Crossword-Solution: PLEURONECTIDAE
We have 1 clue for the answer “PLEURONECTIDAE”
| Clue | Answers |
|---|---|
| FISH (family) | 6 answers |
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Hint 1 meaning
The superficial contents of any figure; the surface included
within any given lines; superficial extent; as, the area of a square or
a triangle.
Hint 2 anagram
EAAR
Hint 3 another clue
CERTAIN BRAIN SIZE
14 +2
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Sentences with PLEURONECTIDAE (5)
Two months or more went to this task with no other help than an occasional looking over my grouping with the stereotyped remark: 'That is not right.' Finally, the task was done, and I was again set upon alcoholic specimens--this time a remarkable lot of specimens representing, perhaps, twenty species of the side -swimmers or Pleuronectidae.
Morgan, in a volume published some years ago, [Footnote: _Evolution and Adaptation_.] put forward the extraordinary view that the Pleuronectidae arose from symmetrical fishes by a mutation which was entirely gametogenetic and entirely independent of habits or external conditions, and then finding itself with two eyes on one side of its head, and no air-bladder, adopted the new mode of life, the new habit of lying on the ground on one side in order to make better use of its asymmetrically placed eyes.
The abnormalities in Pleuronectidae to which I have referred are of the kind usually regarded as due to arrested development.
Reversed specimens occasionally occur in many species of Pleuronectidae, and if the determinants for a reversed head and a normal body were united in one zygote, the curious abnormality observed might be the result.
The diagnostic characters, of some of the species of Pleuronectidae have been mentioned in an earlier part of this volume, in order to point out that they have no relation to differences of habit or external conditions.