Revision of the genus Eucyclops (Claus, 1893) and subfamily Eucyclopinae of the world fauna

Abstract

тельный ключ для 12 родов подсемейства Eucyclopinae. Оставшиеся виды рода Eucyclops разделены на 9 новых подродов: Eucyclops (Eucyclops), Eucyclops (Breviramocyclops), Eucyclops (Ciliocyclops), Eucyclops (Denticyclops), Eucyclops (Macrurocyclops), Eucyclops (Mrazekicyclops), Eucyclops (Sarsicyclops), Eucyclops (Speratocyclops), and Eucyclops (Subterrocyclops). Приводятся описания и иллюстрации для типовых видов каждого из подродов, а также определительные ключи для 9 новых подродов и подсемейства Eucyclopinae в целом. Для каждого подрода указывается общее количество видов и определительные ключи для них.

New records of continental cyclopids (Crustacea: Copepoda: Cyclopiformes) from Eastern Siberia and Russian Far East

“…Due to some problems of this area, including geopolitical, it remains largely not yet covered by modern studies of biodiversity. The biological diversity or species composition of the copepod fauna of modern Russia is continuously being clarified both through revisions common to the country and by specifying regional faunas [Rylov, 1948;Mazepova, 1978;Monchenko, 1974;Alekseev, 1998Alekseev, , 2015Alekseev, , 2019Alekseev, , 2020. This can be explained by the description of new species, clarification or change of species names, the study of new areas, especially such as Baikal or the Caspian Sea, characterized by high faunistic endemism [Mazepova, 1978;Monchenko, 2003].…”

Taxonomic status of Macaronesian Eucyclops agiloides azorensis (Arthropoda: Crustacea: Copepoda) revisited – morphology suggests a Palearctic origin

“…In that same paper Alekseev and Defaye changed the taxonomic rank of E. roseus (subtropical and temperate Asia, East Africa and southeast Europe) and E. miracleae (Spain) from species to subspecies (see Alekseev & Defaye 2011: 63). This decision has been confirmed in a current publication of Alekseev (2019), in which he listed four subspecies of E. agiloides (E. a. agiloides, E. a. roseus, E. a. miracleae and E. a. azorenis).…”

“…Eucyclops leschermoutouae differs from E. azorensis in the length proportion of caudal setae VI and III (seta VI / seta III < 1 in E. leschermoutouae, while seta VI / seta III > 1 in E. azorenis), and the relative length of the lateral terminal spine of P4 enp3 (nearly as long as P4 enp3 in E. leschermoutouae, vs distinctly shorter in E. azorensis) (comparisons were based on Alekseev & Defaye 2004). Applying the subgeneric classification currently proposed by Alekseev (2019), Eucyclops azorensis would belong to the subgenus Speratocyclops Alekseev, 2019, while the morphologically close E. serrulatus and all the Western Mediterranean species mentioned above, with the exception of E. leschermoutouae, would be members of the subgenus Eucyclops s. str. We hesitate to accept such a grouping.…”

“…The morphology of E. agiloides remains poorly understood, although the species has been recorded in several sites in tropical Africa and Asia, and is currently associated with three other taxa (E. azorensis, E. roseus Ishida, 1997 andE. miracleae Alekseev, 2010) in subspecies relationships (Alekseev & Defaye 2011;Alekseev 2019).…”

First Insight into Groundwater Copepods of the Polish Lowland

“…E. serrulatus is a morphological and ecologically variable species and was recently redescribed [31] and further serrulatusgroup was redefined [32]. This group includes 17 species and subspecies, which differ from each other in the presence of microcharacters of the antennary basipodite and the P4 coxopodite [33]. Our species was E. serrulatus s. stricto, with three distalmost segments of antennule with a narrow hyaline membrane of regular shape (Figure 4D), and a very characteristic spine of coxopodite of P4 with a gap among the strong teeth-like setules on the outer side (Figure 4N).…”