Psammogobius pisinnus is a tiny pale species of goby, with a background colour of grey to whitish and marked with three broad brown blotches on its upper sides, the first blotch is the darkest and is located underneath first dorsal fin, the cheek and gill covers are mottled dark brown, and there a whitish stripe on the middle pectoral fin rays.
The specific name refers to the very small size of the adults, they attain a total length of 2 centimetres (0.79 in).
Psammogobius pisinnus is a tiny pale species of goby, with a background colour of grey to whitish and marked with three broad brown blotches on its upper sides, the first blotch is the darkest and is located underneath first dorsal fin, the cheek and gill covers are mottled dark brown, and there a whitish stripe on the middle pectoral fin rays. The specific name refers to the very small size of the adults, they attain a total length of 2 centimetres (0.79 in).
Psammogobius pisinnus