PLATE V. 



Centroscyllium nigrum Garm. Pafre 28. 



Fig. 1. Inside of .skull as .seen in a lougitudinal section. 



Fig. 2. Branchial cartilages, viewed from below, including the Meckelian, the shoulder 

 girdle, the pectoral fin, and the extrabrauchials of the right side. 



Fig. 3. Spiral intestine, intestinal CKCuin, kidneys, etc. 



Fig. 4. Shoulder girdle and cartilages of the pectoral fin. 



Fig. .5. Cartilages of the ventral fin and the pelvis. 



Fig. G. Heart, showing the valves in the bulbus. 



