Terrestrial nematodes from Jan Mayen Author Allgén, C. A. text Annals and Magazine of Natural History 1953 12 6 665 688 journal article 10.1080/00222935308654469 10811051 Cephalobus (Eucephalobus) oxyuroides (de Man). de Man, 1876 , p. 63, pl. vii, fig. 26 a-b. de Man, 1884 , pp. 94-95, pl. xiv, fig. 55. Dimensions.= ♂ . Body -length=0.7 8 7 mm ., max. width= 0.022 mm ., o e s o p h a g u s=0.2 1 3 mm., tail=0.050 mm., α = 3 5. 7 7, β =4. 1 5, γ= 15.74. ♀ . Body-length=0. 800 mm ., max. width= 0.021 mm ., oesophagus =0.2 1 3 mm ., tail =0. 0 6 5 mm ., α =38.095, β =3.76, y=1 2.3 1.