Dichelyne alatae is a species of nematode, described on the basis of the worms recovered from the intestine of the whiting, Sillaginopsis panijus from the estuary of the Hooghly River at Kalyani, West Bengal, India. Dichelyne alatae is unique in having a small body size, s posterior to the oesophagus, short and wide alae at the level of cloacal opening, unequal, spicules, a shield-shaped gubernaculum, a different number of caudal e and a conical tail with spines in its region.