You have yourself an Ancistrus hoplogenys L183.
Common Names: Starlight Bristlenose, Whiteseam Pleco
Discovered by: Kner in 1854
Found in: brazil: central and lower Rio Negro
Max size is: 12 cm/ 4.5 inches
Temp: 75-82 F
Temperament: generally docile
Food Requirement: Algae, vegatable matter. You can offer these guys Bloodworms/blackworms, brine shrimp beefheart as a treat.
pH: Neutral 6.5-7.2