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Phylum Chordata > Subphylum Vertebrate > fishes > Family Gobiidae > mudskippers
Slender mudskipper
Periophthalmus gracilis*

Family Gobiidae
updated Sep 2020

Where seen? A small, well camouflaged mudskipper that is seen in mangroves and other silty shores.

Features: 4-5cm. A tiny mudskipper with slender body. Gianluca Polgar of the Encyclopedia of Life highlighted these features that identify the Slender mudskipper: The first dorsal fin has a dark spot at the base towards the tail, lacks a white margin, lacks a red tint and is relatively small in size, with a wide interdorsal gap (distance between the first dorsal fin, and the longer dorsal fin further back on the top of the body). More about how to tell apart small mudskippers commonly found on our shores.

Chek Jawa, Jun 13

Large gap between the first dorsal fin and second dorsal fin
Labrador, Jan 09

*Species are difficult to positively identify without close examination.
On this website, they are grouped by external features for convenience of display.

Slender mudskippers on Singapore shores
On wildsingapore flickr

Acknowledgements
Grateful thanks to Gianluca Polgar of the Encyclopedia of Life for sorting out many of the photos on wildsingapore flickr and for highlighted these features that identify the Slender mudskipper:

Links
References
  • Larson, Helen K and Kelvin K. P. Lim. 2005. A Guide to Gobies of Singapore. Singapore Science Centre. 164pp.
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