Latin hordeaceus, of barley, from hordeum, barley; presumably indicating the shell is like a barley-grain [details]
The species was named for John Keast Lord (1818-1872), Naturalist to the British North American Boundary Commission [details]
Junior homonym of Physa acuta var. gibbosa Moquin-Tandon, 1843; no replacement name has been proposed [details]
junior homonym of Physa globosa Haldeman, 1842; no replacement name has been proposed [details]
Invalid: junior homonym of Physa mexicana var. minima Martens, 1865; no replacement name has been proposed. [details]
According to Taylor (2003), it is Aplexinae incertae cedis [details]
According to Taylor (2003: 209), Physa osculans Haldeman, 1841, is an unrecognizable species. However, Johnson et ... [details]
Listed as valid in Johnson et al. (2013); Taylor (2003) considered it as a probable synonym of Physella cubensis [details]
Johnson et al. (2013) accept Ph. cooperi as a valid species, while Taylor (2003) considered it a junior synonym of ... [details]
Taylor (2003) considers this species as 'incertae sedis' and places it tentatively into the genus Physa. [details]
Listed as valid in Johnson et al. (2013); Taylor (2003) considered it as a probable synonym of Physella gyrina. [details]
Possibly identical to Beringophysa jennessii [details]
While describing this taxon, Westerlund noted its resemblance to a sinistral Cochlicopa lubrica, but nevertheless ... [details]
Type locality: Swales and marshes at the village of Konstantinovka [48º35’N, 135º27’E], Khabarovsk region, ... [details]
Type locality “Mazatlán,” Sinaloa; but surely from some place far to the south. Of the known localities, the ... [details]
Type locality: Russia, near Falchudda Lake , Taimyr Peninsula, and Barnaul [details]
Type locality: tundra pond north of Lavrentija Zaliv [Lawrence Bay, 63º35’N, 171º00’W], and mouth of a small ... [details]
“Terrae-Novae insula” [Newfoundland, Canada] [details]
Type locality: Porto Novo [6º29’N, 2º37’E], Dahomey, West Africa [details]
“lac de Mexico,” i.e., the former lake in the Valley of Mexico [details]
“In Mexiko,” probably near the capital of Mexico [details]
Type locality: Lower Kane Cave, Big Horn County, Wyoming [details]
USA, “Rio Sacramento,” by error; actually from Mountain Lake [37º47’17”N, 122º28’12”W], San ... [details]
Locus typicus: USA, Illinois: shores of Mississippi River opposite St. Louis [38º38’N, 90º11’W], Missouri [details]