Aporcelaimellus

The dorylaimid genus Aporcelaimellus Heyns, 1965 belongs to the family Aporcelaimidae (Heyns, 1965), it’s members are mostly predaceous on Oligochaeta worms and nematodes. They have a robust medium sized body with an offset labial region, a short odontostyle with large aperature, a short rounded tail and two distinct culticle layers of different refraction. Males are rare. Aporcelaimellus belongs to one of the most common soil nematodes. Particularly the species A. obtusicaudatus (Bastian, 1865) Altherr, 1968 is considered as the most common terrestrial nematode with a world-wide distribution (Andrássy, 2009).    

More pictures of Aporcelaimellus:

A. obtusicaudatus: anterior body
A. obtusicaudatus: anterior body

A. obtusicaudatus: posterior body
A. obtusicaudatus: posterior body

 A. obtusicaudatus: anterior body (pharynx visible)
A. obtusicaudatus: anterior body (pharynx visible)

A. obtusicaudatus: posterior body (vulva visible)
A. obtusicaudatus: posterior body (vulva visible)

A. obtusicaudatus: head region with set off lip region. Odontostyle and guiding sheat visible
A. obtusicaudatus: head region with set off lip region. Odontostyle and guiding sheat visible
A. obtusicaudatus: idem. Odontostyle aperature and odontophore visible.
A. obtusicaudatus: idem. Odontostyle aperature and odontophore visible.
A. obtusicaudatus: idem
A. obtusicaudatus: idem
A. obtusicaudatus: idem
A. obtusicaudatus: idem
A. obtusicaudatus: pharynx intestine region
A. obtusicaudatus: pharynx intestine region
A. obtusicaudatus: idem
A. obtusicaudatus: idem

A. obtusicaudatus: cuticle detail
A. obtusicaudatus: cuticle detail

A. obtusicaudatus: vulva with strong sclerotized inner lips
A. obtusicaudatus: vulva with strong sclerotized inner lips

A. obtusicaudatus: short female tail
A. obtusicaudatus: short female tail

Aporcelaimellus simplex:

overzicht slokdarm
overzicht slokdarm

overzicht slokdarm
overzicht slokdarm

overzicht staart
overzicht staart

overzicht staart juv
overzicht staart juv

lipstreek, papillen, 2e speer met opening 75%
lipstreek, papillen, 2e speer met opening 75%

lipstreek, speeropening
lipstreek, speeropening

speer, ged. slokdarm
speer, ged. slokdarm

speeropening, voortzetting
speeropening, voortzetting

speeropening 75%
speeropening 75%

slokdarmbasis
slokdarmbasis

vulva, vagina, ged. ei
vulva, vagina, ged. ei
anale opening, staartpunt
anale opening, staartpunt
anale opening, staartpunt
anale opening, staartpunt

(Click on the pictures for an enlargement, ©Wageningen University & Research, Laboratory of Nematology/Pictures: Hanny van Megen)