Description dʼune Nouvelle Espѐce du Genre Eryx, Eryx Reinhardtii

Excretion in reptiles; nitrogen constituents of the urinary concretions of the viviparous snake Eryx thebaicus, Reuss.

The urinary constituents of this animal are excreted in the form of dry masses or concretions. They are generally white in color, but they sometimes contain greenish yellow patches. Unlike those of Zamenis diadema (1) they are not brittle, but rather hard. When examined microscopically they were found to consist principally of club-shaped crystals together with rosettes and globular crystals sh...

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...

Les Algues Dasycladales du Permien et du Trias Nouvelle tentative d’inventaire bibliographique, géographique et stratigraphique

1 adresse actuelle: PDD/Zakum, ADMA-OPCO, P.O.Box303, Abu Dhabi, UnitedArab Emirates ([email protected]); adresse permanente: Le Clair Côteau, 14-A Rue de la Guaize, 28130 Maintenon, France. 2 Institute of Geology, Sachsova 2, P.O.Box 268, HR-10000 Zagreb, Croatia. Abstract The present work enlists as comprehensively as possible the Permian and Triassic Dasyclad algae. For each species, local...

Notes sur les Ixodidés du genre Hyalomma (Koch)

Etude biochimique du genre Brucella par une micromethode normalisee.