Larval stages of laboratory reared harpacticoid copepod Euterpina acutifrons (Dana)

S.C. Goswami


Laboratory reared larvae of Euterpina acutifrons from an estuary have been described. The complete development took 16 to 18 days at room temperature (25 degrees to 27 degrees C) and at salinity ranging from 32 ppt to 35 ppt. Six naupliar and five copepodid stages precede the adult. The nauplii in shape resemble those of the other free living harpacticoid copepods except for the presence of a characteristic blunt process at the posterior end of the body. The prehensile endopodite of the antenna is poorly developed and the exopodite of the mandible is long, 3-segmented with plumose setae. The development of the copepodids is gradual with minor changes in the size of the body segments and in the number of spines and setae on the paired legs


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