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Grammonus minutus  Nielsen & Prokofiev, 2010

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Grammonus minutus
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Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Ophidiiformes (Cusk eels) > Bythitidae (Viviparous brotulas) > Bythitinae
Etymology: Grammonus: Greek, gramma = signal, mark + Greek, onos = hake;  minutus: short length at which the males attain maturity and ripen (Ref. 84063).   More on author: Nielsen.

Environment / Climate / Range Ecology

Marine; benthopelagic; depth range 70 - 119 m (Ref. 94063).   Tropical, preferred ?; 13°N - 12°N, 109°E - 110°E

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Pacific Ocean: off Central Vietnam. Known from two localities (Ref. 84063).

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 5.5 cm SL male/unsexed; (Ref. 84063)

Short description Morphology | Morphometrics

Grammonus minutus differs from the nine described Grammonus species since it exhibits the following combination of characters: fin rays in dorsal 75–76, anal 54–55, pectoral 22–23, number of vertebrae 12 + 30, interorbital 7.4% of SL. Males have already reached maturity by a length of 32 mm SL.

Biology     Glossary (e.g. epibenthic)

Depending on the changes in the current system in the Bay of Nha Trang and adjoining areas, juveniles and adolescents of deep-water fishes occur in the collection area at these shallow depths. According to T.T. Hieu, Institute of Oceanography, Nha Trang (personal communication, 2009), there are a number of deep canyons cutting into the outer shelf, which explains the capture of many relatively deep-living species. It is thus possible that G. minutus may live deeper than indicated by the actual trawling depths (Ref. 84063).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Nielsen, J.G. and A.M. Prokofiev, 2010. A new, dwarf species of Grammonus (Teleostei: Bythitidae) found off Vietnam. Ichthyol. Res. 57:189-192. (Ref. 84063)

IUCN Red List Status (Ref. 115185)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




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