A reappraisal of Tylenchina (Nemata). 2. Classification of the suborder Tylenchina (Nemata : ,Diplogasteria

The phylum Nemata Cobb, 1919 is accepted as is the class Secernentea and subclass Diplogasteria. Within the subclass the two suborders Tylenchina and Aphelenchina are reunited in the order Tylenchida. The order is subdivided into four suborders: Tylenchina, Aphelenchina, Sphaerulariina and Hexatylina. This paper focuses on a revision of Tylenchina, here recognized as being composed of two superfamilies: Tylenchoidea and Criconematoidea. Seven families are recognizcd in Tylenchoidea: Tylenchidae, Anguinidae, Dolichodoridae, Bclonolaimidae, Pratylenchidae, Hoplolaimidae and Heteroderidae. Two families are recognized in Criconematoidea: Criconematidae and Tylenchulidae. Within these nine families, fifteen subfamilies are accepted in Tylenchoidea and four in Criconematoidea. A list of the families and their genera is included. RESUME Réévaluation des Tylenchina (Nevnatal. 2. Classification du sous-ordre des Tylenchina (Nemata: Diplogasteria) Le phylum Nemata Cobb, 1919 est accepté, de même que la classe des Secementea et la sous-classe des Diplogasteria. A l'intérieur de cette sous-classe, les deux sous-ordres des Tylenchina et des Aphelenchina sont r6unis dans l'ordre des Tylenchida qui comprend en outre les sous-ordres des Sphaerulariina et des Hexatylina. Cet article est centré sur une révision du sous-ordre des Tylenchina, considéré comme composé de deux super-familles: les Tylenchoidea et les Criconematoidea. Sept familles son