A shot in the dark: Comparative morphology of the bioluminescent tube organs in tubeshoulders (Platytroctidae)
Fig 3
Longitudinal sections through the postcleithral tube organ.
(A) Mirorictus taningi (SIO 14-136) and (B) Searsia koefoedi (MCZ 168583). Potential developing luminescent-fluid cells (*) in (C) Mirorictus taningi (SIO 14-136) and (D) Platytroctes apus (SIO 77-54). Anterior is to the left in all figure panels, such that the posteriorly-directed terminal opening of the tube organ is to the right. Abbreviations: scale (s), dermis (d), tube organ (t), pigment layer (pl), modified scale (ms), luminescent fluid (lf), muscle (m), nucleus (n), blue cells (bc), red blood cells (rb), blood vessel (v), epithelium (ep).