Home > Invertebrates > Jellyfishes & Comb Jellies

Phylum Cnidaria, Class Scyphozoa & Cubozoa

Jellyfishes

Scyphozoans comprise the 'typical' jellies whose dominant adult form is a large free-swimming medusa, while the sessile polyp phase is cryptic.  As with the related hydroids, several species have been accidentally introduced to Hawaii by ships.  The Portuguese Man-o'-war is actually a hydroid but included here for convenience.

See Comb jellies below

Click image for information & photos

 

HAWAII

Cassiopea andromeda

UPSIDE-DOWN JELLYFISH

 

 Aurelia sp.

MOON JELLYFISH

 
Phyllorhiza punctata

WHITE-SPOTTED JELLYFISH

 

 Thysanostoma sp.

PELAGIC JELLYFISH

 
Cephea cephea

CROWNED JELLYFISH

 

 Various species

 

 
Porpita pacifica

BLUE BUTTON

 

 Velella velella

BY-THE-WIND SAILOR

 
Physalia utriculus

Portuguese Man-O'-War, Waimanalo Beach

PORTUGUESE MAN-O'-WAR

 

 Alatina moseri

WINGED BOX JELLY

NORTHEAST PACIFIC

Chrysaora colorata

PURPLE BANDED JELLYFISH

 

 Cyanea capillata

RED JELLYFISH

WESTERN ATLANTIC

Chrysaora quinquecirrha

SEA NETTLE

 

Phylum Ctenophora

Comb Jellies

 

HAWAII

Coeloplana bannwarthi

SESSILE COMB JELLY

 Various species