Monhystera stagnalis Bastian 1865

• Main Author: P. A. A. LOOF
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 1971
• Subjects: Biodiversity; Taxonomy; Animalia; Nematoda; Chromadorea; Monhysterida; Monhysteridae; Monhystera; Monhystera stagnalis; Spitzbergen
• Online Access: https://doi.org/10.5281/zenodo.8152902; http://treatment.plazi.org/id/03C67B2BB42AFFD8FF3FFC43FED73CA3

Monhystera stagnalis Bastian, 1865. Two females. Dimensions: L = 1.14-1.24 mm; a = 28; b = 5.1- 5. 5; c = 5.3- 5.7; V = 32 - 3360-62. Body stout, tapering hardly anteriorly, the head end very broadly truncate. Cuticle smooth. Length of subcephalic setae 6- 7 \i or not quite one-third of corresponding body width. Body diameter at base of oesophagus 1.5 X width of lip region. Head end without distinct lips. Body with four rows of submedian setae measuring about one-sixth of body width. Diameter of amphids 6 \x; they are slightly wider than long and located 24 \L or 0.9 head width behind the anterior end. Oesophagus very thick, the posterior part slightly expanded, though not bulbiform; the posterior part filled with large branched glands. Width of amphids equal to one-quarter of corresponding body width. Distance from vulva to anus equal to 100 - 125 % of tail length. Tail 8 -9 anal body widths long, tapering in anterior half, cylindroid in posterior. Rectum measuring about 90 % of anal body width, Spinneret present. Vulva lips somewhat protruding; body contracted ventrally behind vulva. Oocytes arranged into multiple rows anteriorly. Sample 5. Published as part of P. A. A. LOOF, 1971, FREELIVING AND PLANT PARASITIC NEMATODES FROM SPITZBERGEN, COLLECTED BY MR. H. VAN ROSSEN, pp. 1-86 in Mededelingen Landbouwhogeschool Wageningen 71 on page 56, DOI: 10.5281/zenodo.8152982