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Gobiidae (Gobies) > Gobiinae
Etymology: Tomiyamichthys: occurring on sand-rubble bottoms in the vicinity of coral reefs; nudus: Name from latin meaning naked, referring to its lack of scales.
Environment: milieu / climate zone / depth range / distribution range
Ecology
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)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 6 - 7; Dorsal soft rays (total): 10; Anal spines: 1; Anal 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).
Body shape (shape guide): elongated; Cross section: oval.
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. 130435: Version 2025-2)
Threat to humans
Harmless
Human uses
Fisheries: of no interest
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