INTRODUCTION. 
Echin. 3 
B. 
Geological : — 
i General .... 
Pago 
. 51 
ii Cainozoic : — 
a. General 
51 
b. Pleistocene . 
51 
c. Pleiocene 
51 
d. Meiocene 
51 
e. Oligocene 
52 
f. Eocene 
52 
iii Mesozoic : — 
a. General 
53 
b. Cretaceous ( 1 . Upper. 
2. Lower) . 
53 
c. Jurassic (1. Upper. 2. 
Middle. 3. Lower) 55 
d. Lias (including Rhaetic) . . 
56 
e. Trias . . . . 
56 
iv Palaeozoic i — 
a. General 
(Vacant) 
b. Permian 
57 
c. Permo-Carboniferous . 
(Vacant) 
d. Upper Carboniferous . 
57 
e. Lower Carboniferous . 
57 
f. Devonian 
57 
g. Silurian . . . 
58 
h. Ordovician . 
58 
k. Cambrian . . . 
• • # 
(Vacant) 
1. Pre-Cambrian 
(Vacant) 
Systematic. 
A. Echinoderma, general . 
59 
B. 
Holothurioidea .... 
59 
c. 
Echinoidea 
64 
D. 
Asteroidea * 
91 
E. 
Ophiuroidea 
94 
F. 
Crinoidea . . . . 
95 
G . 
Cystidea and Edrioasteroidea 
101 
H . 
Blastoidea ..... 
. 102 
K . 
Incertae Sedis .... 
. 105 
INTRODUCTION. 
I. Titles. The total 341 is thus made up: 1891, 1 : 1893, 1 ; 1895, 2 ; 
1897, 1; 1898, 1; 1899, 2; 1900, 6; 1901, 12; 1902, 26; 1903, 288; 
1904, 1. The actual number for 1903 thus exceeds by 21 the highest 
number previously attained in the Record for any one year, and this is 
far from being due to exceptional labour by the Recorder. At least three 
of the papers assigned to 1903 were, it is believed, not published techni- 
cally till 1904; but since a few favoured recipients of authors’ copies 
quoted or reviewed them in 1903, they have been included for convenience. 
On the other hand a few works for which the date 1903 appears to be 
commonly claimed are held over till 1904, the year of their actual appear- 
ance ; of these the Echinoderm volume in Delage & Hdrouard’s Traits de 
Zoologie concrete is a notable example. While it is doubtless the case 
that many papers herein recorded contain but incidental references to 
Echinoderms, still the proportion of important works is large, and if this 
