Revision of the elegans-group of Alona s. lato and its status as a subgenus of Coronatella Dybowski & Grochowski, 1894 (Cladocera: Anomopoda Chydoridae)
Author
Sinev, Artem Y.
text
Zootaxa
2020
2020-02-14
4732
4
501
526
journal article
24037
10.11646/zootaxa.4732.4.1
66a0b50e-47ae-443f-a2ef-84409dc5acd9
1175-5326
3667290
33361FFC-9C1C-4046-9F59-456BB9A081CE
Subgenus
Coronatella
(
Ephemeralona
)
subgen. nov.
Type
species:
Alona elegans
Kurz, 1875
.
Etymology.
Subgenus is named after the Latin “
ephemeral
” - temporary, and the generic name
Alona
where it was lumped in, as most species of the group inhabit temporary water bodies.
Diagnosis.
Medium to large-size
Coronatella
, maximum length of adult female from
0.55 to 0.75 mm
. Sculpture of the valves as densely or sparsely spaced lines. Posteroventral angle of valves with numerous uniform setulae. Seta arising from basal segment of antennal endopodite thick and long, much longer than endopodite. Accessory seta of limb I long, almost as long as the ODL seta. Setae 2-3 of IDL armed with uniform thin setulae. Exopodite of limb II with very short, rudimentary seta.