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Phylum Chordata > Subphylum Vertebrate > fishes > Family Gobiidae > mudskippers
Blue-spotted mudskipper
Boleophthalmus boddarti

Family Gobiidae
updated Sep 2020

Where seen? This pretty spotted mudskipper is sometimes seen in the back mangroves of our Northern shores. Large adults often seen on very very soft mud. During high tide, it hides in its burrow with a bubble of air.

Features: To 22cm long, those seen about 6-8cm. Brown with 6-7 dark diagonal bars along the body. Lots of tiny blue spots on the 'cheeks', along the sides of the body and on the dorsal and other fins. In adult females, the first dorsal fin has elongated spines that stick out like long filaments.

Adult females have elongated spines
on the first dorsal fin.

Pulau Ubin, Apr 13

Chek Jawa, Jan 10

Seletar, Aug 11
What does it eat? It grazes on algae and edible bits on the surface of the mud, gathering these by moving its head rapidly from side to side. So it comically appears to be constantly saying 'No! No! No! '.

Human uses: It is said to be eaten in some places and sometimes sold in markets.

Blue-spotted mudskippers on Singapore shores
On wildsingapore flickr

Other sightings on Singapore shores

Sungei Buloh Wetland Reserve, Dec 06
Photo shared by Marcus Ng on flickr.

Pasir Ris, Dec 10
Photo shared by Loh Kok Sheng on his blog.

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