Two new nematode species orthe genus Chromadorita found in sediment of littoral zone of South China Sea at the coast of Vietnam are described and illustrated. Chromadorita longispiculata sp. n. is close to C. minima (Kreis, 1929) and C. nana Lorenzen, 1973. From the former it differs in the comparatively shorter and less slender tail and longer cephalic setae. from C. nana it differs in the thicker body and longer spicules and gubernaculum. Chromadorita pygmaea sp. n. is close to C. longispiculata sp. n., but it can be separated from this species by the shorter body, longer and more
slender tail in females and shorter spicules and gubernaculum. A pictorial key for identification of 14 valid species from species group "abnormis" of the genus Chromadorila is given.