CONTENTS. 
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Sub-Class EDRIOPHTHALMATA; or SESSILE-EYED CRTJRT- 
ACEANS 472 
Order AMPHIPODA; or AMPHIPODOUS CRUST- 
ACEANS: Jumpers — Orchestridae 472 
Sand-Screws— Gammaridae, Corophidae 473 
Parasitic Shrimps — Phronimadae. 474 
Caddis- and Fresh- Water Shrimp (These belong to the 
just mentioned families Corophidae, resp. Gammaridae) 475 
Order LAEMODIPODA; or THROAT-FOOTED 
CRUSTACEANS: Skeleton-Screw — Caprellidae. 476 
Whale-Louse — Qyamidae 477 
Order ISOPOD A; or EQUAL-FOOTED CRUSTA- 
CEANS: Arcturus — Idoteidae 477 
Gribble — Asellidae 478 
Great Sea-Slater — Oniscidae. — ’Woodlouse — Porcel- 
lionidae. — Poll-Woodlouse — Armadillidae 479 
Order or Sub-Class ENTOMOSTRACA; or ENTOMOS- 
TRACANS: Gill -Footed Entomostracans — 
Branchiopodidae 480 
Order CLADOCERA; BRANCH-HORNS: Water-Flea, 
and Moina —Baphniadae 481 
Chydorus — Lynceidae , Polyphemidae 482 
Order OSTRACODA: Cypris —Cypridae. — Cythere — Gy- 
theridae. — Cypridina — Cypridinadae '. . 483 
Order COPEPODA; or OAR-FOOTED ENTOMOSTRA- 
CA NS: Cyclops — Cyclopidae. — Cetochilus — Ceto- 
chilidae . 484 
Legion Poecilopoda; or Various-Footed Entomostra- 
cans 485 
Order SIPHONOSTOMA; or TUB-MOUTHED ENTO- 
MOSTRACANS: Argulus — Argulidae . — C aligns 
— Caligidae .’ 485 
Tribe Pachycepha, comprising Entomostracans with broad, 
shield-shaped heads: Nicothoe, and other Fish- 
Parasites — Ergasilidae 485 
Order LERNEADA; or SUCKING FISH-PARASITES. 486 
Tribe Anchorastomaceae; or Anchor Fish-Parasites: 
Chondracanthus, Lernaeodiseus, Jacculina, etc.— 
Gliondracanthidae 486 
Tribe Anchoracarpaceae; Anchor-Parasites upon Carps, 
etc.: Perch-Sucker — Lernaeopodadae. — Anchor- 
ella — Anchor elladae. — Shark-Sucker — Penelladae. . 486 
Carp Sucker — Lernaeoceradae 487 
Order PYCNOGONIDES, comprising odd forms of Crusta- 
ceans. — Order XIPHOSURA; or SWORD- 
TAILED CRUSTACEANS 487 
Order CIRRIPEDIA; or BARNACLES: 488 
Goose Mussel — Lepadidae 489 
Acorn Barnacle — Balanidae 491 
CLASS ARACHNIDAE, 
comprising Spiders, Scorpions and Mites 493 
Order ARANEIDA; or TRUE SPIDERS 493 
Tribe Octonoculina; or Eight-Eyed Arachida: Crab- 
Spider, Mygale, and Trap-Door Spider — Myga- 
lidae 494 
Wolf-Spiders — Lycosidae 497 
Hunting Spiders — Salticidae 499 
Crab-Spiders — Thomisidae 501 
Cell-Spiders — Drassidae 504 
Tube-Weaving Spiders — Ciniflonidae 506 
Argelena, Tegenaria, Caelotes, Theridion, Liny- 
phia, Tetragnatha — Agelenidae . — Garden-Spider, 
and Varieties — Epeiridae 509 
Tribe Binoculina; or Two-Eyed Arachnida (no PS ) 511 
Tribe Senoculina; or Six-Eyed Arachnida 511 
Order PSEUDOSCORPIONES; or FALSE SCORPIONS 512 
Order PEDIPALPI; or TRUE SCORPIONS: Phrynus, 
Phrynidae 514 
Rock-Scorpion — Scorpionidcie 515 
Order ACARINA; or MITES: Harvest-Bug — Gamasidae 
— Hippopotamus-Tick — Ixodidae 516 
Flour-Mite — Acaridae 517 
Hog- and Dog -Tick — Pediculidae. — Deer- and 
Horse-Tick — Philopteridae 518 
Lug- Worms — Nereidae 530 
Eunice — Euniceae 534 
Cirrhatulus — Ariciae ’ * 532 
Sea-Mouse — AphrodUidae ” ' ’ 533 
Chaetopterus — Chactopteridae. — Earth - Worm — 
Lumbricidae 534 
Order SUCTORIA; or SUCKERS ! ! ! 535 
Sub-Class ENTOZOA ; or INTERNAL WORMS. — Order 
