Note 410 — Chapter XII
Reading edition
Three other well-marked species are figured and described by Mr. Edwards (Monog. Pal. Soc.) from the English eocene strata: viz. N. Sowerbyi, N. urbanus, and N. regalis.
Reading edition
Three other well-marked species are figured and described by Mr. Edwards (Monog. Pal. Soc.) from the English eocene strata: viz. N. Sowerbyi, N. urbanus, and N. regalis.