SYSTEMATIC INDEX. 
{Italics are used for Synonyms.) 
Plate Page 
aaptos {Ancorina), 
205 
abyssi (Cortieium), 
282 
abyssi (Pachastrella), . 
XI. - 
■ xxvii, xc, cxi, cxix 
104, no 
abyssi (Thrombus), 
282 
abyssorum (Craniella), . 
50 
acervus (Ecionema), 
'cxxx, cxxxvi, cxl 
.196, 198 
Aciculites, 
clvii, 347 
aculeata (Corallistes), . 
338 
asgogrophila (Esperia), . 
xlv 
aejophoba (Aplysilla), . 
428 
aeruginosa (Antbastra), . 
183 
aeruginosa {Stelletta), 
183 
affinis (Dorypleres), 
434 
afhnis {Hemiasterella), , 
434 
affinis (Rhaphidotheca), 
Ixxi 
agariciformis {Borvillia), 
95 
agariciformis {Stelletta), 
. 67, 95, 205 
agariciformis {Tethya), 
95 
agariciformis {Tisiphonia), . 
67, 95, 408, 409 
agariciformis { Wyvillc-Thom - 1 
sonia), . . . . J 
95 
agassizi (Characella), 
101 
Alectona, .... 
. . cxxvi 
Algol, .... 
r cxxxvi, cxxxvii 
cxli, cxlii, 200 
amphiaster (Discodermia), . 
331 
Amphibleptula, . 
clix, 351 
Amphius, .... 
cxlii, 177 
amygdaloides {Pachastrella), 
99, 101 
amygdaloides (Poecillastra), . 
99 
anancora (Pilochrota), . 
XIV. 
132 
anceps (Astrella), 
181 
anceps {Stelletta), . 
181 
Ancorina, .... 
annulata (Sphinctrella), 
f cxxxv, cxxxvii 
[cxxxix, 188 
100 
annulata {Stellettinopsis), 
206 
annulata {Tisiphonia), . 
91, 100 
annulatus (Asteropus ?), 
206 
Plate 
Page 
Anomocladidae, 
. . clix, 354 
anonymus (Samus), 
cxxxi, 57 
Anoplia, .... 
clvii, 319, 349 
antarctica ( Tethya), 
42 
antarctica (Tetilla), 
42 
Antares, .... 
274 
r xli, cvii, cxxxvi 
Anthastra, 
-! cxxxvii, cxxxviii 
1 138, 287, 389 
apiarium {Caminm), 
268 
apiarium (Isops ?), 
XLIII. 
Ixii, 268 
arabica {Oeodia), . 
262 
arabica ( Tethea), . 
42 
arabica (Tetilla), . 
42 
arabicum (Cydonium), . 
262 
archeri (Amphora) [Diatom], 
148 
arctica (Rinalda), . 
xci, xcii 
areolata (Geodia), . 
246 
areolata (Pachymatisma), 
244 
Asemophora, 
415 
aspera (Characella), 
XL. 
. cxxix, 92 
aspera (Discodermia), . 
327 
aspera {Stelletta), . 
193 
asterigera (Sclerochalina), 
412 
aster oides {Bacodiscula), 
327, 332 
Asteropus, 
cxii, cxlii, 205, 206 
Astrella, .... 
r cxxxvi, cxxxvii 
\ cxxxviii, 136 
Astrobolia, 
337 
Astropeplidae, 
416, 422 
Astropeplus, 
r xxvii, Ixxxvii, 416 
I 419, 422 
Astrophora, 
. cxiii, cxxvii, 59 
Astylospongia, . 
. . cxviii 
atropurpurea (Craniella), 
. exxiii, 50 
atropurpurea ( Tethya), 
50 
aurantium {Alcyonium), 
435 
auraviium {Donatia), . 
. cxxii, 435 
aurea (Darwinella), 
. . xlvii 
Aurora, .... 
f cxxxvi, cxxxvii 
Icxxxix, 187 
