Stimpson, W. (1857). Prodromus descriptionis animalium evertebratorum, quae in Expeditione ad Oceanum Pacificum Septentrionalem, a Republica Federata missa, Cadwaladaro Ringgold et Johanne Rodgers Ducibus, observavit et descrips, Pars II, Turbellarieorum Nemertineorum.
Proceedings of the Academy of Natural Sciences of Philadelphia. 9: 159-165 [15-22 in separate].