INTRODUCTION, 
Echin. 3 
B. 
Geological : — 
i General t ; 
i . 
Page 
49 
ii Cainozoic : — 
a. General 
49 
b. Pleistocene . 
49 
c. Pleiocene . . i 
49 
d. Meiocene 
. 49 
e. Oligocene 
50 
f. Eocene 
. 50 
iii Mesozoic : — 
a. General 
50 
b. Cretaceous (1 . Upper. 
2. Lower) 
. 51 
c. Jurassic (1. Upper. 2. 
Middlo. 3 . 
Lower) 53 
d. Lias (including Rhaeti< 
3) . 
64 
e. Trias .... 
54 
iv Palaeozoic : — 
a. General 
(Vacant) 
b. Permian 
(Vacant) 
c. Permo-Carboniferous . 
(Vacant) 
d. Upper Carboniferous . 
. 55 
e. Lower Carboniferous . 
55 
f. Devonian 
• • 
; 55 
g. Silurian . 4 4 
• k 
56 
h. Ordovician . 
• • 
56 
k. Cambrian . 
56 
1. Pre-Cambrian 
(Vacant) 
Systematic. 
A. Echinoderma, general . 
56 
B. 
Holothurioidea .... 
. 56 
c. 
Echinoidea 
. 61 
D. 
Asteroidea 
77 
E. 
Ophiuroidea 
. 82 
F. 
Crinoidea ..... 
• • 
. 86 
G. 
Cystidoa and Edrioasteroidea , 
i ■ i ! ' 
i 
91 
H. 
Blastoidea 
K. 
Iticertce Sedis » . * . 
. * ;■ 
* 92 
INTRODUCTION. 
When official decree stopped the assistance which for thirteen years 
it has been my pride and pleasure to offer to my colleagues, I was for- 
tunate in persuading Miss Grant to take over the manuscript already 
prepared for the present issue and to complete the work with such 
supervision as I could give. She in turn has persuaded me to contribute 
this introduction and to insert within [ ], as usual, any remarks that 
might appear serviceable in the body of the Record. Consequently this, 
the last issue before the Zoological Record is amalgamated with the 
International Catalogue , preserves the style of its thirteen predecessors. 
I. Titles. The total 381 exceeds by 11 the number contained in the 
Record for 1900, when a special effort was made. Of these, however, 
36 have not been seen. This is due, not to lack of effort, but mainly 
to the fact that I handed over to the Recorder a list of over 50 titles, 
many of which I had been trying to see for several years. A few of these 
have now been seen ; others have been entirely excluded; 14, about which 
something definite is known, are placed in the ordinary list; while the 
remaining 22 form an appendix. Thus, it is hoped, these unseen works 
will not be entirely lost sight of, while at least those published after 1900 
may receive attention in the International Catalogue . 
