3» 



III. — GENERAL DIVISION OF THE ANIMAL KINGDOM. 1? 



Class Y.—FISG'HIS— continued: 



Sub-Class II.— TELEOSTEI. 



Order III.— Acanthopterygii Perch, Mackerel. Mullet, &c, 



IV.— PharyngOgnathi Parrot-fishes, &c. 



v.— Anacanthini Cod, Beardie, Sole, &c. 



VI-— PhySOStomi Garfish, Salmon, Herring, &c. 



„ VII.— Lophobranchii Sea Horses, Pipe fishes. 



„ VIII.— Plectognathi Leather jackets, Toad fishes, &c. 



Sub-Class III.-CYCLOSTOMATA. 



J, IX.— Petromyzontidse Lampreys. 



Sub-Class IV.-LEPTOCARDII, 



ti X.— CirrOStomi Lancelets. 



The INVERTEBRATA-the second grand division of the 

 Animal Kingdom — include generally all those forms of animals 

 which do not possess a backbone. There is, however, such a 

 great variety in this division that they have been classifiied into 

 the following sub-kingdoms. 



Sub-Kingdom I.— MOLLUSOA. 



Class I -CEPHALOPODA. 



Sub-Class I-DIBRANCHIATA. 



Order 1. — Octopoda Octopus or Poulpe andArgonaut. 



,, 2. — Decapoda Squids and Cuttlefishes. 



Sub-Class II.-TETRABRANCHIATA 

 Order — Nautilidse Pearly Nautilus. 



Class II — PTEROPODA. 



Order 1. — Thecosomata Cavolina, Hyalea, &c. 



„ 2.— Gymnosomata Clio. 



Class III.-GASTROPODA. 



Subclass I.-PROSOBRANCHIATA. 



Order 1.— Pectinibranchiata Rock-snails, Whelks, Olives, 



Harp-shells, Cones, Strombs 

 or Wing shells, &c. 



„ 2. — Scutibranchiata Nerites, Top-shells, Ear-shells 



and Limpets. 



„ 3.— Polyplacophora Chitons. 



