title: New species of <i>Chaetonema</i> (Nematoda, Anoplostomatidae) and <i>Admirandus</i> (Nematoda, Oncholaimidae) from Patagonia, Río Negro and Santa Cruz, Argentina
abstract: Two new species are described from the Patagonia coast of Argentina, South Atlantic, and written keys to both genera are given. Chaetonema patagonica sp. nov. can most easily be differentiated from the other four species of the genus by the amphid shape and by the absence of a precloacal organ. Admirandus sanjuliensis sp. nov. is characterized by position of the Demanian pores, one preanal and two postanal, the configuration of pre- and postcloacal papillae and setae and by having the shortest s
journal: Journal of the Marine Biological Association of the United Kingdom