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A History of the County of Somerset
… fry of this species are found in the tributaries of the river in autumn. It is now well known that they spawn in the … county, for the river Avon would only affect the northern district. While considering the physical features of Somerset … in the Bristol Channel ( Zoologist, 1887, p. 433). The upper waters of the Bristol Channel were probably, owing to …
A History of the County of Somerset
… a Gloucestershire locality. The principal papers on the district are those by the Rev. Canon A. Merle Norman, D.C.L., … Shirehampton; The Pill, Clevedon stagnalis (Bast.). River mouths on the coast Bithynia tentaculata (Linn.) … Beauty,' has several times been noticed since 1844, when James Francis Stephens saw one in Goblin Coombe near Yatton, …
A History of the County of Somerset
… northern part of the county on the southern side of the river Avon, which here constitutes the boundary line between … from Lundy Island, and it is highly probable that the river crayfish, Potamobius pallipes (Lereboullet), abundant … 4 It may be further observed that in this genus the upper edge of the beak or rostrum is armed with teeth or …