Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Gobiidae
(Gobies) > Gobiinae
Etymology: Gobiopsis: Latin, gobius = gudgeon + Greek, opsis = appearance (Ref. 45335); namnas: Named for the NAtional Museum of NAture and Science (arbitrary abbreviation, capitalized), the institution that conducted the deep-water biological survey which collected all type specimens.
Environment: milieu / climate zone / depth range / distribution range
Marine; benthopelagic; depth range ? - 101 m (Ref. 84002). Subtropical
Northwest Pacific: Japan.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 3.2 cm SL male/unsexed; (Ref. 84002); 3.5 cm SL (female)
Morphology | Morphometrics
soft rays: 7;
Vertebrae: 26. This species is readily distinguished from its congeners in having the following characters: head barbels absent (vs. present); segmented dorsal-fin rays 8-9 (vs. typically 10-12); longitudinal scales 24-26 (vs. > 30); transverse scales 8-9 from anal-fin base upward and forward to base of dorsal fin (vs. 12 or more); scales present on upper part of cheek and operculum (vs. absent) (Ref. 84002).
All type specimens were captured by a beam trawl at the depth of 101 m; no substratum data of the habitat were available. Found with many other fish specimens, e.g., the champsodontid
Champsodon snyderi and the gobiid Amblychaeturichthys sciistius (Ref. 84002).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Shibukawa, K., 2010. Gobiopsis namnas, a new deep-dwelling goby (Teleostei: Perciformes: Gobiidae: Gobiinae) from Japan. Bull. Natl. Mus. Nat. Sci., Ser. A, (Suppl. 4):97-106. (Ref. 84002)
IUCN Red List Status (Ref. 119314)
CITES (Ref. 115941)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.2 ±0.3 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .