Nitokra divaricata Chappuis, 1923

KARPOWICZ, Maciej, 2016, New data to the knowledge on the Harpacticoida (Crustacea, Copepoda) fauna in Poland, Fragmenta Faunistica 59 (2), pp. 87-98 : 89-90

Nitokra divaricata Chappuis, 1923

Location, ecology. Single female was found in Stratiotes aloides vegetation of Lake Tyrkło in the Masurian Lakeland, however, the species is known as a commensal of common crayfish ( Janetzky et al. 1996).

General distribution and biology. Nitokra divaricata is known from the Russian Federation, Romania, Germany and Poland. It lives in the gill cavity and on the body surface of common crayfish, and its species range likely overlaps with the range of these decapods ( Borutzky 1952).

Distinguishing features. Nitokra divaricata is closely related to N. hibernica , and these species exhibit great similarity in the structure of the swimming legs. The two species can be distinguished by the morphology of P1 and P5. Proximal segment of endopodite of P1 reaching middle of distal segment of exopodite in N. diverciata .