Adoncholaimus minor sp. n. and Belbolla vi sp. n. (Nematoda, Enoplida) from mangrove the Yen River Estuary in Vietnam

摘要

Two new nematode species, Adoncholaimus minor sp. n. and Belbolla vietnamica sp. n. found in the mangrove forest of Yen River Estuary (Vietnam) are described and illustrated. A. minor sp. n. is close to A. lepidus (de Man, 1898), but differs from it by the shorter and thicker body, longer and slender tail and shorter spicules. B. vietnamica sp. n. differs from all valid species of the genus Belbolla (Cobb, 1820) by the presence of ocelli and only four pharynx bulbs.