HORN: SWIM-BLADDER STATE AND STRUCTURE 



Figure 4.— Gas gland cells and retial capillaries of the swimbladder oi Cubiceps gracilis. Arrow points to 

 retial capillary between gas gland cells. (From same specimen as Figures IE and 3.) 



Figure 5. — Gas gland of Peprilus triacanthus, 16.5 mm SL, showing arrangement of cells. (Transverse 



section.) 



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