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The genital morphology of female Pholcus phalangioidesis examined to clarify the composition of the uterus externus and the place of sperm storage in this species. Two conspicuous pore plates serve as exits for glandular secretion that gets discharged into the uterus externus. The secretion...
Pholcus phalangioidesdoes not possess receptacular seminis. The uterus externus (genital cavity) itself functions as a sperm storage structure. Two accessory glands are situated in the dorsal part of the uterus externus; they discharge their secretory product into the genital cavity.
The morphological evolution of the cutaneous venom during ontogenesis in the tree‐frog Hyla arborea arboreais described using light and electron microscopy. Venom biosynthesis involves the rough endoplasmic reticulum and Golgi stacks. The secretory product first appears at the hind‐limb larval...
The structure and function of the captaculum in Graptacme calamuswere studied using light microscopy, videomicrography, and transmission electron microscopy. Graptacme calamusutilizes a longitudinal ciliary band to transport small food particles along the outstretched filament. The head of the...
The ultrastructure of the central nervous system of four species of the Geocentrophoragroup (Prorhynchida, Lecithoepitheliata) has been studied with Geocentrophora waginias a model organism. This is the first ultrastructural study of the nervous system in flatworms of the endemic...
Using SEM and TEM techniques, the trichobothria of Acrogalumna longipluma(Galumnidae, Pterogasterina) were studied in relation to a variety of other moss mites. Each sensillum is composed of a mostly solid bothridial seta and a very complex socket, the bothridium. The setal base bends sharply as...
The structure and organization of the organic matrix of the cusps of the major lateral teeth of the chiton Acanthopleura hirtosahave been examined using conventional light and transmission electron microscopy techniques and by using the protein ferritin as an ultrastructural probe. The results...
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