FREELIVING AND PLANT PARASITIC NEMATODES FROM SPITZBERGEN, COLLECTED BY MR. H. VAN ROSSEN Author P. A. A. LOOF Department of Hematology, Agricultural University, Wageningen, The Netherlands text Mededelingen Landbouwhogeschool Wageningen 1971 1971-12-31 71 1 86 journal article 10.5281/zenodo.8152982 dc936e39-ea56-4501-b5ba-a24d055276c8 8152982 85C9CB49-EEA1-467B-ACC7-7C11B9EDEEAD Plectus geophilus de Man, 1880 ( Fig. 15 ,C- D). Two females. Dimensions: L = 0.37-0.42mm ; a = 2 9-31; b = 3.6;c = 10.2-11. 1; V = 1 0- 1 353-5410- 1 2. This species generally resembles P.parvus , withwhichit sharesthepostequatorial vulva position. It is, however, easilydistinguishedbythemuch slenderer body and the curved posturein death.Lipsround,appearingslightly inflated. Amphids measuring 1.5 \ x or 17%ofcorrespondingbodydiameter, located 10 \J. behind head end. Cephalic setae 2 \x. long, directed laterad. Tail length 4.8 -5.0 anal body widths. Samples 19 and 62.