Bosmina Baird, 1846

Pascual, Jhaydee Ann F., Rizo, Eric Zeus C., Han, Boping, Dumont, Henri J. & Papa, Rey Donne S., 2014, Taxonomy and distribution of four Cladoceran families (Branchiopoda: Cladocera: Moinidae, Bosminidae, Chydoridae and Sididae) in Philippine inland waters, Raffles Bulletin of Zoology 62, pp. 771-794 : 773

Genus Bosmina Baird, 1846

The body is more or less globular ranging from 0.4–0.8 mm in length. The head and the carapace have no demarcation. Head shield has three types of pores (one dorsal, one frontal and two paired lateral ones). The female rostrum has an elongated conical extension where the antennules are inserted. Antennules are elongated, recurved, immobile, pluri-articulated and with sensory setae on the anterior border. Ocellus is absent. The carapace has posterior border that is more or less rectilinear ventrally ending in a mucro. It has six pairs of trunk limbs but the last pair reduced to a small, naked lobe. First limb of the male has a very distinct copulatory hook. Second limb contains marginal setae of endopodite. The exopod of the third limb has seven setae. The fourth and fifth limb has eight and five setae respectively. The postabdomen is rectangular in shape with anal opening in apical position.