O-^ 228 CALIFORNIA ACADEMY OF SCIENCES 



EXPLANATION OF PLATE L 



PAGE 



Figs. I, \a. Mustehis lunulaius Jordan & Gilbert. Panama. 5 



Figs. 2, ia. Gaines dorsalis Gill. Panama. 7 



F'gs. 3, 2,a. Carcharias velox Gilbert. Type specimen; Panama. 9 



