1852 3 125 Other portions of the organism (excepting along the supraseptal spaces) are densely crowded with them.
1928 (Royal Soc.) B. 216 224 (caption) Dorsal or supra-septal compartment of the mantle cavity.
2000 W. Maier in P. F. Whitehead & C. J. Jolly (2006) v. 123 Sometimes, isolated supraseptal cartilages become integrated into this planum.