Elongated, laterally compressed body with alternating black and orange bands. Large eyes and barbels around the mouth for sensing food. Adults can grow 10–12 inches in captivity. Smooth fins and slightly pointed snout.
Slender, elongated body with alternating dark brown and yellowish bands. Small eyes and barbels around the mouth for detecting food. Adults reach 3–4 inches. Smooth fins and flexible body adapted for burrowing.
Slender, elongated, eel-like body with a uniform dark brown to black coloration. Small eyes and barbels around the mouth for detecting food. Adults reach 3–4 inches. Smooth fins, flexible body adapted for burrowing.
Slender, elongated, eel-like body with alternating golden-yellow and dark brown bands. Small eyes and barbels around the mouth for detecting food. Adults reach 3–4 inches. Smooth fins and flexible body adapted for burrowing.
Elongated, slightly compressed body with alternating black and white horizontal stripes. Small eyes, barbels around the mouth for detecting food. Adults reach 3–4 inches. Smooth fins and flexible body for bottom-dwelling and burrowing.
Elongated, slightly compressed body with distinctive black and gold/yellow patterns resembling 'Y' and 'O' shapes. Small eyes and barbels around the mouth for detecting food. Adults reach 4–5 inches. Smooth fins adapted for bottom-dwelling and burrowing.
Elongated body with a bold yellow or orange dorsal stripe running from head to tail, contrasting with a black body. Small eyes and barbels around the mouth for detecting food. Adults reach 3–4 inches. Smooth fins adapted for bottom-dwelling and burrowing.
Elongated, slender body with a pointed, horse-like snout for burrowing. Light brown to gray body with darker horizontal stripes or spots. Small eyes and barbels around the mouth for detecting food. Adults reach 6–8 inches. Smooth, flexible fins adapted for burrowing.
Flattened, elongated body adapted for clinging to rocks. Brown to gray base coloration with intricate patterned markings. Strong suction-cup-like fins for attaching to surfaces in strong currents. Adults reach 2–3 inches. Small mouth positioned ventrally for grazing.
Elongated, eel-like body with light brown or yellowish coloration and darker longitudinal stripes. Small eyes and barbels around the mouth for detecting food. Adults can reach 8–12 inches. Smooth fins adapted for burrowing.
