Taxonomy Camp - subtidal species

Cancer irroratus

• smooth up until their anterior, then they have ridges

Atlantic rock crab

Cancer borealis

• spiky almost all the way around

• rounder/bulkier than cancer irroratus

Jonah crab

Carcinus maenas

• invasive to New England

• greenish in color

European green crab

Hemigrapsus sanguineus

• about the size of a silver dollar

• invasive to new england

asian shore crab

Eriocheir sinensis

• claws that look like mittens

• invasive to new england

• can be up to 12 inches in diameter

Chinese mitten crab

Callinectes sapidus

• have swimming legs

• blue-ish appendages

• feisty … fast and can reach entire body w claws

blue crab

Ovalipes ocellatus

• has swimming legs

• more common in sandy areas

ocellated lady crab

Panopeus herbstii

• they like muddier, more structured areas

Atlantic mud crab

Libinia emarginata

• like a rock with legs

• round

  

Portly spider crab

Hyas coarctatus

• distinct, narrowed tip

toad crab

Pagurus acadianus

• orange legs

acadian hermit crab

pagurus longicarpus

• one really long arm/claw

long-waisted hermit crab

Homarus americanus

u know em…u love em!

american lobster

Palaemon elegans

rockpool shrimp

Mysis sp.

Limulus polyphemus

horsehsoe crab

Idoeta balthica

• no specialized legs

baltic isopod

Gammaris oceanic

• specialized legs

Caprella mutica

• invasive to new england

skeleton shrimp

Semibalanus balanoides

acorn barnacles

Balanus balanus

• less common and smaller than semibalanus balnoides

rough barnacle

tonicella marmorea

• very distinct 8 plates

mottled chiton

Ischnochiton ruber

red chiton

Ischnochiton Albus

white chiton

Crepidula fornicata

• stack on top of each other

• they look like a slipper :)

• distinctly curved

slipper snail

Crepidula plana

• more flat than crepidula fornicata

flat slippersnail

Euspira heros

• common in sandy areas

northern moonsnail

Testudinalia testudinalis

• pointed shell

tortoise limpet

Littorina littorea

• have a point, but very smooth up to the point

common periwinkle

Littorina obtusata

• super smooth

flat periwinkle

Littorina saxatilis

• tips look like the frosting on a cupcake

  

rough periwinkle

Nucella lapillus

• groove at the bottom

dog whelk

Neptunea decemocstata

New England neptune

Busycon carica

• quite large

knobbed whelk

Calliostoma occidentale

boreal topsail

nudibranchs

Anomia sp.

Mytilus edulis

blue mussel

Guekensia demissa

• distinct ribbing

• found in spartina (the marsh)

Atlantic ribbed mussel

Modiolus modiolus

• has hairs

• more round and larger than blue mussels

northern horse mussel

Crassostrea virginica

eastern oyster

Ostrea edulis

• invasive to new england

European flat oyster

Placopecten magellanicus

KEEN: PLMA

Atlantic sea scallop

Buccinum undatum

KEEN: BUUN

wavy whelk

asterias forbesi

KEEN: ARPL

Notable for the orange magiporite (orange dot)

Forbes’ Seastar

Asterias Reubens

white magiporite

KEEN: ASRU

common Seastar

Henricia sanguinolenta

blood sea star

skinnier and smoother than Asterias stars

KEEN: HESA

Crossaster papposus

spiny sunstar

KEEN: CRPA

Solaster endeca

smooth sunstar

KEENL SOEN

Ophiopholis aculeata

daisy brittlestar

KEEN: OPAC

Strongylocentrotus droebachiensis

green sea urchin

KEENL STDR

Arabica punctulata

Atlantic purple sea urchin

KEEN: ARPL

Cucumaria frondosa

orange footed cucumber

KEEN: CUFR

Psolus fabricii

Orange footed cucumber

KEEN: PSFA

Enchinarachinus parma

Common sand dollar

KEEN: ECPA

Obelia geniculata

knotted thread hydroid

KEEN: OBSP

Abietinaria abietina

Sea fir

one main branch

KEEN: ABAB

Ectopleura sp.

Pink hearted hydroid

KEEN: ECSP

Sertularia sp.

Sea fir hydroid

this sea fir has finer branching than other sea fir

KEEN: SESP

Haliclystus salpinx

Trumpet stalked jellyfish

KEEN: HASP

jelly attached to a hard substrate

Alcyonium digitatum

Dead man’s fingers

KEEN: ALDI

Gersemia rubiformis

sea strawberry

KEEN: GERU

Astrangia poculata

Star coral

KEEN: ASDA

Cerianthus lloydii

Northern cerianthid

KEEN: CEBO

Aulactinia stella

Silver spotted anemone

Edwardsiella lineata

tiny white anemone

KEEN: FALI

Diadumene lineata

orange striped green anemone

KEEN: DILI

Urticina felina

Dahlia anemone

KEEN: URFE

large! orange! red!

Metridium senile

frilled anemone

KEEN: MESE

Cyanea capillata

Lion’s mane jellyfish

stings! watch out!

Aurelia aurita

Moon jellyfish

some sting a little bit

Pleurobrachia pileus

sea gooseberry

Styela clava

Club tunicate (sea squirt)

KEEN: STCL

Molgula manhattensis

Sea grape

KEEN: MOMA

Molgula citrina

(darker orange) sea grape

KEEN: MOCI

distinct number of lobes around siphon

Boltenia echinata

Cactus sea squirt

KEEN: BOEC

Boltenia ovifera

Stalked sea peach

KEEN: BOEC

Halocynthia pyriformis

sea peach

KEEN: HAPY

Ascidiella aspersa

dirty sea squirt

KEEN: ASAS

Ciona intestinalis

vase tunicate

KEEN: CIIN

Ciona savingyi

Transparent sea squirt

KEEN: CISA

Alpidium pallidum

White-flaked tunicate

KEEN: APPA

Dendrodoa carnea

blood drop sea squirt

KEEN: DECA

small, pink

Botrylloides violaceus

orange sheath tunicate

KEEN: BOVI

invasive to new england

Botryllus schlosseri

golden star tunicate

KEEN: BOSC

Didemnum albidium

White crust tunicate

KEEN: DIAB

Didemnum vexillum

sea vomit

KEEN: DIVE

Diplosoma listerianum

(transparent) sea vomit

KEEN: DIP

salpidae

barrel shaped tunicate, salps

Halichondria panicea

breadcrumb sponge

KEEN: HAPA

Cliona celata

boring sponge

KEEN: CLSP

bores into whatever substrate it is on (like a bivalve shell, you can see holes in the shell from this sponge)

Hymedesmia sp.

common sponge

KEEN: HYSP

Haliclona oculata

finger sponge

KEEN: HAOC

Isodictya palmata

Palmate sponge

KEEN: ISPA

smaller than finger sponge, further spread apart, flatter pieces

alitta virens

clam worm

Membranipora membranacea

sea lace bryozoan or lacy crust bryozoan

often found growing on kelp

KEEN: MEME

schizoporella unicornis

sea mat bryozoan

KEEN: SCUN

Crisularia turrita

spiral tufted bryozoan

Tricellaria inopinata

Tufty-buff bryozoan

KEEN: TRIN

crunchy arborescent

Bugula neritina

common bryozoan

red

KEEN: BUNE