basis of record
Pease, W. H. (1869). Description of new species of marine Gasteropodæ inhabiting Polynesia. <em>American Journal of Conchology.</em> 5: 64-79., available online at https://www.biodiversitylibrary.org/page/15978904
page(s): 70 [details]
additional source
Huang, S.-I [Shih-I]; Fu, I-F. [I-Feng]; Poppe, G. T. (2016). Taiwanese and Philippine Colloniidae. Nomenclatural remarks and the description of 17 new species (Gastropoda: Colloniidae). <em>Visaya.</em> 4 (5): 4-42. [details] Available for editors 
From editor or global species database
Nomenclature The name Leptothyra is generally attributed to Pease (1869), and the name "Leptothyra Pease, 1869" is usually treated as a valid name for small colloniines. Although Leptothyra J. G. Cooper, 1867 is a junior objective synonym of Homalopoma, the species usually treated as valid in that genus are provisionally listed in WoRMS under "Leptothyra sensu Pease, 1869", pending a taxonomic/nomenclatural reappraisal. Poppe et al. (2023: 166) regard it as Homalopoma, but in fact the Pease species costata belongs to Collonista. [details]