HETEROSTROPHAHETEROSTROPHA
| Nicaragua 1988 |
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| Giant Sundial Architectonica maxiama (Architectonidae) |
Allmost Heterostropha is marine products, but includes some freshwater groups in a part. The characteristic to be common to Heterostropha are (a) It has a spiral husk. (b) It have a cover. (c)"Torsion" is seen in nervous system. (d) Overcoat cavities develop well and cilia zone develops. (e) A head feeler exists.
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