*2: Exposed mud at
margin of pool near Tamar Lake reservoir, E. of Kilkhampton,
1968, JAP (BBSUK) (Paton 1969a: 692, 1969b:
The only Cornish records were from a pool (SS2910)
near Lower Tamar Lake in 1968 and Oct. 1972
(JAP pers. comm.). The management of the pool for the past
decade or more has ensured that low water levels exposing mud
can no longer occur there.