Invalidation du genre Austromicrophallus Szidat, 1964 (Trematoda : Microphallidae)

A new species of Microphallus (Trematoda: Microphallidae) from Venezuela.

During 1997-1999, a total of 94 crabs, Uca rapax were collected from La Sabana, La Ceiba and El Paujil, Sucre State, Venezuela. Of these 36 were infected with metacercariae. Two parasites were located in the abdominal muscles and one under the tissue of carapace and gonad. These metacercariae grew to adults in the following genera: Levinseniella, Microphallus and Maritrema, in the period of 2-5...

Pattern of Infection of Gammarus aequicauda (Amphipoda) with Metacercariae of Levinseniella tridigitata (Trematoda: Microphallidae)

We investigated the pattern of infection of Gammarus aequicauda (Amphipoda) with metacercariae of Levinseniella tridigitata (Trematoda: Microphallidae) in a natural lagoon. Prevalence was significantly higher in females than in males, whereas there was no difference between sexes in parasitic intensity. Despite the very large size of L. tridigitata metacercariae, the mean abundance increased wi...

3.6. Ultrastructure De La Spermiogenese Et Du Spermatozoïde Du Genre

This paper describes the ultrastructure of spermiogenesis and the mature spermatozoon of two Dipylidiidae cestodes, Joyeuxiella echinorhynchoides and J. pasqualei. In both species, spermiogenesis follows the type III described by Bâ and Marchand for the cyclophyllideans. Nevertheless, it is interesting to note the presence of striated roots associated with the centrioles. The spermatozoon prese...

Notes sur les Ixodidés du genre Hyalomma (Koch)

Etude biochimique du genre Brucella par une micromethode normalisee.