Rocky Shore Taxonomy

Question 1

Answer 1

Phylum; Echinodermata

Class; Ophiuroidea

Genus; Ophiura

Species; Ophiura

Question 2

Answer 2

Phylum; Echinodermata

Class; Asteroidea

Genus;

Species;

Question 3

Answer 3

Phylum; Mollusca

Class; Gastropoda

Genus; Patella

Species; Vulgata

NOTE; pink foot = patella ulyssiponesis

Question 4

Answer 4

Phylum; Echinodermata

Class; Echinoidea

Genus; Echinus

Species; esculentus

Question 5

Answer 5

Common. No dip in join. Less ruffled plates.

Phylum; Arthropoda

Class; Hexanauplia

Genus; Semibalanus

Species; balanoides

Question 6

Answer 6

Not found on NE. Dip in join. More ruffles plates.

• Phylum; Arthropoda
• Class; Hexanauplia
• Genus; Chthamalus
• Species; Montagui

Question 7

8

Answer 7

Shore crab Adults dark green

• Phylum; Arthropoda
• Class; Malacostraca
• Genus; Carcinus
• Species; maenas

Question 8

Answer 8

Round featureless, reddish brown carapace. Black chelae. Looks like a Cornish pasty.

• Phylum; Arthropoda
• Class; Malacostraca
• Genus; Cancer
• Species; pagurus

Question 9

Answer 9

Greyish brown on top Dirty yellow beneath Pereopods heavily setose.

• Phylum; Arthropoda
• Class; Malacostraca
• Genus; Porcellana
• Species; Platyches

Question 10

Answer 10

Greenish tinted

• Phylum; Arthropoda
• Class; Malacostraca
• Genus; Diogenes
• Species; Pugilator

Question 11

6

Answer 11

Devil crab

• Phylum; Arthropoda
• Class; Malacostraca
• Genus; Necora
• Species; Puber

Question 12

Answer 12

Common intertidal. Big and dark red/ brown. Violet tips of spines.

• Phylum; Echinodermata
• Class; Echinoidea
• Genus; Psammechinus
• Species; Miliaris

Question 13

Answer 13

• Phylum; Mollusca
• Class; Gastropoda
• Genus; Nucella
• Species; Lapillus

Question 14

Answer 14

• Phylum; Mollusca
• Class; Gastropoda
• Genus; Littorina
• Species; Littorea

Question 15

Answer 15

• Phylum; Arthropoda
• Class; Malacostraca
• Genus; Pisidia
• Species; Longicornis

Small carapace = >1cm\

Unequal chelipeds

Long and slender antennae

Question 16

Answer 16

Phylum; Echinodermata

Class; Ophuroided

Genus; Ophiothrix

Species; fragilis

2 cm disc, dark horizontal bands on arms, orange gonads expand ventral side between arms.

Question 17

Answer 17

Phylum; Chordata

Class; Ascidiarcea

Genus; Ciona

Species; Intestinalis

Soft translucent test, pale yellow-green, cylindrical

Question 18

Answer 18

• Ochrophyta
• Phaeophyceae
• Laminaria digitata

Question 19

Answer 19

• Ochrophyta
• Phaeophyceae
• Fucus serratus

Question 20

Answer 20

• Ochrophyta
• Phaeophyceae
• Saccharina latissima

1. Long unidivided frond.
2. No midrib.
3. Short stipe.

Question 21

Answer 21

• Ochrophyta
• Phaeophycecae
• Laminaria hyperborea

1. Stiff, rough, texured, oval stipe.
2. Broad, tough, flat blade which is divided into 5-20 straps.

Question 22

Answer 22

• Ochrophyta
• Phaeophyceae
• Fucus vesiculosis

Question 23

Answer 23

• Ochrophyta
• Phaeophyceae
• Fucus spiralis

1. ridge along recpeticles
2. no air bladders

Question 24

Answer 24

• Ochrophyta
• Phaeophyceae
• Ascophyllum nodosum

1. Long strap like frond
2. No air bladders

Question 25

Answer 25

* Rhodophyta * Florideophyceae * Polysiphonia lanosa 1. Epiphyte on ascophyllum nodosum

