Key to the species of the genus Megalanceoloides Zeidler, 2009

1. Mandibular palp with relatively slender articles; the third 1.4–1.5 x as long as first two combined; first two articles with few, short setae. P6 and P7 with distal margin of propodus densely hirsute on either side of insertion of dactylus........................................................................................ M. remipes (K.H. Barnard, 1932)

- Mandibular palp with robust articles; the third only slightly longer than the first two combined; the second relatively hirsute with several long setae terminally. P6 and P7 with few setae on postero-distal corner of propodus...................... 2

2. Found in central region of Pacific Ocean............................................... M. aquanime Gasca, 2017

- Found in central region of Indian Ocean.............................. M. gascae Williams & Bunkley-Williams, 2019