magombo, Z., Kahwa, D. & Mailosa, A. 2010. Melanoides pergracilis. The IUCN Red List of Threatened Species 2010: e.T44254A10882710. . Downloaded on 07 October 2015.
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