“Genus Eusamytha, new genus
Type Eusamytha sexdentata, new species
Paleae are present. The body consists of 15 thoracic and about 15 abdominal setigerous segments, and uncini are first present on the fourth setigerous segment. Branchiae number three pairs; they are inserted on a raised membrane. The prostomium is trilobed and not glandular. A large folded membrane fills the oral cavity. Thoracic uncini have six teeth in a single row.
Eusamytha approaches A mythas Benham in having paleae, an oral membrane and three pairs of branchiae; it differs in having 15 thoracic setigerous segments, and thoracic uncini with teeth in one row.”
(Hartman, 1967)