Description

Description Cuticle annulated in the anterior region (annuli 0.6 – 0.8 μm width) becoming finely striated at midbody (0.2 – 0.3 µm). Head capsule well developed, surface appearing with a fingerprint pattern by LM, SEM microphotographs suggest some depressions in the surface. Six inner and six outer labial sensilla papilliform. Four cephalic sensilla (10 – 13 μm long) at the base of the head capsule, four subcephalic setae (6 – 8 µm long) next to the cephalic ones. Amphidial fovea cryptospiral, relatively large, posterior border is in contact with cuticle striations. Eight longitudinal rows of somatic setae running from cervical region to level of anus; long setae (18 – 22 μm long) alternate with two shorter setae (~ 4 μm long). Buccal cavity small, with one small dorsal tooth and two ventrosublateral denticles, not always visible. Pharynx muscular with well-developed posterior bulb and plasmatic interruptions. Cardia and excretory-secretory system not observable. Tail region with only four longitudinal rows of setae. Male monorchic; anterior testis to the right of the intestine. Spicule capitulum with a characteristic ventral process. No precloacal supplements. Female didelphic, ovaries antidromously reflexed and both genital branches to the right of the intestine. Vulva a simple transversal slit-like aperture. Juveniles are similar to adults except for the development of the reproductive system.

Common Names

Taxonomic Hierarchy

Kingdom: Animalia

Phylum: Nematoda

Class: Chromadorea

Order: Desmodorida

Family: Desmodoridae

Genus: Bolbonema

Species: Bolbonema brevicolle Cobb, 1920