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].
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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