Chap. I.
GEOLOGY.
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Rodentia; sixth, the Edentata, which have three tribes, viz. the Sloths, the ordinaryArmadillo and the Ant-eater, and the Monotremata; seventh, the Pachydermata, which issubdivided into Proboscidiana, Pachyderms, and Solipedes; eighth, the Ruminants ; andninth, the Cetacia
The Birds or Oviparous Vertebrata are rarely found in a fossil state.
Reptiles are in great abundance and variety, and are divided into eight orders, viz.the Dinosauria, or land saurians; the Enaliosaurians , or those of the sea ; Crocodilia ; La-certilia, or lizards ; Pterosauria, or flying saurians ; Chelonia or tortoises, &c. ; Ophidia orserpents; and Batrachia or frogs.
Fishes are divided into Ganoidians, Placoidians, Ctenoidians, and Cycloidians.
The Ixvertebrata are divided into four classes: the first is the Mollusca , which is sub-divided into seven orders; the Cephalopoda, the Pteropoda, the Gasteropoda , the Conchi-fera, the Brachiopoda, the Tunicata , and the Cirrhopoda.
The second class is the Articulata, which comprises five orders, viz. the Crustaceans ,the Arachnidans, the Insecta, the Myriapoda , and the Annelidans.
The third class, or Radiata, is divided into two groups ; one of which has received theterm Nematoneura, which is divided into five orders, viz. the Echinodennata, the Epizoa,the Rotifera, the Bryozoa , and the Cadelmintha.
The second group of Radiata is called Acrita, and comprises five orders, viz. theSterelmintha, the Acalepha', the Polygastrica, the Polyps, and the Sponges.
Lamarck has made another arrangement, dividing the Mollusca into two classes, Con-chifera and Mollusca , and the whole into families.
The 1st family in his classification is the Tubieolicla, among which is the Asper-gillum, Clavagella, Teredo, &c.
The 2nd family is the Pholadidce, of which is the Pholas, Gastrochama, Sec.
3rd. — Solenidce, which contains the Solen, Panopa'a, Sc c.
4th.— Mt/idce ; the Mva, Anatina.
5th. — Mactridfc; Mactra, Crassatella, Erycina, Lutraria, Ungulina, Solemva,Amphidesma.
6th_ Corbulida:; Corbula, Pandora.
7th .—Lithophagida ; Saxicava, Petricola, Venerupis.
8th. — Nymphidce ; Sanguinolaria, Psammobia, Tellina, Corbis, Lucina, Donax,Capsa, Crassina.
9th- Conchidcc, which are fluviatile and marine; among the first are Cyclas,
Cyrena, Galathca; among the latter Cyprina, Cytherea, Venus, Venericardia.10th- Cardiidae; Cardium, Cardita, Isocardia, &c.
11th .—ArcidcB ,• Cuculhea, Area, Pectunculus, Nucula, Trigonia, and Castalia.12th. — NaiidcB; Unio, Ilyria, Anodon, and Iridina.
13th- Chamidce ; Dicras, Cliama, Etheria.
14th. — Tridacnidce ; Tridacna, Hippopus.
1 5th- Mytilidee ; Modiola, Mytilus, Pinna.
16th. — Mulleidce; Crenatula, Perna, Malleus, Avicula.
17th_ Pectinidte; Pedum, Lima, Plagiostoma, Pecten, Plicatula, Spondylus,
Podopsis.
18th. — Ostreidce ; Grypha^a, Ostrea, Vulsella, Placuna, Anomia.
19th. — Rudista ; Spha?rulites, Radiolites, Calceola, Birostrites, Discina. Crania.
20th_ Brachiopoda; Orbicula, Terebratula, Lingula, Sec.
The second class are the Mollusca ,
The first order of which are the Pteropoda; Hyala?a, Clio, Cleodora, Limacina, Cym-bulia, Pneumodermon.
2nd Order.— Gasteropoda.
21st Family. — Tritonidee; Glaucus, Eolis, Tritonia, Scylla ^a, Tethys, Doris.22nd .—Phyllidida ; Phyllidida, Chitonellus, Chiton, Patella.
23rd- Semi-phyUidid<E; Pleurobranchus, Umbrella.
24th_ CalyptrceideB; Parmophorus, Emarginula, Fissurella, Pileopsis, Calyp-
traa, Crepidula, Ancylus.
2dth- BullicLc; Bulla, Aplysia, Dolabelhu
3rd Order,— Trachilopoda.
26th Family. — Helicidce ; Helix, Bulimus, Achatina.
27th. — IAmnasidtz; Planorbis, Physa, Limna?a.
28th- Melanida ; Melania, Melanopsis, Pirena.
29th_ Peristomidce ; Valvata, Paludina, Ampullariaj.
30th .—Neritidec ; Navicella, Neretina, Nerita, Natica.
31st- Janthinida ; Janthina.
32nd .—Macrostomida ; Sigaretus, Stomatella, Haliotis.
33rd- Plicacidce ,■ Tornatella, Pyramidella.