Species database

Marine species in United States (Guam)

45 species divers have recorded here, each verified against the World Register of Marine Species. Log your dives on DIVR to add to the record.

Commonly seen

18

You have a good chance of spotting these on a typical dive.

Backsurgeonfish (Acanthurus nigricans)common

Acanthurus nigricans

Backsurgeonfish

Fish
Brown Surgeonfish (Acanthurus nigrofuscus)common

Acanthurus nigrofuscus

Brown Surgeonfish

Fish
Orange-Lined Triggerfish (Balistapus undulatus)common

Balistapus undulatus

Orange-Lined Triggerfish

Fish
Dwarf Angelfish (Centropyge flavissima)common

Centropyge flavissima

Dwarf Angelfish

Fish
Darkfin Hind (Cephalopholis urodeta)common

Cephalopholis urodeta

Darkfin Hind

Fish
Bullethead Parrotfish (Chlorurus spilurus)common

Chlorurus spilurus

Bullethead Parrotfish

Fish
Blueribbon Damsel (Chrysiptera brownriggii)common

Chrysiptera brownriggii

Blueribbon Damsel

Fish
Lined Bristletooth (Ctenochaetus striatus)common

Ctenochaetus striatus

Lined Bristletooth

Fish
Checkerboard Wrasse (Halichoeres hortulanus)common

Halichoeres hortulanus

Checkerboard Wrasse

Fish
Bluestreak Cleaner Wrasse (Labroides dimidiatus)common

Labroides dimidiatus

Bluestreak Cleaner Wrasse

Fish
Blackspotted Wrasse (Macropharyngodon meleagris)common

Macropharyngodon meleagris

Blackspotted Wrasse

Fish
Pinktail Triggerfish (Melichthys vidua)common

Melichthys vidua

Pinktail Triggerfish

Fish
Orangespine Unicornfish (Naso lituratus)common

Naso lituratus

Orangespine Unicornfish

Fish
Ringtail Maori Wrasse (Oxycheilinus unifasciatus)common

Oxycheilinus unifasciatus

Ringtail Maori Wrasse

Fish
Arc-Eye Hawkfish (Paracirrhites arcatus)common

Paracirrhites arcatus

Arc-Eye Hawkfish

Fish
Banded Goatfish (Parupeneus multifasciatus)common

Parupeneus multifasciatus

Banded Goatfish

Fish
Blue-Fin Wrasse (Thalassoma lutescens)common

Thalassoma lutescens

Blue-Fin Wrasse

Fish
Five Striped Surge Wrasse (Thalassoma quinquevittatum)common

Thalassoma quinquevittatum

Five Striped Surge Wrasse

Fish

Occasionally seen

14

Regular residents, but not on every dive.

Lined Surgeonfish (Acanthurus lineatus)occasional

Acanthurus lineatus

Lined Surgeonfish

Fish
Gendarme Fish (Acanthurus olivaceus)occasional

Acanthurus olivaceus

Gendarme Fish

Fish
Dwarf Angelfish (Centropyge shepardi)occasional

Centropyge shepardi

Dwarf Angelfish

Fish
Citron Butterfly (Chaetodon citrinellus)occasional

Chaetodon citrinellus

Citron Butterfly

Fish
Katherine's Wrasse (Cirrhilabrus katherinae)occasional

Cirrhilabrus katherinae

Katherine's Wrasse

Fish
Twospot Surgeonfish (Ctenochaetus binotatus)occasional

Ctenochaetus binotatus

Twospot Surgeonfish

Fish
Blackside Hawkfish (Paracirrhites forsteri)occasional

Paracirrhites forsteri

Blackside Hawkfish

Fish
Dark Damsel (Plectroglyphidodon fasciolatus)occasional

Plectroglyphidodon fasciolatus

Dark Damsel

Fish
Johnston Island Damsel (Plectroglyphidodon johnstonianus)occasional

Plectroglyphidodon johnstonianus

Johnston Island Damsel

Fish
Common Parrotfish (Scarus psittacus)occasional

Scarus psittacus

Common Parrotfish

Fish
Jewel Damsel (Stegastes lacrymatus)occasional

Stegastes lacrymatus

Jewel Damsel

Fish
Banda Wrasse (Stethojulis bandanensis)occasional

Stethojulis bandanensis

Banda Wrasse

Fish
Boomerang Triggerfish (Sufflamen bursa)occasional

Sufflamen bursa

Boomerang Triggerfish

Fish
Black Triggerfish (Sufflamen chrysopterum)occasional

Sufflamen chrysopterum

Black Triggerfish

Fish

Rare finds

13

Lucky encounters worth logging.

Small Toothed Jobfish (Aphareus furca)rare

Aphareus furca

Small Toothed Jobfish

Fish
Spotted Sharpnose (Canthigaster solandri)rare

Canthigaster solandri

Spotted Sharpnose

Fish
Dwarf Angelfish (Centropyge heraldi)rare

Centropyge heraldi

Dwarf Angelfish

Fish
Dot and Dash Butterflyfish (Chaetodon punctatofasciatus)rare

Chaetodon punctatofasciatus

Dot and Dash Butterflyfish

Fish
Black Butterflyfish (Chaetodon reticulatus)rare

Chaetodon reticulatus

Black Butterflyfish

Fish
African Clown Wrasse (Coris gaimard)rare

Coris gaimard

African Clown Wrasse

Fish
Jawslinger (Epibulus insidiator)rare

Epibulus insidiator

Jawslinger

Fish
Bird Wrasse (Gomphosus varius)rare

Gomphosus varius

Bird Wrasse

Fish
Bigeye Emperor (Monotaxis grandoculis)rare

Monotaxis grandoculis

Bigeye Emperor

Fish
Fire Dartfish (Nemateleotris magnifica)rare

Nemateleotris magnifica

Fire Dartfish

Fish
Disappearing Wrasse (Pseudocheilinus evanidus)rare

Pseudocheilinus evanidus

Disappearing Wrasse

Fish
Schlegel's Parrotfish (Scarus schlegeli)rare

Scarus schlegeli

Schlegel's Parrotfish

Fish
Moorish Idol (Zanclus cornutus)rare

Zanclus cornutus

Moorish Idol

Fish