Figure 5. – Latimeria chalumnae. Specimen CCC 24 in The lungs of extinct and extant coelacanths: a morphological and histological review

Figure 5. – Latimeria chalumnae. Specimen CCC 24 (MNHN- ZA-AC-2012-19). SEM images of the small mineralized plates of the lung. A: Smooth and slightly glossy surface of the plate (white asterisk) with the layers of collagen fibres (white arrows). B: Detail of the collagenous bundles in the successive conjunctive layers. C: An osteocyte (white arrowhead) with its cytoplasmic extensions (white arrows). D: Broken margin of a plate, with the artefactual lumen in the centre of the plate (white asterisk), several collagenous layers (white arrow-heads) and a bulk of mineralized spherules (white arrows). Inset: detail of the bulk of mineralized spherules. Scale bars: A, D = 100 μm; B = 20 μm; C, inset D = 25 μm.