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Family Krohnittellidae
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Order
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Class
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Sagittoidea
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No. of Genera in Ref.
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2
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No. of Species in Ref.
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3
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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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All species are bathypelagic and most likely inhabit bottom water layer (Ref. 1659). Uppermost depth limit of distribution is 1,000 m deep. Morphological characters: (1) no transverse musculature is present in both the trunk and tail regions; (2) there is a single pair of lateral fins or gelatinous structures replacing the latter; (3) the setae are evenly curved, without showing a sharp bend, the denticles, if present, are not arranged into a bundle (like in Krohnittidae); (4) no digestive diverticula are present on the midgut (Ref. 1658).
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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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