| Aplexa rivalis | |
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| Shells of Aplexa rivalis. | |
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| Species: | A. rivalis |
| Binomial name | |
| Aplexa rivalis | |
Aplexa rivalis is a species of small air-breathing freshwater snail, an aquatic pulmonate gastropod mollusk in the family Physidae, a family which are sometimes known as the bladder snails.
Rivalis Aplexa has a thin shell levorotatory, featuring a large oval opening with parietal callus lip sharp and wide. The tentacles are filiform and foot is very long in the back. Ovigerous masses are constituted by transparent oval eggs variable number embedded in a gelatinous mass. [1]
This species occurs in:
Chaetogaster limnaei and Nais communis were found to be associated with Aplexa rivalis in Brazil. [2] In Venezuela it is found inhabiting ornamental ponds in the leaves of plants and vegetable crops, and are common in aquarium shops. [1]
The Apure River is a river of southwestern Venezuela, formed by the confluence of the Sarare and Uribante near Guasdualito, in Venezuela, at 7°15′N70°40′W, and flowing across the Llanos into the Orinoco. It provides significant transportation in the area.
Francisco Mago Leccia (“Mago”) was born in Tumeremo, Bolívar State, Venezuela on May 21, 1931 and died in Puerto La Cruz, Anzoátegui State, Venezuela on February 27, 2004. Mago was a distinguished Venezuelan ichthyologist who specialized in electric fish of the rivers and lagoons of South America, particularly of Venezuela. His education was Docent in Biology and Chemistry graduate from the “Instituto Pedagógico de Caracas”,, Master of Sciences from the University of Miami, Florida, U.S.A., Doctor in Sciences from Universidad Central de Venezuela. His Doctoral Thesis was entitled: “Los peces Gymnotiformes de Venezuela: un estudio preliminar para la revisión del grupo en la América del Sur”.
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