1. Nematology 100
Lecture 2 Slides

10. Labial Configurations - Criconematidae
after Bert, 2012

11. Anterior Region - Tylenchoidea
cephalic framework
cone
shaft
knobs
procorpus
metacorpus
valve
nerve ring
lateral field
esophago-intestinal junction
intestine
esophageal glands
dorsal esophageal gland orifice
esophageal lumen
isthmus
hemizonid
excretory pore
excretory canal
head
After Brzeski, 1998
Bert, 2012

13. Anterior Region - Tylenchoidea
amphidial canal
nerve
processes
esophageal gland opening
esophageal lumen
stylet protractor
muscle
stylet
somatic muscles
cephalic framework
stoma
amphid aperture
after Endo, 1980
Anterior Region - Tylenchoidea

16. Anterior Region – Tylenchoidea
Tylenchidae

18. Esophageal Configuration
Enoplea
Chromadorea
cardia
median
bulb
isthmus
intestine
odontostyle
stoma
setae
teeth
stylet
procorpus
postcorpus

19. Teeth – immovable and moveable
cone
shaft
knobs
stylet
Chromadorea
Enoplea

20. Enoplea Enoplia Dorylaimia Mermithida Trichinellida Enoplida
Mermis sp.
Trichuris sp.
Belbolla sp.
Enoplida
Triplonchida
Dorylaimida
Mononchida

21. Chromadorea
Chromadoria
Chromadorida
Desmodorida
Monhysterida
Rhabditida

22. Tail Shapes attenuated with spinneret conoid digitate filiform
Con spinneret
attenuated
with spinneret
conoid
digitate
filiform
conoid attenuated
conoid curved
cylindroid
rounded
mucronate
multidigitate
ventrally curved
subdigitate

23. Female Reproductive System -monovarial, prodelphic example
spermatheca
uterus
oocytes
postvulval uterine sac
germinal zone
columella
ovary
oviduct
after Bert, 2012

24. Male Reproductive System -monorchic example
spicule
gubernaculum
cloaca
hypotygma
bursa
phasmid
vas deferens
testis
ejaculatory duct
seminal vesicle

25. From Holovachov and Boström, 2010

29. Nematode Sensilla – basic structures
after Bert, 2012

30. Amphids – anterior chemosensory sensillae
a.d. = amphidial duct
cu. = cuticle
ep. = epidermis
fov. = fovea
g.c. = gland cell
m.d. = multivillous dendrite
s.c. = socket cell
s.r. = sheath receptor
after Bert, 2012; Coomans, 1979

32. Phasmids – posterior chemosensory sensillae
scutellum
lateral field (4 incisures)
anus
rectum
intestine
phasmid
after Bert, 2012

33. Male tail region Female tail region spicule gubernaculum cloaca
hypotygma
bursa
phasmid
lateral field (4 incisures)
anus
rectum
intestine
phasmid
Female tail region

34. Deirids – minute lateral sensillae
after Bert, 2012