Tropodiaptomus longiprocessussp. nov; male. A. P5, dorsal view; B, C. Hyaline lamella on exp-2 of right P5, dorsal surface; D. Hyaline lamella on exp-2 of right P5, lateral surface; E, F. Exopodal segment of the male left antennule,dorsal surface; G. Exopodal segment of the male left antennule,ventral surface; H. Antepenultimate segment of right antennule; I. Lateral part of P1 basis; female: J. Pediger 5 and urosome, lateral view; K. Pediger 5 and urosome, dorsal view; L. P5. Arrowheads show the characters discussed in the description.

 
 
  Part of: Saetang T, Maiphae S (2023) Diversity of the genus Tropodiaptomus Kiefer, 1932 (Crustacea, Copepoda, Calanoida, Diaptomidae) in Thailand, with the description of two new species. Zoosystematics and Evolution 99(2): 399-422. https://doi.org/10.3897/zse.99.105511