Small. Big eyes with nictitating membranes. Two equal-sized dorsal fins. Origin of first dorsal fin opposite (or slightly behind) the free rear ends of the pectoral fins. (Most true "cat sharks" first dorsal fin origin is opposite to, or close by, the pelvic fins).
Coloration
Small and big brown dots over entire body, inclusive fins. Sometimes with white dots, too. Brownish basic color with white ventral surface. Sometimes found with inconspicuous dark saddles.