246 PLATES. 
Pirate XI.—Fig. 35. Solarium hybridum. 36. Paludina vivipara. 
37. Baccinum levissimum. 38. Voluta Japonica. 
Pirate XII.—Fig. 39. Terebra crenulata. 40. Harpa ventricosa. 
41. Cassis decussata. 42. Turbinella pyrum. 43. Fusus retro- 
versus. 
Piate XIII.—Fig. 44.—Fasciolaria traperium. 45. Pyrula per- 
versa. 46 Fusus servatus. 47. Murex haustellum. 48. Scis- 
surella crispata, natural size and magnified. 
Pirate XI V.—Fig. 49. Terebratula cranium, a cluster, and inside 
of each valve. 51. Unio Pictorum. 52. Crossatella sulcata. 
53. Cyclas cornea. 
Pirate X V.—Fig. 50. Diceras arictina. 54. Lingula anatina. 
Pirate X VI.—Fig. 55. Anatina hispidula. 56. Teredo navalis. 
57. Clavellina lepadiformis. 
Pirate X VII.—Fig. 58. Ciona intestinalis. 59. Ascidia. New 
species of LisTER, natural size, and the right side magnified. 
Pirate XVIII.—Fig. 60. Botryllus polycyclus. 61. Boltenia ovi- 
fera. 62. Cynthia momus. 63. Phallusia nigra, 64. Salpa 
cristata. 
EDINBURGH: Printed by Balfour & Jack. 
