Euryhaliotrema dolichodrilus n. sp. and Euryhaliotrema mimulus n. sp. (Monogenoidea: Dactylogyridae) infecting the gill lamellae of porgies, Calamus spp. (Perciformes: Sparidae) from the Gulf of Mexico off Florida, U.S.A.

Two new species of Euryhaliotrema Kritsky & Boeger, 2002 (Monogenoidea: Dactylogyridae) were described from the gill lamellae of porgies, Calamus spp. (Perciformes, Sparidae), collected from the Gulf of Mexico off Florida: Euryhaliotrema dolichodrilus n. sp. from littlehead porgy Calamus proridens Jordan & Gilbert (type host), knobbed porgy Calamus nodosus Randall and Caldwell, grass porgy Calamus arctifrons Good & Bean, sheepshead porgy Calamus penna (Valenciennes), and jolthead porgy Calamus bajonado (Bloch & Schneider); and Euryhaliotrema mimulus n. sp. from jolthead porgy. The two new species along with Euryhaliotrema amydrum Kritsky & Bakenhaster, 2011, Euryhaliotrema carbuncularium Kritsky & Bakenhaster, 2011, Euryhaliotrema carbunculus (Hargis, 1955) Kritsky & Boeger, 2002, Euryhaliotrema luisae Cruces, Chero & Luque, 2018, Euryhaliotrema magnopharyngis Cruces, Chero & Luque, 2018, and Euryhaliotrema spirulum Kritsky & Bakenhaster, 2011 appeared to form a subgroup of species that developed secondarily within Euryhaliotrema.