Crossword-Solution: DIADEMATIDAE
We have 2 clues for the answer “DIADEMATIDAE”
| Clue | Answers |
|---|---|
| BLACK sea urchin (family) | 1 answer |
| black sea urchin | 1 answer |
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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
48 +1
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Sentences with DIADEMATIDAE (3)
These pouches are supposed to be respiratory, and are termed INTERNAL GILLS or STEWART'S ORGANS.[488] They co-exist with external gills in Echinothuriidae and in Diadematidae, though in the last family they are present only in a vestigial form, two being found in each radius.
TUBE-FEET.—The tube-feet belonging to the aboral surface are pointed and devoid of a sucker in Diadematidae, Echinothuriidae, Arbaciidae, and Cidaridae;[490] in the last-named family those belonging to the oral surface have suckers, in the centre of which a pointed (sensory) prominence is to be noted.
The Saleniidae, Echinothuriidae, and Diadematidae appear in the Jurassic, the Echinidae in the Cretaceous, and the Arbaciidae only in the Tertiary epoch.