original description
(of Caecum (Anellum) elongatum var. semilaeve P. P. Carpenter, 1857) Carpenter, P. P. (1857). <i>Catalogue of the collection of Mazatlan Mollusca in the British Museum collected by Frederick Reigen</i>. London: British Museum. xvi + 552 pp. , available online at http://www.biodiversitylibrary.org/item/61252
page(s): 319 [details]
basis of record
Raines B.K. (2020). A Rosetta Stone for eastern Pacific Caecidae (Gastropoda: Caenogastropoda). <em>Zootaxa.</em> 4827(1): 1-146., available online at https://doi.org/10.11646/zootaxa.4827.1.1
page(s): 64, figs 45A–H, 46A–K, 47A–B, 126M [details]
subsequent type designation
Raines B.K. (2020). A Rosetta Stone for eastern Pacific Caecidae (Gastropoda: Caenogastropoda). <em>Zootaxa.</em> 4827(1): 1-146., available online at https://doi.org/10.11646/zootaxa.4827.1.1
page(s): 67, fig. 45E; note: neotype designation [details]
From editor or global species database
Distribution From Magdalena Bay, Baja California, Mexico to Tumbes, Peru, including the Gulf of California and the Galapagos Islands. Intertidal to 100 m. [details]