Coronatella Dybowski & Grochowski, 1894

Sinev, Artem Y., 2016, Key for identification of Cladocera of the subfamily Aloninae (Anomopoda: Chydoridae) from South-East Asia, Zootaxa 4200 (4), pp. 451-486 : 466

Coronatella Dybowski & Grochowski, 1894 s. lato

Parthenogenetic female short description. Body oval, of moderate height; head and valves without a keel. Sculpture of valves as longitudinal lines or tubercules. Posteroventral angle of valves without denticles or with 1–3 short closely spaced denticles. Rostrum short. Three main head pores with a narrow connection between them (two in Coronatella sp.); lateral head pores minute. Labral keel of moderate width, with rounded apex, without clusters of setulae on posterior margin.

Postabdomen short and wide, with convex postanal margin and broadly rounded distal angle; length about 2– 2.2 heights. Preanal angle well defined; postanal angle not defined. Postanal denticles short, not exceeding the width of postabdominal claw base. Postanal lateral groups of setulae with long and thick distalmost seta; in distalmost groups, length of setulae 1.5 widths of base of postabdominal claw. Postabdominal claw short, curved, with a basal spine of variable length.

Antennule without lateral aesthetascs, all terminal aesthetascs of similar length. Antennal seta without basal peg. Antenna with thin seta on basal segment of endopodite. Spine on basal segment of exopodite longer than middle segment. Spines on apical segments longer than apical segments. IDL of limb I with two setae; seta 1 absent; morphology of setae 2–3 varies from species to species.