Pulmonary injection preparations from the collection of Hans-Rainer Duncker: A‒D, Chauna torquata (Anseriformes, Anhimidae); A depicts the latex cast of the right lung (rotated by 180°), in C the corresponding part of the vertebral column (caudalmost thoracic vertebrae, right side) of the same specimen is shown; B and D are details of the framed areas in A and C. E‒G, Fulmarus glacialis (Procellariiformes, Procellariidae); E depicts the latex cast of the right lung (rotated by 180°), in G the corresponding part of the vertebral column (caudalmost thoracic vertebrae, right side) of the same specimen is shown; F is a detail of the framed area in E showing a “pulmonary protuberance” (encircled) sensu O’Connor (2006). The dotted circles in A and E denote the latex casts of the lateral openings and pleurocoels, respectively. Abbreviations: lop, lateral opening; mem, membrane covering lateral opening; plc, pleurocoel. The scale bars equal 10 mm.