Crossword-Solution: PLANORBIS
Dictionary
| Word | Word Type | Definition |
|---|---|---|
| Planorbis | n. | Any fresh-water air-breathing mollusk belonging to Planorbis and other allied genera, having shells of a discoidal form. |
We have 1 clue for the answer “PLANORBIS”
| Clue | Answers |
|---|---|
| FRESHWATER snail | 1 answer |
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Form of quartz with coloured bands
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Hint 1 meaning
A semipellucid, uncrystallized variety of quartz, presenting
various tints in the same specimen. Its colors are delicately arranged
in stripes or bands, or blended in clouds.
Hint 2 anagram
EATAG
Hint 3 another clue
CERTAIN BRAIN SIZE
10 +1
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Sentences with PLANORBIS (5)
Thus Trautschold gives a number of instances with Ammonites, and Hilgendorf has described a most curious case of ten graduated forms of Planorbis multiformis in the successive beds of a fresh-water formation in Switzerland.
Forbes described three closely consecutive beds in a secondary formation, each with representative forms of the same fres-water shells: the case is evidently analogous with that of Hilgendorf ("Ueber Planorbis multiformis im Steinheimer Susswasser-kalk." Monatsbericht of the Berlin Academy, 1866.), but the interesting connecting varieties or links were here absent.
How does matter unite in order to assume life? How does it separate when returning to inertia? The pond, with its Planorbis eggs turning round and round, would have given us a few data for the first problem; the Mole, going bad under conditions not too repulsive, will tell us something about the second: he will show us the working of the crucible wherein all things are melted to begin anew.
The univalve shells most characteristic of fresh-water deposits are, _Planorbis, Limnæa,_ and _Paludina._ (See Figures.) But to these are occasionally added _Physa, Succinea, Ancylus, Valvata, Melanopsis, Melania, Potamides,_ and _ Neritina_ (see Figures), the four last being usually found in estuaries.
The croziers of some of the young ferns are very perfect, and were at first mistaken by collectors for shells of the genus _ Planorbis._ On the whole, the vegetation of Bovey implies the existence of a sub-tropical climate in Devonshire, in the Lower Miocene period.