Journal of Plankton Research Vol.25 no.8 pp.939-948, 2003
© Oxford University Press 2003
Mesaiokeras hurei n. sp. (Copepoda, Calanoida, Mesaiokeratidae) from the Adriatic Sea
ini
*,* Institute of Oceanography and Fisheries Split, Laboratory of Plankton Ecology Dubrovnik, Kneza Damjana Jude 12, Hrv-20001, Dubrovnik, Croatia
* Corresponding Author: krsinic{at}labdu.izor.hr
A new species of Mesaiokeras is described from the hyperbenthos of Veliko Jezero, a marine lake on the island of Mljet, Croatia. This is the first species of this genus and family (Mesaiokeratidae) reported from the Adriatic and Mediterranean seas. It is characterized by small body length (an average 361 µm for females and 337 µm for males), the low number of free segments (21) and the armature of the antennules, very long spine (a2) of exopodite I of female right leg 4, the presence of long processes on the ventroposterior area of the female genital double-somite, the form and surface ornamentation of the genital area, the form and ornamentation of male and female leg 5, and the form and armature of caudal rami. This species was found in shallow water with very stable hydrographic conditions and at a population density from 1 to 26 ind. m-3.