Turbellarians name details
Polycladus elongatus (Darwin, 1844) Stimpson, 1857
482968 (urn:lsid:marinespecies.org:taxname:482968)
unaccepted
Species
recent only
(of Planaria elongata Darwin, 1844) Darwin, C. (1844). Brief descriptions of several terrestrial planariae and of some remarkable marine species, with an account of their habits. Ann. and Mag. of Nat hist., 14: 241-251, pl. 5, figs. 1-4 [details] 
Tyler, S., Artois, T.; Schilling, S.; Hooge, M.; Bush, L.F. (eds) (2006-2025). World List of turbellarian worms: Acoelomorpha, Catenulida, Rhabditophora. Polycladus elongatus (Darwin, 1844) Stimpson, 1857. Accessed at: https://www.marinespecies.org/turbellarians/aphia.php?p=taxdetails&id=482968 on 2025-07-10
Date
action
by
original description
(of Planaria elongata Darwin, 1844) Darwin, C. (1844). Brief descriptions of several terrestrial planariae and of some remarkable marine species, with an account of their habits. Ann. and Mag. of Nat hist., 14: 241-251, pl. 5, figs. 1-4 [details]
new combination reference Stimpson, W. (1857). Prodromus descriptionis animalium evertebratorum, quae in Expeditione ad Oceanum Pacificum Septentrionalem a Republica Federata missa, Johanne Rodgers Duce, observavit et descripsit. Pars I, Turbellaria Dendrocoela. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 9: 19-31 [1-13 in separate]., available online at https://archive.org/details/prodromusdescrip00stim [details]
new combination reference Stimpson, W. (1857). Prodromus descriptionis animalium evertebratorum, quae in Expeditione ad Oceanum Pacificum Septentrionalem a Republica Federata missa, Johanne Rodgers Duce, observavit et descripsit. Pars I, Turbellaria Dendrocoela. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 9: 19-31 [1-13 in separate]., available online at https://archive.org/details/prodromusdescrip00stim [details]