267 
No. 
N. S. 
Wales. 
Tas- 
mania. 
Queens- 
land. 
Europe. 
47 
Notomya? sec;?.r</br»u's, F. McCoy 
48 
Notomya ? clavata, F. McCoy ... 
... 
49 
Orthonota? compressa, J. Morris 
. . . 
50 
Orthonota? costata, J. Morris .,. 
51 
Mceonia valida, J. D. Dana 
... 
52 
,, axinia, J. D. Dana 
« . • • • • 
* 
53 
Mceonia? carinata^ J. D. Dana... 
• . • 
54 
Mceonia fraqilis, J. D. Dana 
... • • • 
* 
55 
,, ruqiformis, .T. D. Dana 
* 
. . . 
50 
,, ellip)tica, J. D. Dana ... 
... 
... 
* 
. • . 
... 
57 
,, yrandis, J. D. Dana 
Mceonia ? recta, 3 .~D. Dana 
... ... 
* 
58 
. . • 
59 
Tellinomya {Nucula) ahrupta, J. D. Dana 
... 
... 
• •• 
60 
,, ,, concinna, J. D. Dana 
... ... 
* 
... 
61 
,, ,, qlendonensis, J. D. Dana 
* 
... 
62 
Pinna? {iJardium) ferox, J. D. Dana 
... > . . 
63 
ModioJa crassissima, F. McCoy 
... 
* 
. . . 
64 
Aviciilopecten squanixili ferns, J. Morris 
# 
65 
„ J. D. Dana 
66 
,, tenuicoUis, .T. D. Dana ... 
* 
67 
,, niifis, J. D. Dana 

. . . 
08 
,, imhricatus, F. Etheridge 
• . . 
* 
09 
,, (Streptorynciins') Davidsoni, 
R. Etheridge 
* 
• •• 
70 
Avicula Volc/ensis ? E. de Verneuil ... 
* 
• . . 
71 
Theca lanceolata, J. Morris 
« • . • . • 
... 
... 
72 
Conularia? F. McCoy 
... ... 
• . • 
73 
Pleurotomaria nuda, J. D. Dana 
... ... 
* 
74 
,, Strzeleckiana, J. Morris 
* 
• ♦ • 
75 
,, carinata, J. Sowerby 
* 
* 
76 
SelJerophon decussatns, Fleming 
* 
* 
77 
Eiiomphalns depressus, J. D. Dana 
* 
78 
„ (Platyschisma) rofundatus, .T. 
Mon is ... 
* 
79 
Naticopsis ? liarpceformis, R. Etheridge, 
* 
80 
Bairdia affinis, J. Morris 
* 
81 
„ curta, F. McCoy 
* 
82 
Gytliere impressa,P 
... 
83 
Urosthenes australis, J. D. Dana 
... 
... 
Total 
73 
5 
8 
7 
Number of those in the preceding list 
176 
9 
12 
74 
CxUAND Total 
249 
14 
20 
18 
Of these, one hundred and one, or two-fifths to a small fraction, are 
found exclusively in New South Wales, and as yet are represented in no other 
country. It is remarkable that a few of these species belong to genera 
unknown in Europe, e.g., Tribracliiocrhms, Clarlda, Eurtjdesma, Aphanaia, 
and JJrosthenes. 
By a glance at the figures accompanying my work, it will he easily 
observed that several species have reached an extraordinary development, 
