Figure 6

Structure of pulmonary capillary in B. gargarizans and P. nigromaculatus by LM. LM observation of the pulmonary capillaries in B. gargarizans and P. nigromaculatus. The pulmonary wall contains one layer of capillaries in B. gargarizans (A,B) and P. nigromaculatus (E) and is thicker in B. gargarizans (A) than in P. nigromaculatus (E). The septa contain two layers of capillaries in B. gargarizans (C,D) and P. nigromaculatus (F,G) and is thicker in B. gargarizans than in P. nigromaculatus. Lung/body weight percentage and heart/body weight percentages in B. gargarizans and P. nigromaculatus (H). The white arrow shows the capillary or thick fold of the lattice, and the black arrow shows the capillary or sheet of the lattice. B, D, and G show enlarged images of the boxes in A, C, and F, respectively. Scale bar: 30 μm.