PLATE IV. 



Centeoscyllium nigrum Garm. Page 28. 



Fig. 1. Skull as seen from the left side. 



Fig. 2. Skull as it apiiuavs when viewed from above. 



Fig. 3. Outlines of the head from the upper side. 



Fig. 4. Outlines of the head fruni beneath. 



Fig. 5. A tooth from the forward portion of the upper jaw. 



Fig. G. One of the teeth from the lower jaw. 



Fig. 7. Scales from the upper portion of the mid flank. 



