Fig. 7 in Caenorhabditis monodelphis sp. n.: defining CrossMark the stem morphology and genomics of the genus Caenorhabditis

Fig. 7 Stemspecies pattern reconstruction. Legend for the cladogram: Black squares indicate the following apomorphies: 1) Glottoid apparatus transformed, sectors of metastegostom not spherically protruding; - median bulb prominent oval; - GP3 shifted posterior of cloaca level (only two precloacal papillae present); - GP7-9 clustered; - spiculum blade dorsally velum-like. 2) GPs 3-6 clustered, but with small gaps in betw een; - GP6 thickened, its tip em bedded w ithin the bursa velum; - posterior part o f bursa velum w ith "wash-board pattern" (transverse striae); - spiculum shaft with transverse seam; - dauerlarvae unsheathed. 3) Stoma triangular in cross section; - spiculum terminally notched or dentated and w ith an oval "w indow " in the blade; - postcloacal sensilla filiform; - shortening o f the fem ale tail. 4) Adult cuticle lateral with 3 longitudinal ridges; - sexual dimorphism in cephalic sensilla: they are lost in the female (not projecting to the exterior); - each sector of metastegostom with a triangular flap projecting into the buccal cavity; - precloacal lip anteriorly framed. 5) Gymnostom extended and stegostom shortened, so that only a remnant of the pharyngeal sleeve is present; - gubernaculum distally forked (only presumed for P. friste)