Solenichthys paegnius (Jordan & Thompson, 1914) Solenostomus paegnius, the roughsnout ghost pipefish is a species of ghost pipefish from the family Solenostomidae.

It is an Indo-Pacific species which occurs from the Red Sea east to Japan and Australia.

It occurs over algal/rubble reefs and sandy sea beds, often below depths of 10 metres (33 ft) They are largely pelagic until they settle on the substrate to breed.

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