This article covers the origin and development of scientific interest in insect and amphibian developmental biology at the Department of Systematic Zoology and Zoogeography of the Jagiellonian University. The greater part of this historical account is devoted to Professor Stanislaw Smreczynski (1899-1975), the founding father of the Department, and comments on his biography and research achieve...

This paper describes the previously unknown larva of Drusus vinconi Sipahiler, 1992. Information on the morphology of the 5th larval instar is given, and the most important diagnostic features are illustrated. In the context of existing identification keys the larva of Drusus vinconi keys together with Drusus annulatus (Stephens, 1837), Drusus biguttatus (Pictet, 1834), Drusus ingridae Sipahile...

IN THE COURSE of war service in the Solomon Islands the writer was stationed on Stirling Island in the Treasuries from December 10, 1943, ro January 13, 1944. A collection of land snails was made and subsequently this was supplemented by a collection made on Mono Island at about the same time by Me. N. Gardner. Smith (1885) recorded a number of species collected by _Guppy from the group, but si...

Six species of filariae infect humans in sub-Saharan Africa. We hypothesise that these nematodes are able to polyparasitise human hosts by having successfully, through competitive exclusion, adapted to distinct niches. Despite inhabiting the same host, adult stages reside in different tissue sites. Microfilariae of some species exhibit temporal separation by reaching peak levels in the blood at...

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ABSTRACr.--We attempted to determine why the distribution of Atlapetes rufinucha (Rufousnaped Brush-finch; Emberizinae) is so patchy. This common, sedentary species is found in several discrete areas of the humid Andes separated by distances of hundreds of kilometers, yet the gaps contain seemingly suitable habitat. Mapping of 906 specimen localities by both latitude and elevation shows that th...