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Melanoides tuberculata de taille identique pour comparaison |
Pachymelania fusca
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Melanoides tuberculata de taille identique pour comparaison |
Family
des Pleuroceridae
Sub-family: Pleurocerinae
Origin: habitat ranges from Senegal to Angola. My specimens come from Cameroon and were collected some kilometres from the mouth of river Wouri.
Recent distribution: /
Description: highly varied sculpture with 3 named forms - "granulosa" with numerous low ribs crossed by spiral grooves; "fusca" with two greatly elevated spiralridges; and "mutans" which is carinate above but granular below.
Scientific Name: Pachymelania fusca (Gmelin, 1791)
Size: maximum 4,5 cm.
Breething: aquatic, through gills.
Temperature: 22 to 32°C
Utility: eats fish food surplus and moves the soil.
Particularities: adapts perfectly to freshwater but prefers brackish water.
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| Pachymelania fusca Var. granifera. | |
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| Pachymelania fusca Var. fusca. | |
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| Pachymelania fusca Var. mutans. |
Thanks to Martin Khol and Richard Goldberg who provided me the elements to identify this species.