A pajama cardinalfish (Sphaeramia nematoptera) at night off the island of Yap, Micronesia, Pacific

actinopterygii animal animal eyes animal fins animal markings animal themes animals in the wild apogonidae aquatic cardinal fish cardinalfish caroline islands chordata close up color image extreme close up eyes fauna fin fish full length horizontal ichthyology kurtiformes little marine biology micronesia mini nature night nighttime no people ocean life oceania ocular one animal outdoors pajama cardinalfish photography polkadot cardinalfish portrait profile sea life side view small southeast asia species sphaeramia nematoptera swimming tropical fish undersea underwater wildlife yap zoology