Table 3 in Revision of the genus Cobbionema Filipjev, 1922 (Nematoda, Chromadorida, Selachinematidae)

Table 3. Comparison between all six known species of the genus Cobbionema Filipjev, 1922 based on original descriptions and studied slides.
CharactersC. trigamma Leduc, 2013C. capense Furstenberg & Heyns, 1987C. cylindrolaimoides Schuurmans Stekhoven, 1950C. acrocerca Filipjev, 1922C. brevispicula sp. nov.C. acuminata sp. nov.L male (µm)600–1305NA1360–1476592–6661083–11731094–1366L female (µm)5666881456–1755588–8601370NAAmphideal fovea in malesmultispiral; 4.25 turns, 0.3–0.5 cbdNAmultispiral; 3.5–4.25 turns, 0.4–0.5 cbdmultispiral; 4.25–5.25 turns, 0.5–0.6 cbdmultispiral; 3.5–3.75 turns, 0.4–0.5 cbdmultispiral; 3.75 turns, 0.6 cbdAmphideal fovea in femalesmultispiral; 4.25 turns, 0.3 cbd widemultispiral; 6.8 µm widemultispiral; 3.25–3.5, 0.2–0.3 cbdmultispiral; 3.25–3.75 turns, 0.3 cbdmultispiral; 3.5–3.75 turns, 0.3 cbdNASphincter muscle around stomanot described but visible in photographspresentpresentpresentpresentpresentBuccal armature24 pointed projectionstwo groups of teeth and four groups of denticlestwo rows of pointed projections; three regularly arranged tinestwo rows of pointed projections; three regularly arranged tinestwo rows of pointed projections; three regularly arranged tinestwo rows of pointed projections; three regularly arranged tinesRhabdions in posterior part of stomathree pairs fused posteriorlydescribed as rugaethree cuticularized Y–shaped mandiblesthree cuticularized Y–shaped mandiblesthree cuticularized Y–shaped mandiblesthree cuticularized Y–shaped mandiblesLateral alaeabsentnot describedpresentpresentabsentabsentLateral body porespresentnot describedpresentpresentpresentabsentSpicule length µm57–114NA89–9850–5829–3255–65 µmMid-ventral precloacol supplementone precloacal setaNAone precloacal papillaone precloacal papillathree or five precloacal papillaeone precloacal papillaAnus in femaledescribed as absent but present in drawingspresentabsentabsentabsentNASize variability within speciessignificantnot describednot significantnot significantnot significantnot significantTail shapeConoid proximal and digitate distal sectionsConoid proximal and subcylindrical distal sectionsConoid or dome–shaped proximal and digitate distal sectionsConoid proximal and digitate distal sectionsCurved ventral, conoid in shapeCurved ventral, conical