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Marine Fauna Phyla

Annelida

Shore Crab

 

Includes both marine and terrestrial species and is characterised by the division of the body into externally visible segments which distinguishes them from other worm like creatures.

Family Index

 

Tubeworm Spirorbis spirorbis

 

Arthropoda

Shore Crab

 

This is a highly diverse phylum and its marine representatives include shrimps, crabs, lobsters , barnacles and sea-spiders.

Family Index

 

 

 

Common Shore Crab Carcinus maenas

 

Bryozoa

Bryozoa

Small colonial, mainly sessile animals which occur in a variety of shapes and sizes various substrates such as seaweed or rocks in both the intertidal and sublittoral zones.

Family Index

 

 

 

 

Hairy Sea-mat Electra pilosa

 

Chordata

Sea Squirt

This sophisticated phylum includes the tunicates and fishes, amphibians, reptiles, birds and mammals.

Family Index

 

 

Sea Squirt Ascidiella scabra

 

Cnidaria

Beadlet anemone

 

Formerly known as Coelenterata, this phylum includes the sea-anemones, jellyfishes, corals and the hydroids or sea-firs. They can be highly polymorphic showing both a sedentary form (polyp) and a mobile form (medusa) in a single species.

Family Index

 

 

Beadlet Anemone Actinia equina

 

Mollusca

Dog Whelk

 

Another highly diverse group which includes the chitons, winkles, whelks, limpets, sea-slugs, mussels, oysters cockles, squid, cuttlefishes and octopuses. The shell may either be external or internal and concealed as in the case of the sea-slugs and cuttlefishes.

Family Index

 

 

Dog Whelk Nucella lapillus

 

Porifera

Puse Sponge

Variable in colour and form, the sponges were not classified as animals until 1825. They are sessile but produce mobile larvae (planulae). They are classified according to the nature of their spicules - composed of either calcium carbonate or silica and spongin fibres.

Family Index

 

 

Purse Sponge Grantia compressa