VERTEBRATES AND INSECT HAEMOGLOBINS: A NEW HAEMCOMPLEX††Abbreviations: Hb = haemoglobins; α-, β = chains of human Hb; M = sperm whale myoglobin; CTT = Chironomus thummi thummi; CTT-I = Ch. thummi thummi component I; Lp.fl. = Lamprey Hb; E, F; helical = region of M- and Hb-chains.