SEM observations and developmental biology of tobrilus paludicola micoletzky, 1925 (Nematoda: Enoplida)

Abstract

Detailed SEM observations were made on Tobrilus paludicola Micoletzky, 1925 and on its developmental biology. The cuticle is marked with fine transverse striations. The lip region is continuous and lips are broadly triangular in shape. The labial papillae are in a 6+6+4 arrangement. Amphids are small, ovoid, post-labial apertures. Embryonic development is completed 18-26 h after egg laying. The gonad in males and females develops from a single primordium. The supplement formation in third stage male juveniles is marked by the formation of numerous ventral chord supplement nuclei and finally their aggregation in groups at definite distances at a later stage.