Pearlfishes have a translucent, scaleless eel-like bodie. The largest pearlfish are about 50 cm in length. They reproduce by laying oval-shaped eggs, about 1 mm in length.
Pearlfishes are live inside various types of invertebrates, including sea cucumbers, clams, starfish, or sea squirts.
Echiodon and Snyderidia - free-living
Carapus and Onuxodon - commensal
Encheliophis - parasitic
Carapus homei (Richardson, 1846)
Carapus neglectus (Peters, 1855)
Echeliophis homei (Richardson, 1846) (misspelling)
Fierasfer affinis Günther, 1862
Fierasfer brandesu (Bleeker, 1851) (misspelling)
Fierasfer homei (Richardson, 1846)
Fierasfer neglectum Peters, 1855
Oxybeles brandesii Bleeker, 1851
Oxybeles homei Richardson, 1846
Oxybelus brandesii Bleeker, 1851 (synonym)