Note 369 — Chapter XI
Reading edition
In the British Museum there is a mass of silicified wood from the Upper Greensand of Blackdown, perforated by a Teredo, whose valves remain in the burrows.
[370] Other genera of boring shells also occur fossil, as Fistulana, Gastrochæna (Min. Conch. tab. 526), Saxicava (Min. Conch. tab. 466).