(= Orthoconchoecia haddoni - see explanation in diagnosis of genus Conchoecia).
Conchoecia haddoni Müller, 1906a; p. 89, Pl. 18 Figs.1-10.
Conchoecia haddoni Skogsberg, 1920; pp. 668-672 Fig CXXVII
Conchoecia haddoni Angel, 1970b; pp. 153-158, Figs. 4-6.
Orthoconchoecia haddoni Poulsen, 1973; pp. 90-94, Figs. 45a-g.