246 PLATES. 



PLATE XI Fig. 35. Solarium hybridum. 36. Paludina vivipara. 

 37. Baccintim laevissimum. 38. Voluta Japonica. 



PLATE XII Fig. 39. Terebra crenulata. 40. Harpa ventricosa. 

 41. Cassis decussata. 42. Turbinella pyrum. 43. Fusus retro- 

 versus. 



PLATE XIII Fig. 44 Fasciolaria traperium. 45. Pyrula per- 

 versa. 46. Fusus servatus. 47. Murex haustellum. 48. Scis- 

 surella crispata, natural size and magnified. 



PLATE XIV Fig. 49. Terebratula cranium, a cluster, and inside 

 of each valve. 51. Unio Pictorum. 52. Crossatella sulcata. 

 53. Cyclas cornea. 



PLATE XV. Fig. 50. Diceras arictina. 54. Lingula anatina. 



PLATE XVI. Fig. 55. Anatina hispidula. 56. Teredo navalis. 

 57. Clavellina lepadiformis. 



PLATE XVII Fig. 58. Ciona intestinalis. 59. Ascidia. New 

 species of LISTER, natural size, and the right side magnified. 



PLATE XVIII Fig. 60. Botryllus polycyclus. 61. Boltenia ovi- 

 fera. 62. Cynthia momus. 63. Phallusia nigra. 64. Salpa 

 cristata. 



EDINBURGH : Printed by Balfour & Jack. 



