Genus Prionodiaptomus Light, 1939

The recent discovery of Prionodiaptomus colombiensis (Thiébaud) is the only South American calanoid known from Mexico (Gutiérrez-Aguirre & Suárez-Morales 2000). Barcodes highlighted a possible cryptic species distributed more to the north than the first and subsequent records, in the Gulf coastal plateau.