A treatise on zoology . ctenoid scale of Eiythrichthys nitidus, Ricli.(After Gunther.) PHOSPHORESCENT ORGANS 357 Deep-sea Teleostean fish are variously modified in adaptation totheir peculiar environment, and among the most characteristicstructures developed in them are the phosphorescent differ considerably in the various genera and in thedifferent parts of the same animal. The more elaborate phos-. bm I efi.

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Keywords: ., bookcentury1900, bookdecade1900, bookpublishe, booksubjectzoology