648 



Fig. 



148. C. Hebraea, 100. 



149. — ornata, 104. 



150. — liieroglyphica, 105. 

 151-154. — castrensis, 103. 



Plate CXXXV. 



155-157. • 

 158,159.' 

 160-163. 



163. 



164. 

 165,166. 



167. 



168. 



169. 

 170,171. 

 173,174. 



tigrina, 107. 

 fastigiata, 106. 

 lentiginosa, 109. 



■ elegans, 113. 



• calypiga, 112. 



• Arabica, 108. 



• spleudens, 115. 



■ Arabica, var., 108. 



■ subeUiptica, 111. 



- abbreviata, 110. 



- elliptica, 114, 



Plate CXXXVI. 



Fig. 



175. C. piperita, 51. 



176. — Philippinarum, 52. 



177. — multistriata, 56. 



178. — acuminata, 75*. 



179. — indecora, 78. 

 180,18]. — ManUlse, 77. 

 182, 183. — simplex, 54. 



184. — modesta, 55. 

 185,186. — fluctuata, 79. 



187. — albocincta, 83. 



188. — Belcheri, 80. 



189. — angulifera, 81. 



190. — pellucida, 93. 



191. — Tellinoides, 76. 



192. ~ bullata, 96. 

 193-196. — florida, 53. 

 197-199. — Venetiana, 97. 

 200, 201. — limatula, 98. 



MONOGRAPH OF THE GENUS 



CIRCE. 



Fam. Yeneridse. 



Char. Gen. Testa sequivalva, insequilatera ; umbonibus compla- 

 natis striis vel costellis divaricatim rugatis; lunula cordiformi, 

 impressa, distincta ; ligamento in aream foveolatam sub marginem 

 dorsalem instructo ; cardine lato, dentibus cardinalibus divergen- 

 tibus, quorum mediano striate, et dente laterali uno antico in 

 utraque valva posito ; impressionibus muscularibus duabus, late- 

 ralibus ; impressione pallii Integra. 



