translate English to French: Paramononchus arcticus n.gen., n.sp., Coomansus fletcherensis n.sp., and Mononchus superbus n.sp. from the Mackenzie and Porcupine river systems and Somerset Island are described and illustrated.
On trouvera ici la description illustrée de Paramononchus arcticus n.gen., n.sp., de Coomansus fletcherensis n.sp. et de Mononchus superbus n.sp. provenant des bassins des rivières Mackenzie et Porcupine et de l'île de Somerset.