NEW FINDINGS OF HAMMERHEAD PLANARIANS (PLATYHELMINTHES: TRICLADIDA: CONTINENTICOLA: BIPALIINAE) ON THE RUSSIAN FAR EAST

Prozorova L.A.

Biota and environment of natural areas 2021; (1): 55-64

Land planarians Bipaliinae are first discovered in oak and mixed coniferous-broadleaved forests of the the Lazovsky Nature Reserve and Livadiysky Ridge. Сordon America of the Reserve at the latitude N 43° 15’ is the northern extreme record of both Asian land planarians and Bipaliinae. The planarians found are regarded to the genus Diversibipalium , uniting Bipaliinae of unknown status. Body length of live worms 14-30 mm, head lunate with moderate non-recurved auricles, body dark brown or lighter gray-brown, devoid of stripes on ventral surface. A distribution map for the Russian Far East land planarians is provided.

DOI 10.37102/2782-1978_2021_1_4