TAB. VIII. 



Fig. 



1. Modipla modiolus, J9<7y(? 57. 



a. outside view of var. vulgaris. 



h. inside ditto. 



c. inside ditto, elongated var. 



2. Modiola barbata, /.;. 58. 



3. Modiola scricea, /;. Gl. 



4. Modiola phascolina, p. 59. 



c. inside view of young specimen, showing a crenulated margin. 



5. Modiola discors, p. 60. 



6. Modiola costulata, ^;. 60. 



a. outside view of elongated var. 



b. inside ditto var. Petagnie. 



7. Modiola marmorata, /j. 62. 



S. Modiola rliombea, /;. 64. 



Outside view of two varieties. 



9. Mytilus edulis, /;. 52. 



a. var. clegans. 



b. ,, antiquorum. 



c. „ incurvatus. 



d. „ saxatilis. 



e. „ alscformis. 



10. Mytilus liesperianus,^^. 55. 

 11 Pinna pectinata,7^ 50. 



17ie lines itidicaie the size of the specimens. 



