The Cambridge natural history, Vol. 04 (of 10)Note 228 — Chapter XI · ARACHNIDA (CONTINUED)—DELOBRANCHIATA = MEROSTOMATA (CONTINUED)—EURYPTERIDAReading editionWalcott, Amer. Jour. Sci. (3), xxiii., 1882, p. 213.◇Copy noteReturn to CHAPTER XI ARACHNIDA (CONTINUED)—DELOBRANCHIATA = MEROSTOMATA (CONTINUED)—EURYPTERIDA