The development of freshwater science in Britain, and British contributions abroad, 1900-2000

This article outlines the development of freshwater science between 1900 and 2000 and in particular traces British contributions, both to a deepened knowledge of specifics and to their interrelation as environmental and ecological science. The author provides a selected bibliography of important publications relevant to the topic of the article.

La Ictiología Argentina en Imágenes: II-SigloXX (1900-1950).

ProBiota genera este modesto documento con el propósito de compartirlo con el “Universo ictiológico” y con aquellos que investigan y describen la historia de la ciencia regional. Estas imágenes del pasado y presente de la ictiología nacional conforman un testimonio dirigido al futuro. Aunque, como dijo James Joyce: - No hay pasado ni futuro, todo fluye en un eterno presente -

A new record of Excirolana Orientalis (Dana, 1853), a cirolanid genus and species (Isopoda, Flabellifera) from the Pakistan coast

Excirolana orienta/is (Dana, 1853) belonging to the Cirolanidae, hitherto unknown from Pakistan, is collected from the rocky intertidal region of Manora Island, Karachi coast The specimens are fully described and illustrated. A list of the known species of the genus Excirolana is also provided since the genus is also first time reported from here.