Planche 1 issued from : G.A. Boxshall in Bull. Br. Mus. nat. Hist. (Zool.), 1977, 31 (3). [p.152, Fig.25, e-k]. Male (from 18°N, 25°W): e, habitus (dorsal); f, urosome (ventral); g, A2 (anterior); h, Mxp (anterior); i, Md (anterior); j, Mx1 (posterior); k, Mx2 (ventral).
Planche 2 issued from : T. Mori in The pelagic Copepoda from the neighbouring waters of Japan, 1937 (1964). [Pl.80, Figs.6-8, 12-13]. As Pachysoma dentatum. Male (23°8'42''N, 123°51'52''E): 6, Mxp; 7, A1; 8, A2; 12, P4; 13, habitus (dorsal).
Nota: - Terminal segment of A2 with 1 stout and 4 slender setae (instead of 5 slender setae of P. punctatum). - Proximal portion of the inner margin of the 2nd segment of basipodite of Mxp denticulate and with 1 spine; the 2nd segment of endopodite terminates into the simple claw. The hook-like spine on the proximal portion of this segment is about 5/12 times as long as the segment itself.
Planche 3 Issued from : W. Giesbrecht in Systematik und Faunistik der Pelagischen Copepoden des Golfes von Neapel und der angrenzenden Meeres-Abschnitte. – Fauna Flora Golf. Neapel, 1892. Atlas von 54 Tafeln. [Taf.48, Fig.37]. As Pachysoma tuberosum. Female: 37, habitus (dorsal).
South Africa (E), off Cape Verde Is., off SE Sri Lanka, Indian, Nicobar Is. (Nankauri Harbour), Taiwan, off S Japan, Australia (Great Barrier), G. of Panama, N Brazil.