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'• Fig. 240. Mollienisia species (Life size) These fishes well illustrate the pronounced color differences shown between the sexes of some species. To the uninitiated the difference is sometimes so great that a pair would not be recognized as belonging to the same family. See page 242 (No. 18). Text Appearing After Image: Fig. 241. Belonesox belizanus or Viviparous Killifish (Slightly reduced) These little fishes are quite as bloodthirsty as their expression would appear to indi- cate. After they attain adult size they prefer being fed on small living fish, although worms are taken under protest. See page 242 (No. 18). 258
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== {{int:filedesc}} == {{subst:chc}} {{information |description={{en|1=<br> '''Title''': The complete aquarium book; the care and breeding of goldfish and tropical fishes<br> '''Identifier''': completeaquarium00inne ([https://commons.wikimedia.org/w/in...