Family Hypoptychidae - Sand eel
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Order |
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Class |
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Actinopterygii |
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No. in FishBase |
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Genera : 2 | Species : 2 Eschmeyer's Catalog of Fishes |
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Environment |
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Fresh : No |
Brackish : No |
Marine : Yes |
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Division |
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Marine |
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Aquarium |
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none |
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First Fossil Record |
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Remark |
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Distribution: Japan and Korea to Sea of Okhotsk. Body elongate; naked. Dorsal and anal fins located posteriorly. Dorsal soft rays about 20. Anal soft rays about 20. Pectoral fin with 9 rays. Principal caudal fin rays 13; 11 branched. Branchiostegal rays 4. Incomplete circumorbital ring. Premaxillary teeth present only in males. Pleural ribs about 29 pairs; no epipleurals. About 55-57 vertebrae. Hypural plate consisting of upper and lower halves. about 8.5 cm maximum length. Lacking in scutes, spines, pelvic girdle and pelvic fins. |
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Etymology |
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Greek, hypo = under + Greek, ptyx, -ychos = fold, crease ( Ref. 45335). |
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Reproductive guild |
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nonguarders |
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Typical activity level |
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normal |
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Coordinator |
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Osteichthyes | Actinopterygii | Actinopteri | Neopterygii | Teleostei | Osteoglossocephalai | Clupeocephala | Euteleosteomorpha | Neoteleostei | Eurypterygia | Ctenosquamata | Acanthomorphata | Euacanthomorphacea | Percomorphaceae | Percomorpharia | Perciformes | Cottoidei | Hypoptychidae |
Important recommendation:
The list below must not be used as an authority reference synonymy list like those found in scientific published revisions, which must be the source to be used and cited eventually when they exist.
Rather, it reflects the current content of FishBase, and the progress with respect to synchronization with the Catalog of Fishes. However, we think it can be useful for users to assess the quality of information in FishBase, to start new work on the family, or to cross-check with other lists.
But we appreciate to be cited in publications when this list has been of any working value. In particular, for published scientific, we suggest then to cite it in the Material and Method section as a useful tool to conduct the research, but again, not as a taxonomic or nomenclatural authority reference.
Unless it is explicitly precised, the list is not complete, please search all original names published for the family in the Catalog of Fishes (genera, species), including those with uncertain or unknown status, that are not included in FishBase when they are not attached to a valid species.
This list uses some data from Catalog of Fishes (not shown but used to sort names).
In the column CofF, the digit indicates the status of synchronization with CofF: 0: Not checked; 1: Same status; 2: Different status; 3: Other combination; 4: Synonym in CofF; 5: Species/Subspecies issue; 6: Synonym of another species in CofF; 7: Not in CofF; 8: Should not be in CofF. The CofF version currently used is the one published on 23-07-2014 (Ref. 97102).
The list ordered as follows:
Please send comments and corrections if you detect errors or missing names.
Scientifc name | Status | Senior/Junior synonym | Combination | CofF |
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Hypoptychus dybowskii Steindachner, 1880 | accepted | senior | original | 2 |
Hypoptychus steindachneri Franz, 1910 | synonym | junior | original | 2 |
Aulichthys japonicus Brevoort, 1862 | accepted | senior | original | 2 |