INDEX 
TO GENERA AND SPECIES DESCRIBED OR NOTICED IN PALAEON¬ 
TOLOGY OF NEW YORK, VOLUME V, PART I. 
[ The heavy-faced numbers indicate a description of a genus or species. ] 
[The numerals in parenthesis, (xii,) (xiii,) (xiv,) have reference to the Synopsis of Genera in the first 
part of this volume.] 
page. 
PAGE. 
Actinodesma cruciforme , (Conrad) Hall, 
. (xiii) 153 
Athyris, McCoy, . . . . 
28 
A. 
erectum, (Conrad) Hall, . 
153 
Atrypa hystrix, .... 
291 
Actinopteria, Hall, . . (xii) 
xvii, 36, 107, 129 
Avicula, Klein, . ... . 
36, 
175 
A. 
auriculata, Hall, . 
131 
A. 
angustirostra, Conrad, 
115 
A. 
Boydi, ( Conrad) Hall, 95, 113, 114, 117, 118, 160, 168 
A. 
bella, Conrad, .... 
35 
A. 
deenssata, Hall, . 
111,118, 160 
A. 
Boydii, Conrad, 
113, 114, 115, 
116 
A. 
delta, Hall, . . . . 
. 131, 123 
A. 
eancellata, Phillips, . 
18 
A. 
Doris, Hall, 
109 
A. 
Chemungensis, Conrad, . 
98 
A. 
epsilon, Hall, . . . . 
. 133, 128 
A. 
Chemungensis, Vanuxem, 
172 
A. 
eta, Hall, .... 
134, 126 
A. 
circuius. Hall, 
lix, 
lx 
A. 
eximia, Hall, . . . . 
. 107, 109 
A. 
circulus, Shumard, 
lx 
A. 
iota, Hall, .... 
137 
A. 
Cooperensis, Shumard, 
lix, 
lx 
A. 
Kappa, Hall, . . . . 
. 138 
A. 
cruciformis, Conrad, . 
. 153, 
156 
A. 
Leander, Hall, 
109 
A. 
deenssata, Hall, 
111 
A. 
muricata, Hall, 
. 108 
A. 
erecta, Conrad, 
. 153, 
156 
A. 
perobliqua, ( Conrad) Hall, 
116 
A. 
flabella, Conrad, • 
93 
A. 
perstrialis, Hall, 
118, 120, 121 
A. 
fragilis , Hall, . . . . 
434 
A. 
pusilla, Hall, 
117 
A. 
laivigata, de Koninck, 
lix 
A. 
subdecussata, Hall, 
110, 113, 114 
A. 
Icevis, Hall, . . . . 
158 
A. 
tenuistriata, Hall, . 
119, 130 
A 
longispina, Hall, . 
179 
A. 
theta, Hall, . . . . 
. 135, 127 
A. 
muricata. Hall, 
108 
A. 
zeta, Hall, .... 
133, 125 
A. 
orbiculata. Hall, . 
42 
Allocardium alternatum, Hall, 
expl. PI. 24 
A 
parilis , Conrad, 
• 1, 3, 
4 
Allorisma, xviii, xxx, xxxi, xxxiii, xxxiv, xliii, xliv, li 
A. 
pecteniformis, Conrad, . 
1, 4, 
98 
lii, 406 
A. 
perobliqua, Conrad, . 
113, 114, 116, 
117 
A. 
Hannibalensis, Shumard, 
. 37S, 381, 382 
A. 
pleuroptera, Conrad, 
. 113, 114; 
115 
A. 
( Cercomyopsis ) pleuropistha. Meek 
. 471 
A. 
protexta, Conrad, 
. 183, 
184 
A. 
( Sedgwickial ) pleuropistha, Meek, 
471 
A 
quadrula, Conrad, 
• 113, 114, 
115 
Ambonychia, Hall, 
. 252 
A. 
reticulata, Hisinger, . 
114 
Amnigenia, Hall , .... 
lvi, 516 
A. ? 
signata, Hall, 
29 
A. 
Catskillensis, Vanuxem, 
. lvi, 516 
A. 
speciosa, Hall, 
. XXXV, 
426 
Amussium, Klein, .... 
lviii, lix 
A. 
spinigera, Conrad, 
177, 
180 
A. 
aurarium, 
. lviii 
A. 
tricostata, Vanuxem, 
48 
Anomia, L., . 
54 
A. 
tuberculata, Conrad, 
. expl. Pi. 
15 
Area rostrata, Chemn., 
. xvii 
A. 
tumida, de Koninck, . 
lix 
Astarte subtextilis, Hall, . 
. E xxxii, 385 
Aviculopecten, McCoy, (xit) lix, 1, 
31, 45, 74, 90, 
248 
