P.E. Müller, 1867
Body oval. Carapace ending in a long spine (Evadne spinifera, female). Antennal elevator muscles diverging dorsally.
Exopods of thoracic limbs 1-4 with 2,2,2,1 setae (Evadne spinifera, exopods).
Resting eggs unknown (Evadne spinifera, female; Evadne spinifera, embryos).
Total length female (standard length): 0.7-1.4 mm (0.5-0.7 mm).
Total length male: 0.6-1.3 mm (estimated values, 0.5-0.7 mm).