Drawing

Description:

Codonoeca costata James-Clark, 1867. Lorica campanulate, divided by a constriction into two regions, the basal third obconical, tapering gradually towards its junction with the pedicel, the anterior two-thirds bulging out abruptly but narrowing again slightly towards the terminal aperture, the inflated portion divided longitudinally by about twenty or thity equal furrows, which impart a scalloped aspect to the anterior margin, pedicel equal in length to the lorica, somewhat uneven. Cell body elongate-ovate, the posterior end rounded, half filling the narrower proximal third of the lorica, the anterior end somewhat pointed, flagellum vibratile, projecting considerably beyond the orifice of the lorica, colour dingy yellow. Length of the body 17 microns This species should be transferred to other genus. Similar to Stephanoeca.