Answers are grounded in this paper and cite their sources.
Cercaria pseudocellata Szidat and Wigand, 1934; C. bilharziellae polonicae Szidat, 1929; C. kenilworthensis n.sp. and C. edgwarensis n.sp. are recorded from London. Descriptions of the two new species and a comparison with related forms is given.
No takes yet. Share an insight, caveat, or question.
D. Khan (1961) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: