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Family Halammohydridae
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Order |
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Class |
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Hydrozoa |
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No. of Genera in Ref. |
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1 |
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No. of Species in Ref. |
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9 |
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Environment |
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Fresh : No |
Brackish : No |
Marine : Yes |
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Aquarium |
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First Fossil Record |
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Remark |
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Actinulidae consiting in a long gastric tube and a small aboral cone joined by a neck-like part; aboral cone with an adhesive organ; the manubrium ends blindly close behind the neck and opens orally through the mouth; with an aboral nerve ring; with two aboral whorls of amphicoronate solid tentacles and an alternating ring of ecto-endodermic statocysts; gonochoristic; without brood pouch (=subumbrellar cavity; Ref. 3134, p. 56). |
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Etymology |
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Division |
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Reproductive guild |
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Typical activity level |
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Main Ref. |
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Coordinator |
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