Question 26

Answer 26

* Ochrophyta * Phaeophytaceae * Pelvetia canaliculata 1. Fronds are curled longitudinally

Question 27

Answer 27

* Rhodophyta * Florideophyceae * Mastocarpus stellatus

Question 28

Answer 28

* Rhodophyta * Florideophyceae * Chondrus crispus 1. purpleish / red 2. dichotomous fronds

Question 29

Answer 29

* Rhodophyta * Florideophyceae * Osmundea pinnatifida 1. alternate branching 2. branches becoming shorter towards apex

Question 30

Answer 30

* Rhodophyta * Florideophyceae * Osmundea hybrida 1. dark purpleish to greenish yellow fronds 2. mostly alternate branching

Question 31

Answer 31

* Mollusca * Gastropoda * Littorina saxatilis 1. rougher shell than L.littorea

Question 32

Answer 32

* Mollusca * Gastropoda * Littorina obtusata 1. body whirl slightly larger than aperture 2. flat top with minimal spire 3. smaller aperture and taller spire than littorina mariae

Question 33

Answer 33

* Rhodophyta * Florideophyceae * Gelidium 1. genus of thalloid red algae

Question 34

Answer 34

* Rhodophyta * Florideophyceae * Dumontia contorta 1. discoid base 2. tubular, cylindrical or compressed 3. irregulay branched 4. axis and branches tapered at both ends, irregulay swollen and often twisted

Question 35

Answer 35

* Mollusca * Gastropoda * Littorina mariae 1. apperture larger (hangs down) and body whirl even flatter than littorina obtusata (no step up)

Question 36

Answer 36

* Mollusca * Gastropoda * Gibbula cineraria 1. fine purple stripes 2. grey topped

Question 37

Answer 37

* Mollusca * Gasropoda * Gibbula umbilicalis 1. broad diagonal reddish / purple stripes 2. silver topped

Question 38

Answer 38

* Chlorohyta * Ulvophyceae * Cladophora rupestris 1. densely tufted 2. coarse feel 3. thallus is uniserate 4. cell in a single row

Question 39

Answer 39

* Chlorophyta * Ulvophyceae * Cladophora pellucida

Question 40

Answer 40

* Chlorophyta * Ulvophyceae * Ulva lactuca 1. broad crumpled frond 2. tough and translucent 3. disc like holdfast

Question 41

Answer 41

* Chlorophyta * Ulvophyceae * Ulva lactuca 1. gut weed

Question 42

Answer 42

* Chlorophyta * Ulvophyceae * Chaetomorpha linum 1. bright green 2. filaments are stiff and curled

Question 43

Answer 43

* Annelida * Polychaeta * Pomatoceros triqueter

Question 44

Answer 44

* Annelida * Polychaeta * Spirorbis

Question 45

Answer 45

* Cnidaria * Anthozoa * Actina equina

Question 46

Answer 46

* Bryazoa * Gymnolaemata * Membraniporidae membranacea 1. lact patches 2. smooth and round 3. rectangular zooids

Question 47

Answer 47

* Bryazoa * Gymnolaemata * Electra pilosa 1. half of the front of the zooid calcified 2. jagged

Question 48

Answer 48

* Ochrophyta * Pheophyceae * Saccorhiza polyschides

Question 49

Answer 49

* Echinodermata * Ophiuroidea * Ophiura ophiura

Question 50

Answer 50

* Porifera * Demospongiae * Halichondria panicea

Question 51

Answer 51

* Cnidaria * Anthozoa * Alcyonium digitatum

Question 52

Answer 52

* Rhodophyta * Florideophyceae * Corallina officinalis