original description
Adams, A. (1855). Description of two new genera and several new species of Mollusca, from the collection of Hugh Cuming, Esq. <em>Proceedings of the Zoological Society of London.</em> (1855) 23: 119-124., available online at http://biodiversitylibrary.org/page/30748012
page(s): 119-120 [details]
original description
(of Clea nigricans var. fasciata Bock, 1881) Bock, C. (1881). List of land and freshwater shells collected in Sumatra and Borneo, with descriptions of new species. <em>Proceedings of the Zoological Society of London.</em> (1881): 628-635, pl. 55., available online at https://biodiversitylibrary.org/page/30759831
page(s): 635; note: name attributed by Bock to H. Adams [details]
original description
(of Clea nigricans var. parva E. A. Smith, 1895) Smith, E. A. (1895). Observations on the genus <i>Clea</i>, with the description of a new species. <em>Proceedings of the Malacological Society of London.</em> 1: 251-253., available online at https://www.biodiversitylibrary.org/page/15167560
page(s): 252. [details]
original description
(of Clea nigricans var. granulata E. A. Smith, 1895) Smith, E. A. (1895). Observations on the genus <i>Clea</i>, with the description of a new species. <em>Proceedings of the Malacological Society of London.</em> 1: 251-253., available online at https://www.biodiversitylibrary.org/page/15167560
page(s): 252. [details]
original description
(of Clea nigricans var. natunensis E. A. Smith, 1895) Smith, E. A. (1895). Observations on the genus <i>Clea</i>, with the description of a new species. <em>Proceedings of the Malacological Society of London.</em> 1: 251-253., available online at https://www.biodiversitylibrary.org/page/15167560
page(s): 252. [details]
original description
(of Clea nigricans var. maxima Brot, 1881) Brot, A. (1881). Note sur quelques coquilles fluviatiles recoltées à Bornéo et à Sumatra par M. Carl Bock. <em>Journal de Conchyliologie.</em> 29: 154-160., available online at https://www.biodiversitylibrary.org/page/15856229#page/164/mode/1up
page(s): 159, pl. 6 fig. 4 [details]
basis of record
Strong, E. E.; Galindo, L. A.; Kantor, Yu. I. (2017). Quid est <i>Clea helena</i>? Evidence for a previously unrecognized radiation of assassin snails (Gastropoda: Buccinoidea: Nassariidae). <em>PeerJ.</em> 5: e3638., available online at https://doi.org/10.7717/peerj.3638 [details]
additional source
Aldrich, T. H. (1889). Notes upon a collection of shells from Borneo with descriptions of new species. <em>Journal of the Cincinnati Society of Natural History.</em> 12: 23-26, pl. 3., available online at https://www.biodiversitylibrary.org/page/42530736
page(s): 23 [details]
additional source
Smith, E. A. (1895). Observations on the genus <i>Clea</i>, with the description of a new species. <em>Proceedings of the Malacological Society of London.</em> 1: 251-253., available online at https://www.biodiversitylibrary.org/page/15167560 [details]
From editor or global species database