CAELELMINTHA. — Tribe Nematoidea: As- 
caris, Guinea Worm, Tricocephalus, Stongylus — 
Strong ylididae 533 
Order STERELMINTHA: Tape- and Ray-Worm— Ces- 
toideae 539 
Tri chine— Trichotrachelidae 540 
CLASS RADIATA; orECHINODER- 
MATA. 541 
Sub-Class DITREM AT A . — Order HOLOTHUROIDEA: 
Sipunculus — Sipunculidae 541 
Priapulus — Priapulidae. — Spoon-Worm — Thalasse- 
madae 542 
Order - HOLOTHUROIDEA: Sea Cucumbers — Psolidae . . , 542 
Pentacte — Pentactidae 543 
Synapta — Synaptadae 544 
Order EC HI NOIDEA: Sea-Urchins — Gicaridae 544 
Heart-Urchins — Spatangidae 546 
Cake-Urchin, etc . — Clypeasteridae 547 
Sub-Class HYPOSTOMATA .— Order ASTEROIDE A ; or 
STAR-FISHES: 549 
Asterias, etc . — Asteriadae 551 
Brittle Stars — Ophiuridae 552 
Shetland Argus — Eurydlina 553 
Order CRINOIDEA: Feather Star, and 553 
Medusa’s Head 554 
CLASS ACALEPHA; 
or Nettles, or Jelly-Fishes, or Hydroids 556 
Order SIPHONOPHORA; or SIPHON-BEARING MOL- 
LUSKS. — Present Classification of Jelly-Fishes: 557 
Sallee Man — Velelladae 559 
Portuguese Man-o’-War — Physaliadae 560 
Dfphyes — Liphijidae 561 
Order CTENOPHORA; or COMB-BEARERS: Cydippe— 
Gallianiridae. 562 
Venus’ Girdle — Ber'oidae 563 
Order DISCOPHORA; or DISC-BEARERS. — Tribe Gym- 
nophthalmata; or Naked-Eyed Medusa: Sarsia 
— Sarsiadae. — Eudora, and Aequorea— Aequoreadae 564 
Tribe Steganopiithalmata; or Coyered-Eyed Medusae: — 
Chrysaora, Rhizostoma — Iihizostomadae 566 
CLASS ZOOPHYTES; OR ANIMAL 
PLANTS. 568 
Order ACTINOIDA; or RADICATED ZOOPHYTES.— 
Sub-Order Actinaria: Pink Anemones — Luder- 
nariadae 568 
Green Anemone — Antheadae. — Pearlet Anemone, 
Pufflets, and Vestlets — Hya.nlhid.ae. — Plumose 
Anemone, and Widow — Sagartiadae 569 
Warty Anemone — Bunodidae 570 
Actinia, and Crambactis — Actiniadae 571 
Fungia — Fungidae. — Cup-Corals — Caryophylleadae.. 572 
Tree-Corals — Oculinidae. — Brain-Coral (Astraea) — 
Astraeaceae 573 
True Coral — Corticata 574 
Order ALCYONOIDA, comprising Gorgonias, Sea-Fans, 
Sea-Whips, etc.: 574 
Gorgonia — Gorgoniadae 575 
Sea Pen — Pennatuladae. — Sea-Tiger — Alcyoniidae . . 576 
Order HYDROIDA: Tubulariadae 576 
Sertulariadae. — Bell-Zoophytes — Campanulariadae . . 577 
The Coral Reefs of Florida 578 
CLASS MYRIAPOD A. 520 
Order CHILOPODA; Tribe Schizotarsia: Cermatia— 
Cermatiidae 520 
Tribe Holotarsia: Lithobius — Lithobiidae 521 
Centipedes — Scolopendridae 522 
Arthronomalus, Gonibregmatus — Geophilidae 523 
Order CHILOGNATA; or DIPLOPODS.— Tribe Penta- 
zonia: Zephronia, Glomeris — Glomeridae 524 
Tribe Monozonia: Polydesmidae and Polyxenidae. — Tribe 
Bizonia: Julidae . . . . . 525 
CLASS ANNUL ATA OR ANNELIDA; 
it includes the Earth-Worms, the Leech, the in- 
testinal Worms and other Worm-like Creatures. 527 
Order SETIGERA; or BRISTLE-BEARERS: Serpula, 
Sabella, Terebella, and Shell-Binder — Amphi- 
tritae 527 
CLASS ROTIFERA; OR WHEEL 
ANIMALCULES. 58i 
CLASS RHIZOPODA; OR ROOT- 
FOOTED PROTOZOANS. 583 
Sub-Class PORAMINIFERA 583 
Sub- Class POLYCYSTINA 584 
CLASS INFUSORIA; OR MICRO- 
SCOPIC ANIMALS: 585 
Vorticella — Peritricha 586 
Stentor — Heterotricha 587 
CLASS PORIFERA; OR SPONGES: 587 
Present Classification of Porifera - 591 
Von. HI. 
