CLASSIFICATION. 27 



ORDER 8. NATATORES, diving-birds, including the goose, swan, goosander, 

 merganser, duck, petrel, gull, flamingo, cereopsis, sea-swallow, alba- 

 tross, darter, gannet, frigate-bird, cormorant, pelican, diver, grebe, 

 puffin, auk, penguin, &c. 



C1<ISS III. KEPT ILIA, Reptiles : divided into four Orders, as follows : 



ORDER 1. CHELONIA, tortoises. 



ORDER 2. LORICATA, crocodiles and alligators. 



ORDER 3. SAURIA, lizards. 



ORDER 4. OPHIDIA, serpents. 



Class IV. BATRA€HIA, the frog kind : divided into five Orders, as follows : 



ORDER 1. ANURA, including the tree-frog, common frog, toad, Surinam toad, etc. 



ORDER 2. URODELA, including the salamander, triton, &c. 



ORDER 3. AMPHIPNEUSTA, including the syren, axolotl, proteus, etc. 



ORDER 4. APODA, including the coecilia. 



ORDER 5. LEPIDOTA, including the lepidosiren paradoxura. 



Class V. PISCES, Fishes : divided into five Orders, as follows : 



ORDER 1. SELACHIA, including the thornback, torpedo, ray, sting-ray, saw- 

 fish, and sharks, as the hammer-head, thrasher, dog-fish, sea-cat, &c. 



ORDER 2. GANOIDEA, including the sturgeon, bony pike, amia, beluga, &c. 



ORDER 3. TELEOSTIA, including several sub-orders and a great variety of 

 species, as the balistes, sun-fish, trunk-fish, sea-horse, fishing-frog, 

 blenny, sea-wolf, sucking-fish, climbing-perch, mullet, sword-fish, 

 pilot-fish, tunny, mackerel, John Doree, blepharis, cLnetodon, pa- 

 grus, perch, stickle-back, sea-snipe, bullhead, gurnard, wrasse, garfish, 

 flounder, turbot, sole, halibut, plaice, haddock, whiting, ling, cod, 

 roach, dace, chub, bleak, barbel, carp, pike, trout, salmon, shad, bass, 

 tautog, white-fish, sheep's-head, weak-fish, blue-fish, alewife, grayling, 

 char, smelt, pilchard, anchovy, sardine, sprat, herring, white-bait, 

 electric eel, common eel, and many others. 



ORDER 4. CYCLOSTOMATA, including the lampreys. 



ORDER 5. LEPTOCARDIA, including the amphioxus lauceolatus. 



Division II. MOLLUSCA: 



From the Latin, signifying a soft-shell nut, and including animals with soft bodies : comprised 

 in seven Classes and various Orders, as follows : 



Class 1. CEPHALOPODA : divided into two Orders : 



ORDER 1. DIBRANCHIATA, including the cuttle-fish or sepia, squid, poulpe, &c. 

 ORDER 2. TETRABRANCHIATA, including the nautilus. 



Class II. GASTEROPODA : divided into three Orders : 



ORDER 1. PULMONIFERA, including the slug and snails. 

 ORDER 2. BRANCHIFERA, including the cowry,- cypraea, scorpion-shell, peri- 

 , winkle, limpet, elephant's tooth, doris, seolis, umbrella-shell, bubble- 



shell, etc. 

 ORDER 3. HETEROPODA, including the sagitta, firola, carinana, Are. 



Class HI. PTEROPODA : divided into two Orders : 



ORDER 1. THECOSOMATA, including the hyalea, &c. 

 ORDER 2. GYMRTOSOMATA, including the clio australis, &c. 



