Taxonomy Camp - subtidal species

Cancer irroratus

• smooth up until their anterior, then they have ridges

Cancer borealis

• spiky almost all the way around

• rounder/bulkier than cancer irroratus

Carcinus maenas

• invasive to New England

• greenish in color

Hemigrapsus sanguineus

• about the size of a silver dollar

• invasive to new england

Eriocheir sinensis

• claws that look like mittens

• invasive to new england

• can be up to 12 inches in diameter

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

Panopeus herbstii

• they like muddier, more structured areas

Libinia emarginata

• like a rock with legs

• round

  

Portly spider crab

Hyas coarctatus

• distinct, narrowed tip

Pagurus acadianus

• orange legs

• one really long arm/claw

Homarus americanus

u know em…u love em!

Palaemon elegans

Mysis sp.

Limulus polyphemus

Idoeta balthica

• no specialized legs

Gammaris oceanic

• specialized legs

Caprella mutica

• invasive to new england

Semibalanus balanoides

Balanus balanus

• less common and smaller than semibalanus balnoides

tonicella marmorea

• very distinct 8 plates

Ischnochiton ruber

Ischnochiton Albus

Crepidula fornicata

• stack on top of each other

• they look like a slipper :)

• distinctly curved

Crepidula plana

• more flat than crepidula fornicata

Euspira heros

• common in sandy areas

Testudinalia testudinalis

• pointed shell

Littorina littorea

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

Littorina obtusata

• super smooth

Littorina saxatilis

• tips look like the frosting on a cupcake

  

Nucella lapillus

• groove at the bottom

Neptunea decemocstata

Busycon carica

• quite large

Calliostoma occidentale

nudibranchs

Anomia sp.

Mytilus edulis

Guekensia demissa

• distinct ribbing

• found in spartina (the marsh)

Modiolus modiolus

• has hairs

• more round and larger than blue mussels

Crassostrea virginica

Ostrea edulis

• invasive to new england

Placopecten magellanicus

PLMA

Buccinum undatum

BUUN

asterias forbesi

KEEN: ARPL

Notable for the orange magiporite (orange dot)

Forbes’ seas

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

Aulactinia stella

Dead man’s fingers

KEEN: ALDI

Gersemia rubiformis

sea strawberry

KEEN: GERU

Astrangia poculata

Star coral

KEEN: ASDA

Syanarachnactis 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 feline

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

Ascidia callosa

tunicate

KEEN: ASCA

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

Diploma 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

bryozoa

large colonies made up of single organisms, have things that reach out to feed (similar to barnacles)

Membranipora membranacea

sea lace bryozoan or lacy crust bryozoan

often found growing on kelp

KEEN: MEME

schizoporella unicornis

sea mat bryozoan

KEEN: SCUN

Electra pilosa

hairy sea mat