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[A r o£e.-—The numbers of pages on which merely incidental references occur 
are printed in italics.] 
<y? 
Acanthaspis, 128. 
armata, 129. &CJ A 
Acanthodes, 2. 
affinis, 14. 
antiquus, 13. ^ 
bronni, 4, 5. T ‘ 
concinnuSjTO. 
coriaceus, 12. 
gracilis, 5. 
lopatini, 14. 
micracanthus, 551. 
mitchelli, 13, i^, 551. 
nitidus, d, 9. 
parvulus, 14. 
peachi, 12. 
pusillus, 11. 
pygmaius, 10. 
rouvillei, 7. 
sulcatus, 10, 551. 
wardi, 2, 5, 8, 15. 
Acaxthodid^e, 2. 
Acanthodii, 1. 
Acanthodopsis, 3, 15. 
egertoni, 15. 
wardi, 15. 
Acanthcessus, 2. 
bronni, 5. 
Acantholepis, 128. 
pustulosa, 129. 
Acentrophorus, 486. 
Acipenser bituminosus, 
477. 
AciPENSERimE, 424. 
Acondylacanthus, 
93, 102, 107. 
sequicostatus, 109. 
attenuatus, 107. 
colei, 108. 
distans, 108. 
gracilis, 109. 
Acondylacanthus 
\ ( cont .). 
jenkinsoni, 109. 
junceus, 109. 
mudgianus, 110. 
nuperus, 110. 
occidentalis, 109. 
rectus, 109. 
remotus, 109. 
tenuistriatus ( Roman- 
oivs Icy), 110. 
tenuistriatus, Davis , 
108. 
tuberculatus, 110. 
xiphias, 110. 
Acrolepis, 490, 494 , 
501. 
acutirostris, 509. 
africana, 509. 
angusta, 502. 
aspera, 502, 503. 
digitata, 508. 
drummondi, 509. 
dunkeri, 502. 
exsculpta, 505. 
gigantea, 502. 
hopkinsi, 506. 
hortonensis, 508. 
intermedia, 505. 
kirkbyi, 504. xry/ci/ y Mv. 
macroderma, 505. $\°f 
murchisoni, 509. 
ornata, 505. 
ortholepis, 509. 
rankinei, 506. 
reticulata, 509. 
rhombifera, 505. 
sedgwicki, 501. 
semigranulosa, 507. 
wilsoni, 507. 
/■- , -- . y /?*rruM. 
M V. 
$2? - 
Actinistia, 394. 
Actinolepis, 203. 
tuberculata, 205. 
Actinophorus, 486. 
clarki, 487. 
Actixopterygii, 423. 
Aganacanthus, 93, 
145. 
striatulus, 146. ; 
Agassichthys, 303. 
manni, 304. 
sullivanti, 304. 
Amacanthus, 106. 
gibbosus, 106. 
Amblypterus, 437. 
agassizi, 513. 
anconosechmodus, 434. 
angustus, 447. 
arcuatus, 444. 
beaumonti, 443. 
blainvillei, 445. / , , , 
caudatus, 44077 - 
costatus, 4477 ^ 
decipiens, 510, 512. 
decor us, 444. 
dimidiatus, 440. 
eupterygius, 492. _ 
eurypterygius, 492^ 
gelberti, 447. 
gibbus, 440. 
gigas, 494. _ op, 
lateralis, 438. 
latimanus, 513. 
latus, 437. ^ 
lepidurus, 440. 
macropterus, 491. r 
minutus, 441. 
nanus, 447. 
