Cephalaspis Lyellii, Agass. Length 63/4 inches. From a specimen in my collection found at Glammiss, in Forfarshire. See other figures, Agassiz, vol. ii. tab. 1. a. and 1. b.
- a. One of the peculiar scales with which the head is covered when perfect. These scales are generally removed, as in the specimen above figured.
- b, c. Scales from different parts of the body and tail.
Fig. 397.
Eggs of gasteropodous mollusk? Lower beds of Old Red, Ley's Mill, Forfarshire.
Fig. 398.
Fucoids and eggs of gasteropodous mollusk? Lower Old Red, Fife.