Definition: Rhabditinae. Six closed lips, each with a single
bristle-like papilla. Meterhabdions each with a single tooth; anisoglottid
and anisomorphic, dorsal metarhabdion largest. Oesophageal collar
surrounds about 1/2 stoma. Oesophagus with median bulb. Vulva
median; gonads paired, opposed, reflexed. Female tail of medium length,
conical, pointed. Male tail just leptoderan with a short spine.
9 pairs of caudal papillae. Spicules separate; gubernaculum present.
2 pre-anal and 2 post-anal small tubercules present.
Type species: Poikilolaimus micoletzkyi Fuchs, 1930