XXii 
54. distérta Say. 
19. Petricola 
55. pholadifor- 
mis Lam. 
56. dactylus Sow. 
20. Lutraria Lam. 
57. canaliculata Say. 
58. lineéta Say. 
21. Mactra Lam. 
59. similis Say. 
60. lateralis Say. 
61. oblongata Say. 
62. tellinoides Con. 
22. Amphidésma Lam. 
63. orbiculata Say. 
64. equalis Say. 
65. lépida Say. 
66. punctata Say. 
23. Mya Lin. 
67. arenaria Lin. 
24. Corbula Brug. 
68. contracta Say. 
25. Sdélen Lam. 
69. énsis Lin. 
70. viridis Say. 
26. Solecdirtus Blain, 
71. caribeus Lam. 
72. fragilis Pult. 
27. Phélas Lin. 
73. costata Lin. 
7A, oblongata Say. 
75. truncata Say. 
76. semicostata* Lea. 
Reproduction by buds as well as by eggs. 
Respire by internal branchiee ; 
FAUNA OF SOUTH CAROLINA. 
Gould. In Mass, f. 40 77. cuneiformis Say. 
28. 'Terédo Lin. 
78. palmilatus ? 
Say. Am. Con. pl. 60, f. 1/29. Chama Lin. 
Say. Am. Con. pl. 60, f. 2} 79. arcinélla* — Lin. 
30. Mytilus Lin. 
‘J. A. N.S. v. 2, p. 311 80. talipa Lam. 
Am. Con. pl. 9 81. plicatula Lam. 
82. cibitus Say. 
J. A. N.S. v..2, p. 309 83. doningens ae 
Gould. In. Mass. f. 34 84. lateralis Say. 
J. A. N.S. v. 2, p. 310 85. castanea Say. 
J.A.N.S. v. 6, pl. 11, £3) 86. lithéphaga Lin. 
87. caudigera Lam. 
JeAL INS: Ve 2,1 pia0l: 88. attenuata Desh. 
Aim. Con. pl. 28 89. leucophea- 
J. A. N.S. v. 5, p. 221 tus* Con. 
Jc A. NOS. ve 2, p. 308 
31. Pinna Lin. 
Sow. Gen. 90. muricata Lin. 
91. seminada Lam. 
Gould. In. Mass. f. 37 82. Avicula . Lam. 
92. atlantica Lam. 
Con. Mar. Con. pl. 5 33. Pécten Lam. 
Con. Mar. Con. pl. 5 93. dislocatus Say. 
34. Plicdtula Lam. 
Con. Mar. Con. pl. 4 94. cristata* Lam. 
Con. Mar. Con. pl. 4 35. Andémia Lin. 
95. ephippium Lin. 
Sow. Gen. 36. Ostrea Brug. 
J. A. N.S. v. 2, p. 320 96. virginiana List. 
Jc A. N.S: v2, p. 321 97. fundata Say. 
98. equéstris Say. 
2. SUBDIVISION. MOLLUSC OIDEA. 
IV. CLASS. 
of Ascidia exist on the cost. 
tentacula. No heart. 
TUNICATA. 
Vy. CLASS. BRYOZOARIA. 
Respire by external branchie, which form about the mouth a crown of ciliated and protractile 
J. AL N.S. v. 2, p. 322 
Lam. v. 6, p. 38 
Sow. Gen. f. 2 
Sow. Gen. 
under Modiola 
7A p: 40. 
. N.S. v. 2, p. 264 
/ALN.S.v. 2, p. 266 
Sow. Genera. 
> 
under Litho- 
domus. 
JOAGING Save Os ples UE 
f. 13 
Lam. v. 7, p. 64 
v. 7, p. 61 
Veit, Page 
Am. Con. pl. 56 
We 05 Pala 
Gen. 
Sow. 
Sow. Gen. f. 2 
_Am. Con. pl. 58 
Circulatory and nervous systems rudimentary. 
no tentacula about the mouth. One or more undetermined species 
* 
Several marine species are found, and there are no doubt several fluviatile species also, but none 
have been satisfactorily determined. 
IV, DIVISION, ZOOPHYTIC ANIMALS. 
In general no skeleton interior or exterior. 
point or axis than about a plane. 
Organs symmetrically placed, rather about a central 
Nervous system rudimentary or null. 
