INTRODUCTION. 
Echin. 3 
B. 
Geological :— 
i General .... 
• • 
Page 
46 
ii Cainozoic :— 
a. General 
47 
b. Pleistocene . 
47 
c. Pleiocene 
47 
d. Meiocene 
47 
e. Oligocene 
47 
f. Eocene 
48 
iii Mesozoic :— 
a. General 
• • 
48 
b. Cretaceous (1. Upper. 
2. Lower) 
• 
48 
c. Jurassic (1. Upper. 2. Middle. 3. 
Lower) 51 
d. Lias (including Rhaetic) 
• . 
• 
52 
e. Trias .... 
• 
• 
52 
iv Palaeozoic :— 
a. General 
53 
b. Permian 
53 
c. Permo-Carboniferous . 
53 
d. Upper Carboniferous . 
53 
e. Lower Carboniferous . 
53 
f. Devonian 
53 
g. Silurian 
54 
h. Ordovician . 
54 
k. Cambrian 
54 
1. Pre-Cambrian 
. (Vacant) 
Systematic. 
a. Echinoderma, general . 
54 
B. 
Holothurioidea .... 
55 
c. 
Echinoidea. 
56 
D. 
Asteroidea ..... 
77 
E. 
Opliiuroidea ..... 
80 
F. 
Crinoidea ..... 
82 
G. 
Cystidea and Edrioasteroidea 
87 
H. 
Blastoidea . 
88 
K. 
Incertge Sedis .... 
88 
INTRODUCTION. 
I. Titles. There are 307 numbered items in this list, gathered from 
the following years: 1872, 1; 1892, 2; 1893, 1; 1895, 2; 1896, 4; 1897, 3; 
1898, 3; 1899, 6; 1900, 7; 1901, 25; 1902, 251; 1903, 2. The last two 
are included as being essentially abstracts or reviews of papers published 
in 1902 or earlier. Some of the belated titles are due to certain periodicals 
becoming accessible to the Recorder in 1903 for the first time ; among 
these may specially be mentioned Bulletin de la Societe scientifique et 
medicale de VOuest, Proceedings of the Iowa Academy of Sciences , and 
Transactions of the Newbury District Field Club , all of which are now in 
the British Museum (Nat. Hist.) and have been searched through from 
