A total of 47 non-marine ostracods are listed from Algeria including both, the species reported in literature and those collected from 117 water bodies in humid, semi-arid and arid regions of Algeria between 2012 and 2016. Twenty seven taxa were identified with three species (Cypris pubera, Limnocythere inopinata, Potamocypris variegata) new to Algeria and nine taxa (Eucypris kerkyrensis, E. lilljeborgi, Heterocypris rotundata, Ilyocypris decipiens, I. cf. japonica, Isocypris beauchampi, Potamocypris smaragdina, P. villosa, Prionocypris zenkeri) as new reports for North Africa. Considering the presence of highly diverse water bodies, seasonal differences and difficulties of access to water sources, the number of species listed in here is believed to be underestimated. Further studies are required to complete this list.
We present an annotated checklist of the Cladocera (orders Ctenopoda and Anomopoda) from the continental waters of Algeria, based on published records and original data from analysis of samples from 112 water bodies collected in 2012-2016 in humid and semi-arid regions of the country. Thirty six species have been identified in this study. Three taxa (Daphnia obtusa, D. mediterranea and Ceriodaphnia cf. quadrangula, being an undetermined taxon belonging to the Ceriodaphnia genus) are new to Algeria and eight (Daphnia curvirostris, D. galeata, Macrothrix dadayi, Scapholeberis rammneri, Acroperus angustatus, Ovalona nuragica, O. orellanai and Coronatella anemae) are new to the Maghreb in general. The number of Cladoceran species recorded in Algeria has been raised to 81. More sampling efforts are needed to make this list more complete.
Macaronesia, with the exception of the Azores, is one of the few Palearctic provinces where basic taxonomic information on the freshwater copepods is still lacking. We redescribed Eucyclops azorensis, a cyclopid crustacean so far known only in the Azores, and report the occurrence of this species in Algeria and Madeira Island. Eucyclops azorensis was formerly considered to be a subspecies of E. agiloides (East Africa); therefore, the latter species is redescribed here as well based on type and non-type material. Morphological comparisons between E. azorensis, E. agiloides and other taxa (E. serrulatus and E. roseus), assumed to be closely related to our target species, support a closer relationship between E. azorensis and E. serrulatus (Palearctic) than between E. azorensis and E. agiloides (Afrotropical). The slight differences between E. azorensis and E. serrulatus in the surface ornamentation of the antennal coxobasis and intercoxal sclerites of legs 1 and 4 suggest a relatively young separation of these lineages. Eucyclops agiloides is morphologically close to E. roseus (temperate and subtropical Asia, southeastern Europe, East Africa). The numerous and clear-cut differences indicate a species rather than subspecies-level differentiation between E. agiloides and E. roseus, unlike what was formerly proposed in the taxonomic literature.
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