Scheldt species source details
Clench, W. J. (1926). Three new species of Physa. Occasional Papers of the Museum of Zoology, University of Michigan. 168: 1-8, pl. 1.
350126
Clench, W. J.
1926
Three new species of <i>Physa</i>.
Occasional Papers of the Museum of Zoology, University of Michigan
168: 1-8, pl. 1
Publication