Alex Mustard / Harlequin sweetlips (Plectorhinchus chaetodonoides) cleaned by a pair of bluestreak cleaner wrasse (Labroides dimidiatus). South Atoll, Tubbataha Atolls, Tubbataha Reefs Natural Park, Palawan, Philipp...

Pascal Kobeh / Harlequin sweetlips (Plectorhinchus chaetodonoides) and school of Yellow sweepers (Parapriacanthus ransonneti). On reef covered with Soft coral (Dendronephthya sp). Flores Sea, Indonesia.

Bert Willaert / Oriental sweetlips (Plectorhinchus vittatus) and Harlequin sweetlips (Plectorhinchus chaetodonoides), Bismarck Sea, Vitu Islands, West New Britain, Papua New Guinea

Franco Banfi / Many-spotted sweetlips (Plectorhinchus chaetodonoides) Tubbataha Reef Natural Park, UNESCO World Heritage Site, Sulu Sea, Cagayancillo, Palawan, Philippines

Franco Banfi / Shoal of Many-spotted sweetlips (Plectorhinchus chaetodonoides) on a cleaning station, Tubbataha Reef Natural Park, UNESCO World Heritage Site, Sulu Sea, Cagayancillo, Palawan, Philippines

Alex Mustard / Long exposure of a juvenile Harlequin sweetlips (Plectorhinchus chaetodonoides), which dance as a defence from predators. The dance may mimic the movements of poisonous flatworms or may simply confuse...

Alex Mustard / Harlequin sweetlips (Plectorhinchus chaetodonoides) with cleaning Bluestreak cleaner wrasse (Labroides dimidiatus) and Bicolour cleaner wrasse (Labroides bicolor) South Atoll, Tubbataha Atolls, Tubbat...

Juergen Freund / Juvenile Harlequin / Many spotted sweetlips (Plectorhinchus chaetodonoides) swimming by undulating its body sideways imitating a flatworm. Lembeh Strait, North Sulawesi, Indonesia.

Juergen Freund / Juvenile Harlequin / Many spotted sweetlips (Plectorhinchus chaetodonoides) swiming by undulating its body sideways, imitating a flatworm. Lembeh Strait, North Sulawesi, Indonesia.

Fred Bavendam / Spotted Sweetlips (Plectorhinchus chaetodonoides) juvenile, Lembeh Strait, Indonesia

Fred Bavendam / Spotted Sweetlips (Plectorhinchus chaetodonoides) juvenile, Lembeh Strait, Indonesia

Michael Pitts / Many spotted / Harlequin sweetlips {Plectorhynchus chaetodonoides} Palau, Micronesia, Pacific