The mature larva of the squeak beetle Hygrobia nigra (Clark, 1862) (Paelobiidae) is studied for the first time based on detailed descriptions and illustrations of selected structures, with special emphasis on morphometry and chaetotaxy. A key for the identification of mature larvae of four of the six species of Hygrobia Latreille, 1804 known worldwide is presented. The phylogenetic relationship...

Holothuria leucospilota and Stichopus chloronotus are among the most widespread tropical sea cucumber species usually harvested for food medicine in Asian countries, which natural stocks have collapsed worldwide. Both can reproduce sexually asexually, a better understanding of their reproductive strategy provide useful information conservation purposes. To describe genetic structure diversity s...

TBik I.: Lamellar Inclusions in the Cytoplasm of Ciliated Cells. Acta vet. Bmo, 63, 1994: 95-97. Numerous osmiophilic inclusions, with matrix arranged into concentric lamellae, were found in a zone between the nucleus and the subciliary layer of mitochondria in the apical cytoplasm of ciliated cells of the tracheal epithelium in tlle wild cat (Felis silvestris) and the tortoise Testudo hermanni...