Dadaya macrops (Daday, 1898)

Sinev, Artem Y. & Semenyuk, Irina I., 2021, Males and ephippial females of Oriental Chydoridae (Cladocera: Anomopoda) from Cat Tien National Park, South Vietnam, Zootaxa 4941 (3), pp. 381-398 : 394

Dadaya macrops (Daday, 1898)

Common species in Cat Tien ( Sinev & Korovchinsky 2013). Species was present in all samples from locality 6. Two ephippial females were found in locality 6 on 5.12.2018. Morphology of found specimens fully agrees with the redescription of species ( Rajapaksa & Fernando 1982). Ephippial female was studied using SEM for the first time.

Ephippial female. Body ( Fig. 9 E–F) high oval in lateral view, higher than in parthenogenetic female, with highly arched dorsal margin; height-length ratio 0.78. Ephippium rounded, high, with expressed dorsal keel and large, prominent egg locules, covered by thick, irregular polygonal sculpture, more expressed outside egg locules. Ventral margin of ephippium well-defined, prominent, rest of the valve covered by thin regular polygonal sculpture, same as in parthenogenetic female.

Figures

FIGURE 9. Chydorus reticulatus Daday, 1898 from locality 2. Ephippial female (deformed):A, lateral view; B, frontal view; C– D, sculpture of ephippium. Dadaya macrops (Daday, 1898). from locality 6. Ephippial female: E, lateral view; F, ephippium.