ANTICOSTI ISLAND FAUNAS. 
9 
The fauna is one of the largest of any of the island’s forma- 
tions and nearly every species is represented by numerous 
individuals, although their vertical ranges are generally not 
extensive. Near the top occurs the first coral reef of the An- 
ticosti section, but it is found only in the southern outcrops. 
It is about ten feet thick and formed almost wholly of Paleo- 
favosites , Lyellia, and Holy sites. On the present wave cut reef the 
coral masses rise as small mounds and in the cliffs the reef ap- 
pears as a structureless mass with the superjacent beds over- 
arching it, giving rise to an appearance of folding. Also near 
the top, but below the coral reef, is the second Beatrieia zone 
and here they are equally as numerous as in the Charleton zone. 
The total fauna consists of one hundred and forty-two species 
of which thirty-five originate in the English Head formation 
and twenty-three in the Charleton. Fifty-eight species are 
confined to the formation and one hundred and seven species — 
nearly eighty per cent of the fauna — become extinct therein. 
The species are : — 
1 
2 
3 
4 
5 
6 
7 
8 
9 
10 
11 
12 
13 
14 
15 
16 
17 
18 
19 
20 
21 
22 
Cyclocrimtes halli 
Ischadites ? insularis 
Hindia fibrosa 
Rauffella cf . filosa 
Beatrieia nodulosa 
B. undulata 
Calapoecia canadense 
Clathrodictyon vesiculosum 
Columnaria alveolata 
Dictyonema n. sp. (doubtful 
as to its hav- 
ing been col- 
lected here) 
Favosites forbesi 
Halysites catenulatus 
Lyellia affinis 
L. exigua 
L. _ speciosa 
Mastigograptus cf. simplex 
Paleofavosites aspera 
P. aspera n. var. 
Protarea tenuis 
P. vetusta 
Streptelasma select um 
Strombodes diffluens (doubt- 
ful as to its 
having been 
collected 
here) 
23 Zaphrentis affinis 
24 Z. n. sp. 
25 Cornulites richmondensis 
26 Allonema botellus 
27 Atactoporella n. sp. 
28 Ceramopora niagarensis n. 
var. 
29 Chasmatopora angulata 
30 Corynotrypa dissimilis 
31 Cyphotrypa bulbosa 
32 C. polygona 
33 Dianulites n. sp. 
34 Glauconema strigosa 
35 Hailopora elegantula n. 
var. 
36 H. magnipora 
37 Helopora lineopora 
38 Lichinalia n. sp. 
39 Lioclema varioporum 
40 Nematopora Kneata 
41 Nicholsonella parvula 
42 Pachydictya crassa 
43 Phsenopora ensiformis 
44 P. exceilens 
45 Ptilodictya gladiola 
46 Stomotopora siluriana 
47 S. arachnoidea 
48 Atrypa marginalia 
49 Atrypina n. sp. 
