MR. W. THOMPSON ON A NEW SUB-GENUS OF FISHES. 
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PLATE XXXVII. 
Fig. 1. Ecu1opoNn DruMMONDII. 
2. Anterior region of the he 
system, enlarged. 
3. Front view of the anterior termin 
ad seen laterally, the jaws extended to show the dental 
al teeth, enlarged. 
