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Figure 4. — Diagrams of the relative size and arrangement of the teeth in nine species of 

 eels: a, Enchelynassa canina (Quoy and Gaimard); b, Murenopkis pardalis (Schlegel); 

 c, Gymnothorax schismatorhynchus (Bleekcr); d, G. buroensis (Bleekcr'); e, G. monost-gma 

 (Rcs;an); f, G javanicus (Bleekcr), adult; g, G. pseudothyrsoideus (Bleekcr); h, G. leucostic- 

 tus Jenkins, young; t, G. thyrsoidea (Richardson). Upper half of each diagram repre- 

 sents the upper, jaw, and lower part the lower jaw. 



