Odontodiaptomus thomseni male, SEM photographs. A Dorsal view of segments 11–16 of A1R (500 µm) B Detail of small chitinous knob on internal margin of left CR (20 µm) C P3, P4 and right P5 (caudal view), showing detail of EnpP5, lateral spine of P5 (200 µm) and were the semi-circular knob in inserted in Exp2P5 in frontal view D Right EnpP5 (2 µm) E Detail of chitinous knob on internal margin of CR (2 µm) F Detail of terminal claw (20 µm).

  
 
  Part of: Perbiche-Neves G, Boxshall GA, Previattelli D, Nogueira MG, da Rocha CEF (2015) Identification guide to some Diaptomid species (Crustacea, Copepoda, Calanoida, Diaptomidae) of “de la Plata” River Basin (South America). ZooKeys 497: 1-111. https://doi.org/10.3897/zookeys.497.8091