List of Illustrations 



15 



Hunchback Scallop 

 Variegated Scalloji 

 Qiiin or Queen 

 Seven-rayed Scallop 

 Tiger Scallop . 

 Mottled Scallop, shell 



and animal . 

 Gaping File-shell . 

 Heart File-shell 

 Fragile File-shell . 

 Gaping File-shell . 

 File-shell in its nest 

 Gaping File - shell, in- 

 terior .... 



Hj:art - Cockle and 

 Fresh-water Cockle 



Furrowed Astarte . 



Furrowed Astarte, in- 

 terior .... 



Flat Astarte . 



Iceland Cyprina 



Interior of Cj^prina 



Heart- Cockle . 



Beaks of Heart- Cockle . 



Interior of Heart-Cockle 



Northern Lucina . 



Globose Kelly-shell, sus- 

 pended by byssus 



Interior of Globose Kelly- 

 shell .... 



Minute Kelly-shell 



Scaly Coin-shell 



Shining Coin-shell and 

 enlarged hinge . 



Convex Coin-shell . 



Turton's Weasel-eye, 

 open and closed . 



Hinge-teeth, Splucrliini . 



Horny Orb- shell 



Nut Orb shell 



• Lake Orb-shell 



2 



