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PALAEONTOLOGY OF NEW-YORK. 
GENERA AND SPECIES. 
3 Orthoceras rectiannulatum, Hall 
4 — subarcuatum, “ 
5 — tenuiseptum, “ 
6 — (Ormoceras) mcniliforme, “ 
7 — multicameratum, Conrad 
8 — recticameratum, Hall 
9 — fusiforme, “ 
10 — avcuoliraturn, 
11 — teretiforme, “ 
12 — textile, “ 
13 — bilineatum, “ 
14 — — var. a. 
15 — clathratum, 
16 — vertebrate, 
17 — anellum, Conrad 
18 — undulostriatum, Hall 
19 — (sp. indet.) . 
20 — latiannulatum, Hall 
21 — junceum, “ 
22 — amplicameratum, “ 
23 — strigatum, “ 
24 — laqueatum, var. a. “ 
25 — (sp. indet.) 
26 — coralliferum, “ 
27 — lamellosum, “ 
1 Ormoceras tenuifilum, “ 
2 — — var. distans, ‘ 
3 — ? gracile, “ 
4 — crebriseptum, “ 
1 Endoceras subcentrale, “ 
2 — longissimum, “ 
3 — multitubulatum, “ 
4 — gemelliparum, “ 
5 — annulatum, “ 
6 — proteiforme, 
var. tenuistriatum, Hall 
7 — var. tenuitextum, 
8 — var. lineolatum, 
9 — var. strangulatiun 
10 — var. elongatum, 
11 — arctiventrum. Hall 
12 — angusticameratum 
13 — magniventrum, 
14 — — var. 
15 — anproximatum, 
16 — duplicatum, 
17 — distans, 
18 — proteiforme? 
1 Cameroceras trentonense, Conrad 
1 Gonioceras anceps, Hall 
