Perforatella. The helicid snail newly recorded in Britain and other genera commonly confused with Trichia

Submitted by admin on Sun, 20/11/2011 18:55
FRED NAGGS
(1983)
Volume
31
Part
4
Page from
201

Several taxa may be confused with species of Trichia in Britain including the recently identified Perforatella rubiginosa. Features of the genital anatomy provide a more reliable means of discrimination at generic level than do shell characters.