yi DESCRIPTIVE REMARKS. 
Kingdom—ANIMALIA, 
INVERTEBRATA. 
Sub-kingdom—PROTOZ OA. 
Class I. AmorpHozoA—Sponges. 
II. Ruizopopa—Foraminifera, Ke. 
III. Inrusor1A— Polygastria (Ehrenberg). 
Province—RaADIATA. 
Class I. Zoopnyta—Hyprozoa—Corallines (2) Oldhamia ; Graptolites. 
Il. “ ANTHOZOA, including the Lamelliferous or Stony Corals. 
Ill. EcurnopErmata—Crinoids, Star Fishes, Sea Urehins, &c. 
Sub-kingdom—MOLLUSCA. 
Class I. Ascrpiopa or Tunicata—Hetero-branchiata (Blainville.) 
Il. Potyzoa or BryozoA—Dictyonema ; Fenestella ; &c. 
Ill. Bracniopops—Pallio-branchiata (Blainv.) Lamp Shells. 
IV. Concnirera—Lamelli-branchiata (Blainy.), Ordinary bi- 
: valve Shells. 
V. GaAsrEropopA— Univalve Shells. Nucleobranchs, or He- 
teropoda, Bellerophon. 
VI. Preropopa— Theca ; Conularia. 
VII. CerpHaLopopa—WNautilus ; Ammonites. 
Province—ARTICULATA. 
Class I. ANNuULATA—Annelida—Serpula. (?) Histioderma, 
II. CrrripEDIA—Barnacles or Acorn Sheils. 
Ill. Crusracra—Crabs and Lobsters. Trilobites. 
IV. Insecta—ZJnsects. 
VERTEBRATA. 
Class I, Pisces—Fish. 
Il. Repritra—Reptiles. 
Ill. Aves—Birds. 
IV. MamMa.ia—Quadrupeds. 
Some general remarks upon the assemblage of Fossils which are 
found to occur in each Formation will perhaps add to the utility of the 
figures, as well as facilitate their study. 
Considering the groups of strata in the ascending order, we shall 
therefore commence with a short review of the Fossils of the Cambrian 
Formation, in which strata we find the earliest evidences (in the 
British Islands at least) of organic life. 
To show their position in geological time, and the order of succes- 
sion of the several strata, the following Table, adopted by the Geologi- 
cal Survey, is taken from the Catalogue of the Collection of Fossils in 
the Museum of Practical Geology (1865), and will no doubt be found 
useful for reference. 
