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Chtenopteryx |
 | | At present species are separated by (1) the maximum number of sucker series on the arms and tentacular clubs, (2) the presence/absence of photophores, (3) the size of the visceral photophore and (4) the mantle width relative to the ML. |
| | This behavior is consistent with counterillumination (concealment via matching the downwelling light with bioluminescence) but the animal, in a horizontal attitude, did not conceal itself effectively as the head and posterior third of the body were relatively dark. |
| | Species of Chtenopteryx are found throughout the tropical and subtropical waters of the world's oceans (Nesis, 1982). |
| tolweb.org /Chtenopterygidae (898 words) |
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