Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Gobiiformes (Gobies) >
Gobiidae (Gobies) > Gobionellinae
Etymology: Rhinogobius: Greek, rhinos = nose + Latin, gobius = gudgeon (Ref. 45335); sudoccidentalis: Name from Latin words 'sud' meaning 'south' and 'occidentalis' for 'western', for this species was discovered in Chongqing and Guizhou Province in the southwestern region of China.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; demersal; depth range 0 - 1 m (Ref. 132591). Subtropical
Distribution
Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
Asia: China.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 4.1 cm SL male/unsexed; (Ref. 132591); 3.7 cm SL (female)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 7 - 8; Dorsal soft rays (total): 8 - 9; Anal spines: 1; Anal soft rays: 6 - 7; Vertebrae: 29. This species can be distinguished from its congeners by the following characters: D1 VI-VII, D2 I,8-9; longitudinal scale series usually 22-24 (most commonly 23), while the transverse scale series typically comprises 7-8 scales (most commonly 8); predorsal scale series absent; total vertebrae 12 + 17 = 29; a black line stripe beneath the eye that extends to the mandible (Ref. 132591).
Cross section: oval.
Occurs mainly in areas characterized by large cobblestone substrates and slow-flowing water at depths ranging from approximately 30-50 cm. This species utilizes the cobblestone bottom as an egg deposition site, with eggs characterized as large (size 1.6-2.1 mm). During periods of high water levels in the creek, individuals aggregate near the shore to seek refuge from the rapids (Ref. 132591).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Li, L.-Z., C.-Y. Li, W.-H. Shao, S.-X. Fu and C.-W. Zhou, 2024. Two new species of freshwater goby (Teleostei, Gobiidae) from the upper Youshui River, Chongqing, China. ZooKeys (1210):173-195. (Ref. 132591)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
Fisheries: of no interest
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Trophic level (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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