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: nudus: Name from latin meaning naked, referring to its lack of scales.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range 3 - 10 m (Ref. 90102). Tropical
Western Pacific: Indonesia, Malaysia, Brunei.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 3.3 cm SL male/unsexed; (Ref. 90102)
Morphology | Morphometrics
(total): 6 - 7;
soft rays: 10;
Vertebrae: 26. Characterized by having variable color, mainly brown on head, anterior body, and first dorsal fin; posterior two-thirds of body, tan to light brown color with combination of white and brown marbling and three brown bars; sometimes reddish brown with seven narrow white bars on side; brown median fins, anal fin with blue streaks; dorsal rays VI+I,10; anal rays I,10; pectoral rays 15; no scales on head and body; depth at origin of pelvic fin 5.4 in SL; opening of gill extending forward to level of middle opercle; filamentous first four dorsal spines, longest is first spine, 2.1 in SL; long caudal fin with rounded posterior margin; reduced pattern of cephalic sensory pores B', C, D, F and H' including preopercular canals M' and N; vertebrae 26 (Ref. 90102).
Occurs in about 3-10 m depth, often solitary or shares sandy burrow with alpheid shrimp (Ref. 90102).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Allen, G.R. and M.V. Erdmann, 2012. Reef fishes of the East Indies. Perth, Australia: Universitiy of Hawai'i Press, Volumes I-III. Tropical Reef Research. (Ref. 90102)
IUCN Red List Status (Ref. 115185)
CITES (Ref. 115941)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 28.7 - 29.2, mean 28.9 (based on 264 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00631 (0.00289 - 0.01377), b=3.09 (2.90 - 3.28), in cm Total Length, based on LWR estimates for this (Sub)family-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) .