INDEX TO RADIATA. 



ECHINODERMA-SEA-NETTLES-ZOOPHYTA— PROTOZOA— POPJFERA. 



Class I 



Order 



Family 



Okper 

 Family 



-ECHINODERMA or Spiny Skos 

 (Echinodermata), 



I., Echinoidea (Sea-eggs or Sea-urchins), 



1, Ecliinid^e {True tSea-eggs)^ 



2, Cidaridee {the Diadems'), 



3, Scutellidnj (The Cake-urchins'), 



4, (JaleritidaB, 



6, Echinolampasidre, 

 6, Spatangidse, {The Heart-urchins), 

 II., Asteroidea (Star-fishes), . 



1, Asteriidse {T'r:ie Sea-stars), 



2, Astropectenidie, . . 



3, Pentacerotidoe, 



Order 



Family, 

 Genus, 



Order 



Order 



III 



AsterinidK ((he Birds-foot Stars), 

 Ophiuridic {lAzard-taikd Star-fshe/), 

 Tlie True Lizard-tails {Ophiura), 

 Tlie Gorgon-heads (Astrophyton), 

 The Common Medusa's Head {Astrophy- 

 ton Arborescens), 

 Crinoidea (Feather-stars), • 



Pentacrinitida?, . . 



Pentacrinus, . . • 



The Pentacrinus caput-medusas, 

 Comatula tjke Feather-star), , 

 IV., Holuthuroidea {Sea-cuciimbers^, 



Holothuria nigra {the Nigjer or Cotton- 

 spinning Trepang), . , 

 v., Sipunculoidea (Siphon-worms), 



Pag 3 



301 



392 

 392 

 393 

 393 

 393 

 393 

 393 

 393 

 394 

 S94 

 394 

 394 

 394 

 395 

 395 

 395 

 39f 

 395 

 395 

 395 

 395 

 395 

 395 



390 

 S9G 



Class II.— The SEA-NETTLES or Acalephs 



(Acaleph.e;), 39G 



Order I , rulmograda or Discophora, 



" II , Ciliograda or Ctenophora, 



*' III., Cirrhigrada, 



'* IV., Physograaa, . . 



307 

 397 

 398 

 398 



Class IIL- 



ZOOPHYTA OR Polypi (Zoopiiytes 



OR Poi.ypsJ, 398 



Sub-class 

 Order 



n 



Family, 



Genus, 

 Family, 



Genus, 



Order 

 Family, 



Family, 



Sub-cl^js 

 Order 



L, Anthozoa, . . . ,398 



I., Anthozoa Hydroida (ITi/drnid Foh/ps), . 398 

 II., Anthozoa Asteroida {Asteroid Pul///tSi's), 399 

 Comularia, .... 400 

 GorgoniidiB (Gorgonins), . , 400 



Tubiporida; (Organ Corah), , , 400 



Coralliida; (the Calcareous Corals), . 400 

 Corallium, .... 400 



Hvalonemida^ (the Glass-rope Coi-als), . 400 

 Pennatulida; (Sea-pens), . ,400 



Pennatula, . . . .400 



Virgularia, .... 400 

 Anthozoa Helianthoida {Zoanthoid Polypes), 400 

 Actiniidie (Sea-anemones), . . 401 



Coral/ipliora (Stony Corals), , .401 



JIadreporitidse, . . . . 401 



Milleporida;, . . . .401 



Polyzoa or Bryozoa (Molluscan Zoophytes), 402 

 Infimdibulata, . . . 402 



Hippocrepia, , > , 402 



III 



Order 



Cuss IV.— PROTOZOA, 



I., Infusoria (Tnfusory Animalcules), 

 II., Rhizopoda or Foraminifera, 



Class V.— PORIFERA (the Sponges), 



The Homy Sponges (Cornea), 

 Genus, Spongia, 



The Siliceous Sponges (Silicea), 

 The Calcareous Sponges (Calcarea), 



403 



40,9 



404 



404 



405 

 405 

 405 

 405 



