(citation)- p 11, "Kenk (1972) records P. velata as occuring in springs, streams, and spring-fed ponds, apparently all across the continent, but the study of sexual material has occurred only in eastern North America. The recognition that P. vernalis is not a valid species means that Kenk's (1972) distributional data referring to temporary ponds can also be applied to P. velata. The exact range of P. velata is not known, and in western North America there are superficially very similar species, which show fragmentation, and which nevertheless are morphologically and karyologically distinct (Ball and Gourbault, 1975)."
Notes from synonyms
Notes for Fonticola velata
Castle WA, Hyman LH 1934 (citation)- p 156-157, 'From all these records it appears that F. velata has a wide range, centering in the middle west throughout the upper basin of the Mississippi River and its tributaries and extending southeastward into Carolina, southward into Missouri, and westward through Nebraska and Colorado. The species has never been taken to our knowledge in New England or the Gulf of Mexico states or west of the Rocky Mountains.'