Invertebrates - Master List

INVERTEBRATES Scientific name		Common name
Phylum Arthropoda		A “superphylum” containing two classes whose members, respectively, have the greatest number of species in the sea, the Crustacea, and on land, the Insecta. Almost all crustaceans are encased in a hard shell. You are apt to meet many of them along the shore- horseshoe crab, barnacles, beachhoppers, isopods, shrimp, true crabs and more.
TRUE CRABS
Callinectes sapidus		Blue crab
Callinectes similis		Gulf crab
Libinia dubia		Spider crab
Menippe mercenaria		Stone crab
Panopeus herbstii		Common mud crab
Portunus gibbesii		Iridescent swimming crab
Stenorhycus seticornis		Arrow crab
SHRIMP
Alpheus heterochaelis		Common snapping shrimp
Hippolyte pleurocanthus		Broken back shrimp
Lysmata wurdemanni		Peppermint shrimp
Palaemonetes pugio		Grass shrimp
Penaeus duorarum		Pink shrimp
Tozeuma carolinense		Arrow shrimp
HERMIT CRABS
Pagurus spp.		Hermit crab
Clibanarius vittatus		Green striped hermit crab
Petrochiaus drogenes		Red hermit crab

CRUSTACEA
Belanus Amphitrite		Striped barnacle

ISOPODS
Lironeca ovalis		Gill louse (juvenile)
AMPHIPODS
Gammarid amphipods		No common name
ARACHNIDA		You may wonder how two spiders made it into this list. Both are orb weavers and can create webs as much as three feet in diameter held by guide wires another two to three feet in length. Both can construct their nets across a mangrove “tunnel” where the unwary kayaker may come upon it and in panic wind up in the water. (The best protection against this is to travel in groups and let someone else go first).
Gasteracantha cancriformis		Crab-like spiny orb weaver
Nephila clavipes		Golden-silk spider
Phylum Cnidaria (formerly Coelenterata)		The first “true animals” because they have distinct multicellular tissues and organs They have unique stinging cells called nematocysts). Adult stages are either polyps or medusa. They are organized into three classes; Hydrozoa, where each adult generation is alternatively a polyp or a medusa, Scyphozoa whose adults are medusa (jellies), and Anthozoa whose adults are polyps (anemone, coral). Avoid the word “jellyfish”; it’s a misnomer.
Class SCYPHOZOA
Aurelia aurita		Moon jellies
Cassiopeia spp.		Upside-down jellies
Chrysaora quinquecirrha		Sea nettle

Phylum Echinodermata		“Spiny-skinned” animals with elaborate hydraulic systems that provide transportation , and in some, remarkable power to open prey. They include the sea stars, brittle stars, sand dollars, sea biscuits, and sea cucumbers.
SEA CUCUMBERS
Euapta lappa		Beaded sea cucumber
Isostichopus badionotus		Three-rowed sea cucumber (ventral view)
Isostichopus badionotus		Three-rowed sea cucumber (dorsal view)
Holothuria arenicola		Burrowing sea cucumber
SEA URCHINS
Lytechinus variegatus		Short-spined sea urchin
		Aristotle's lantern
Melllita quinquiesperforta		Five-holed keyhole urchin
SEA STARS
Ophiothrix angulata		Angular Brittle Star
Ecgubaster sentos		(No common name)

Phylum Mollusca		Aside from the relatively brainless members of this phylum- chitons, bivalves, gastropods, and tusk shells- it contains the brightest of the invertebrates, the octopii and squid.
BIVALVES
Perna viridis		Green Mussel
Argopecten irradians		Bay Scallop
GASTROPODS
Bursatella leachii pleii		Ragged sea hare
Busycon contrarium		Lightning whelk
Fasciolara huntaria		Banded tulip snail
Fasciolara		Tulip Snail (Egg Case)
Haminosa solitaria		Solitary Paper Bubble
Melongena corona		Crown conch
Pleuroploca gigantes		Horse conch
Polinices duplicatus		Sand Collar (Moon Snail Egg Case)