Fig. 6
From: Buoyancy and hydrostatic balance in a West Indian Ocean coelacanth Latimeria chalumnae
Prey items in gastrointestinal tract and prey with a swim bladder. a–d Mineralized remains of prey items in the distal portion of the digestive tract of the coelacanth imaged by X-ray computed tomography (CT) and magnetic resonance imaging (MRI). Dashed gray square in a is magnified in b and shown in a similar view plane using T2-weighted MRI (c). A three-dimensional surface rendering of the fecal matter is shown in d. e,f Sagittal T2-weighted MRI slice (e) and three component (skin, bones, swim bladder) model (f) made from CT and MRI of Beryx decadactylus, a known prey item of the coelacanth. This species contains an air-filled swim bladder (light blue segment in f) that under the assumption of neutral buoyancy displaces a volume of seawater with the same mass as the net weight of the fish (excluding the swim bladder) in seawater