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ABSTRACT:Parechiniscus Cuénot, 1926 is a monotypic genus of tardigrades that includes among its characteristic features the uncommon trait of unpaired dorsal cuticular plates at the position of each of the first three leg pairs. Our morphological analyses of Irish Parechiniscus specimens, which included scanning electron microscopy, led to a new interpretation of configuration and details of the dorsal cuticular plate morphology in this genus. We also provide comments on Parechiniscus morphometry, sensory organs and sexual system. New emendations to the genus diagnosis based on our findings are proposed. Additionally, we record Echiniscus spiniger Richters, 1904 and Testechiniscus spitsbergensis spitsbergensis (Scourfield, 1897) from Ireland for the first time.

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Periventricular-intraventricular hemorrhage is a serious problem in the premature infant, and is often associated with poor neurological outcome. The purpose of this paper is to review the literature on the origin, etiology, and incidence of PVH-IVH, to discuss current methods of diagnosis and prevention, and to discuss the neurological outcome of the survivors. Suggestions for additional research are presented.