Yellowfin Snubnose Goby, Pseudogobius fulvicaudus Huang, Shao & Chen 2014


Summary:
A small mangrove-dwelling goby with 4-5 oblique black bars along the back and upperside, two black spots on the caudal-fin base, a black blotch on the rear of the first dorsal fin, and a large bright yellow semicircular blotch on the caudal-fin base.

Cite this page as:
Bray, D.J. 2022, Pseudogobius fulvicaudus in Fishes of Australia, accessed 29 Mar 2024, https://fishesofaustralia.net.au/Home/species/5493

Yellowfin Snubnose Goby, Pseudogobius fulvicaudus Huang, Shao & Chen 2014

More Info


Distribution

Darwin area and Maningrida, Northern Territory. Elsewhere the species occurs in the tropical east-Indo-west Pacific. 

Features

Dorsal fin VI + I,6-7; Anal fin I,6-7; Pectoral fin 13-16; Caudal fin segmented rays in 8/7 or 9/7 pattern; Lateral scale rows 23-27; Predorsal scales 6-7.
A small Pseudogobius with 2–4 rows of cycloid scales on opercle; cheek naked; shoulder girdle with smooth narrow flange or smooth edge; tongue short, usually blunt; in males, teeth in outer row largest and widely spaced, slightly flattened and usually straight with pointed tips; in females, outer row teeth very small, close-set, evenly sized and usually blunt-tipped.
First dorsal fin lacking filaments; large ctenoid scales on side. 

Colour

Head and body translucent to pale yellowish with 5–6 diffuse greyish saddles on dorsum that may extend ventrally as indistinct bars and mid-side of body with five brownish blotches; on scaly base of caudal fin, two blackish rounded spots, placed above and below last mid-lateral brownish spot and broad half-moon shaped to vertical yellow bar extending from these dark spots onto caudal fin itself.

Similar Species

This species can be distinguished from its congeners most easily by the colour pattern of two black spots at the caudal-fin base and the associated semicircular to vertical band of bright yellow on the anterior part of the caudal fin which is usually otherwise transparent (lacking dark spots); the four diffuse narrow bars evenly spaced along the body, and its small adult size (19 mm SL).

Etymology

The specific name fulvicaudus is from the  Latin fulvus (= yellow) and caudus (= caudal fin), in reference to the diagnostic  bright yellow mark on the caudal fin base in adult males.

Species Citation

Pseudogobius fulvicaudus Huang, Shao & Che 2014, Journal of Marine Science and Technology 21, Suppl. [2013]: 119, Figs. 2e-3. Type locality: Matang mangrove, Malaysia. 

Author

Bray, D.J. 2022

Resources

Atlas of Living Australia

Yellowfin Snubnose Goby, Pseudogobius fulvicaudus Huang, Shao & Chen 2014

References


Hammer, M.P., Adams, M., Unmack, P.J., Hassell, K.L. & Bertozzi, T. 2021. Surprising Pseudogobius: Molecular systematics of benthic gobies reveals new insights into estuarine biodiversity (Teleostei: Gobiiformes). Molecular Phylogenetics and Evolution 60: 107140, https://doi.org/10.1016/j.ympev.2021.107140.

Larson, H.K. & Hammer, M.P. 2021. A revision of the gobiid fish genus Pseudogobius (Teleostei, Gobiidae, Tridentigerinae), with description of seven new species from Australia and South-east Asia. Zootaxa 4961(1), https://doi.org/10.11646/zootaxa.4961.1.1

Huang, S.-P., Shao, K.-T., Huang, H.-M., Chong, V.-C. & Chen, I.-S. 2014. An annotated checklist of gobioid fishes from the mangrove estuary of Matang, Malay Peninsula, with comments on a new Pseudogobius (Teleostei: Gobiidae) species. Journal of Marine Science and Technology 21, Suppl. [2013]: 106-116.

Quick Facts


CAAB Code:37428459

Habitat:Mangroves, estuaries

Max Size:1.9 cm SL

Species Maps

CAAB distribution map