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The Seashore

Rocky Shore Species by Classification

Scroll down the page to find the kingdoms, phylum groups and species. For the animals they are arranged, approximately in the order of their complexity. See also plankton.

Animal Kingdom

Phylum Porifera - the Sponges

Sponge Purse - Sponge Bread crumb - Orange Sponges

Phylum Cnidaria - sea anemones, hydroids and jellyfish

Beadlet Anemone - Snakeslock Sea Anemone -Gem Anemone -Dahlia anemone - Jellyfish - Hydroids

Phylum Ctenophora - sea gooseberries or comb jellies

Sea Gooseberry

Phylum Platyhelminthes - flatworms

Class Turbellaria - free-living flatworms

Candy stripe flatworm

Phylum Nemertine - the Ribbon Worms

Bootlace Worm Nemertine

Phylum Annelida - true worms, with chaetae or bristles on segmentmented body

Class Polychaeta

Scale Worm - Keeled Tubeworm Pomatoceros - Tubeworms - Green Worm Eulalia viridis - Tomopteris worm - Terebellid Worms


Phylum Bryozoa

Sea Mat

Phylum Arthropoda - those with jointed bodies and limbs, external skeleton

Class Crustacea - crustaceans with two pairs of antennae

Barnacle, - Saccullina Crab Parasite - Palaemon Prawns - Spider crab - Sea Slater (Ligia) - Sandhoppers - Porcelain crab - Hermit Crab - Edible Crab - Common Shore Crab - Swimming crab - Squat lobster Galathia - Goneplax crab -


Class Insecta - the insects with 3 pairs of legs, one pair of antennae

Springtails marine - Marine bristletail

Class Arachnida - spiders and mites with four pairs of legs

Pseudo scorpion - Sea spider (Nymphon)

Phylum Mollusca

Class Gastropoda

Sea Slugs - Sea Hare - Periwinkle Rough - Periwinkle Edible - - Limpets Common - Limpet Blue-rayed - Mussels - Netted dogwhelk - Flat or Smooth Perwinkles - Dog whelks - Chitons - Topshells - Keyhole limpet - Melaraphe - Cowrie Shell - Piddock Shells

Laver Spire Shell Hydrobia - Cockle

Class Bivalva

Mussels - Lasea adansoni (L.rubra) - Scallops


Phylum Echinodermata

Brittlestars -Bloody Henry - Cushion Star

- Urchin - Starfish - Crinoids Feather Stars -Holothuria (Aslia) Sea Cucumbers - Echinus3 -


Phylum Hemichordata

Acorn Worm


Phylum Chordata

Subphylum Urochordata - the tunicates. All are marine and the larvae, unlike the adults, show some characteristics of chordates.

Sea Squirt and Star Ascidians


Class Pisces - Fish

Blenny or shanny - Butterfish - Cornish sucker fish - Dogfish - Lumpfish - Rockling - Sand eels - Worm Pipefish


Class Aves - Birds


Protista Kingdom

Green Algae

Gutweed Enteromorpha

Sea Lettuce (Ulva lettuca)

Cladophora rupestris

Brown Algae

Boot Lace (Chorda filum)

Knotted or Egg Wrack (Ascophylum nodosum)

Kelp species Laminaria species

Bladder Wrack (Fucus vesiculosus)

Dabberlocks (Alaria esculenta)

Thongweed (Himanthalia elongata)

Channel wrack (Pelvetia canaliculata)

Saw Wrack (Fucus serratus)

Twisted or Spiral Wrack (Fucus spiralis)

Furbellows (Saccorhiza polyschides)

Red Algae

Pepper Dulse (Osmundea pinnatifida)

Irish Moss Chondrus crispus) -

Catanella a red alga

Coral weed (Corallina officinalis)

Dulse (Palmaria palmata)

Laver (Porphyra sp)


Encrusting Red Algae

Ceramium spp

Polysiphonia lanosa



White & Grey Lichen Belt

Lichen Lichina pygmaea and Lichina confinis

Sea ivory lichen - Grey Lichen Belt

Tar lichens (Verrucaria species)

Yellow and Orange Lichen Belt

Also we have a special lichen section that describes many of the species found on the seashore.


Plant Kingdom


Phylum Spermatophyta - the flowering plants



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All images are Copyright Julian Cremona, Dale Fort


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