INDEX 
Names of Authors are in capitals, thus. Klipstein 
Names of Geological formations or ages are in roman type with an initial Capital, thus . Trias. 
Names of Places likewise, thus.Veszprem. 
Terms, referred to as such, are in roman type, with a small initial, and between quote- 
marks, thus.«tubercle». 
Structures or subjects dealt with are in roman type with a small initial, thus.evolution. 
Names of Genera are in italics with an initial Capital, thus. Cidaris. 
Names of Species are indexed under the trivial name (in italics and never with an initial 
Capital) followed by the generic name, thus. buchi, Cidaris. 
The trivial names of species are also entered in an alphabetical list following the name 
of each genus with which they have been associated. There is no attempt to 
indicate which association is considered correct. 
Names of Subspecies, Varieties, and Mutations are dealt with in the same way, but are 
followed by the complete specific name, thus. poculiformis, Cidaris alata. 
The Arbitrary signs of distinction «, ß, y, are spelled out, and are followed by the specific 
or other name to which they refer, thus. alpha, Miocidaris sp. 
Fragments of which the species is indeterminable are indexed under the name of the genus 
to which they are referred, thus. Plegiocidaris sp. 
Under all entries of Systematic names, the number of the page on which the Genus, or 
Species, or Specimen, is ntore particularly described or discussed 
is printed in heavy-faced type, thus. scrobiculata, Cidaris, 183. 
«acetabulum» of radiole, 135. 
Acquate, Lombardy, 242. 
Acrosalenia, 225 : crinifera, 
parva. 
Acrosaleniidae, 100. 
Adinocrinus, 5. 
«adapical» imbrication, 64. 
— region», 60. 
admeio, Cidaris, 101, 102, 115. 
— Hemipedina, 115. 
Mesodiadema, 115. 
«adoral» imbrication, 64. 
— region», 60. 
«adradial crenellae». 27. 
— imbrication, 64. 
— sutures», 60; in Diadem- 
atidae, 103; in Diademoida, 
255 — 256 ; in Diademopsis, 
124; of Echinoidea, 247 ; in 
Hemipedina, 102; in Meso- 
diadema, 121; in Miocidaris, 
85, 92; in Triadocidaris, 69, 
73, 77. 
«adradial tra'ct» of ambulacrum, 
61, 62. 
aequituberculata, Diademopsis, 
108, 110, 111. 
Ägasmagas, 55. 
Agassiz, A., 60, 63, 64, 66, 129, 
130, 257, 258, 265. 
Agassiz, J. L. R., 170, 175, 178, 
188, 191, 195, 265, 270. 
Agricola, G., 5, 7, 265. 
Airaghi, C., 113, 115, 255, 265. 
alata, Cidaris, 138, 143, 170 , 
180, 190, 192, 194, 201, 219, 
220, 239, 245, 261, Pis. XI, 
XIV. 
[alata] poculiformis, Cidaris : 
vide poculiformis. <■ 
— subalata, Cidaris: vide sub- 
alata. 
— iypica, Cidaris: vide typica. 
alatus, Radiolus, 170. 
Alberti, F. von, 233, 265. 
Alderton Hill, 101. 
alpha. Diadematoid ambulacrum, 
125 , 255, PI. IX, ff. 214, 215. 
— var. of Isocrinus tyrolensis: 
vide tyrolensis. 
— Miocidaris sp. 80 , 238, 
PI. VI, ff. 150—152. 
— Triadocidaris sp., 76 , 238. 
«Also», 241. 
18 + 
