An annotated checklist and keys to the species of Copepoda Harpacticoida (Crustacea) Author Wells, J. B. J. text Zootaxa 2007 2007-08-31 1568 1 1 872 https://biotaxa.org/Zootaxa/article/view/zootaxa.1568.1.1 journal article 10.11646/zootaxa.1568.1.1 1175­5334 5096323 7F32B238-224A-4079-B0E0-D5003C7F185A Family Idyanthidae KG 0 – characters 1. Antenna exopod n ­ number of segments 2. P3–P4 endopod n:n ­ number of segments in P3 and P4 3. P2–P4 exopod, distal segment n:n:n ­ number of setae and spines on P2, P3 and P4 4. P3–P4 endopod, distal segment n:n: ­ number of setae and spines on P3 and P4 5. P3–P4 Enp­2, inner edge n:n ­ number of setae on P3 and P4 na ­ not applicable (endopod less than 3­segments)