24a. 
25, 25a. 
27, 27a. 
28, 28a. 
30, 30a. 
31, 3la. 
PLATE XI. 
Trochus obsoletus, p. 63. 
— — magnified view. 
Monodonta Labadyei, p. 68. 
Monodonta imbricata, p. 67. 
— _— magnified view. 
Monodonta Lyelli, p. 67, front view. 
_ _— back view. 
— _— the shell magnified. 
Turbo Gomondei, p. 66. 
Monodonta formosa, p. 68. 
_ — magnified view. 
Delphinula (Crossostoma) discoideum, p. 73. 
== = — magnifed view. 
Delphinula (Crossostoma) heliciforme, p. 73. 
Turbo obtusus, var., p. 66. 
— _ magnified view. 
Turbo obtusus, p. 66. 
- -—— magnified view. 
Monodonta Labadyei, p. 68. 
Neritopsis sulcosa, p. 59. 
Neritopsis striata, p. 59, front view. 
- = back view. 
Nerita hemispheerica, p. 58, front view. 
— _— back view. 
Nerita cancellata, p. 56, front view. 
_— — back view. 
_— — a portion of the surface magnified. 
. Nerita hemispheerica, p. 58, a smooth variety. 
. Nerita rugosa, p. 56. 
. Nerita costulata, p. 57. 
— _— a portion magnified. 
. Nerita minuta, p. 58. 
. Neritopsis varicosa, p. 106, and Plate XIII, fig. 5. 
Delphinula (Crossostoma) Prattii, p. 77. 
—_ _ — an enlarged view. 
Natica (Euspira) Sharpei, p. 46. 
Natica (Euspira) canaliculata, p. 45. 
- = _ back view. 
Natica Stricklandi, p. 42. 
- _ back view. 
Phasianella tumidula, p. 76. 
Phasianella nuciformis, p. 75. 
Phasianella elegans, p. 74. 
Phasianella acutiuscula, p. 75, and Plate IX, fig. 2. 
Phasianella parvula, p. 75. 
_— - magnified view. 
Phasianella conica, p. 74. 
Phasianella Leymeriei, p. 74. 
_ _ a globose variety. 
