Type of oesophagus, where oesophagus is ventrally lobed is
A. Aphelenchoid type
B. Helicotylenchus type
C. Neotylenchoid type
D. Rhabditoid type
Answer: Option B
Solution(By Examveda Team)
The type of oesophagus, where oesophagus is ventrally lobed is Helicotylenchus type.Lip region with small abial disc, with 4 - 5 annuIi, 6 fLm % 0.5 wide and 3 - 4 fLm high with the well-developed labial framework.
Oesophagus is long with large rounded median bulb, long isthmus and oesophageal glands overlapping intestine ventrally and dorsally.
Phasmids pore-like situated at anus level, tram 2 annuIi posterior to 6 anterior to it and in the middle of the inner two incisures or closer to the ventral one.
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