Lamarck's Genera of Shells. 



261 



Fig. 



34. b. and 34. c. Erycina compla- 



nata, exterior and interior. 



35. Ungulina transversa, exterior 



and interior. 



36. Solenomya mediterranea, do. do. 



37. Amphidesma variegatum,do. do. 



38. Corbula nucleus, do. do. 



39. Pandora rostrata. a. interior of 



right valve. 6. ditto left. 



40. Saxicava rugosa, exterior and 



interior. 



41. Petricola striata, do. do. 



42. Venerupis perforans. a. inte- 



rior of right valve, b. ditto 

 left. 



43. Sanguinolaria rosea, exterior 



and interior. 



44. Psammobia ferroensis. a. inte- 



Fig. 



rior of left valve, b. ditto 

 right. 



45. Psammotea donacina, exterior 



and interior. 



46. Tellina radiata, do. do. 



47. Corbis fimbriata, valves united, 



shewing the relative position 

 of the umbones. a. exterior 

 of one valve, b. interior do. 



48. Lucina Jamaicensis. exterior 



and interior. 



49. Donax scortum. side view, 



shewing the lunula, a. exte- 

 rior of one valve, b. interior 

 ditto. 



50. Capsa Isevigata. exterior of one 



valve. a. interior of left 

 valve, b. ditto right valve. 



Plate 6. Vol. 14. 



Fig. Fig 



8.*. Magilus antiquus. 57. 



46.*. Tellinides timorensis. a. b. 



the two hinges. (Bowdich's 58. 

 Elements of Conchology. 59. 

 Fig. 36. a. b.) 



51. Crassina Danmoniensis. a. in- 60. 



terior of left valve, b. ditto 61. 

 of right do. 62. 



52. Cyclas rivicola. exterior and 



interior. 63. 



53. Cyrena cor. exterior and interior. 



54. Galathea radiata. a. b. interior 



of right and left valves. 61. 



55. Cyprina Islandica. exterior and 



interior. 65. 



56. Cytherea lusoria. exterior of one 66, 



valve, a. back view of the 67, 

 valves united, b. interior of 68. 

 right valve. 



Venus puerpera. exterior and 



interior. 

 Venericardia planicosta. 

 Cardium costatum. exterior and 



interior. 

 Cardita sulcata, do. do. 

 Cypricardia Guinaica. do. do. 

 Hiatella spinosa. a. left valve. 



b. right valve. 

 Isocardia cor. side view of the 



valves united, a. exterior of 



one valve, b. interior of do. 

 Cucullsea auriculifera. exterior 



and interior. 

 Area torUiosa. do. do. 

 Pectunculus glycimeris. do. do. 

 Nucula rostrata. 

 Trigonia pectinata. exterior of 



one valve. a. interior of 



right valve, b. ditto of left. 



Plate 2. Vol. 15, 



Fig. 



69. Unio sinuata. exterior and inte- 



rior. 



70. Hyria avicularis. do. do. 



71. Anodonta cygnea. do. do. 



72. Iridina ovata. 



73. Diceras arietinum. 



74. Chama lazarus. exterior of one 



valve, a. b. interior of each 

 valve. 



75. Ethoria elliptica. exterior and 



interior. 



76. Tridacna gigas. back view of the 



valves united, shewing the 



Fig. 



open lunula, a. b. exterior 

 and interior. 



77. Hippopusmaculatus. back view 



shewing the close lunula, a. b. 

 exterior and interior. 



78. Modiola papuana. exterior and 



interior. 



79. Mytilus Magellanicus. do. do. 



80. Pinna rudis. do. do. 



81. Crenatulamodiolaris. do. do. 



82. Perna ephippium. do. do. 



83. Malleus albus. do. do. 

 81. Avicula crocea. do. do. 



