Mollusks 7 A 



SPECIES OBTAINED AT EACH STATION WEST OF THE MACKENZIE RIVER. 



STATION 206-c. 



Grantley harbour, port Clarence, in 2-3 fathoms muddy bottom, near 



Teller, Alaska. 



Leda intermedia Sars. 

 Mytilus edulis L. 



Macoma inconspicua Brod". & Sby. 

 Cardium calif orniense Deshayes. 

 Cylichna nucleola Reeve. 

 Utriculus semen Reeve. 

 Chrysodomus liratus Martyn (young). 

 Lacuna divaricata Fabr. 

 Natica clausa Brod. & Sby. 

 Amauropsis purpurea Ball. 

 Gastropod eggs. 



STATION 20d. 

 Grantley" harbour, port Clarence, near Teller, Alaska. Beach. 



Leda intermedia Sars. 

 Mytilus edulis L. 

 Tellina (Peronidia) lutea Gray. 

 Macoma inconspicua Brod. & Sby. 

 Macoma incongrua von Martens. 

 Macoma balthica L. (young). 

 Cardium calif orniense Deshayes. 

 Serripes gronlandicus Gmelin. 

 Saxicava arctica L. 

 My a intermedia Ball. 

 Cyrtodaria kurriana Bunker. 

 Admete middendorffiana Ball. 

 Chrysodomus solutus Herrman (fragm.). 

 Littorina grandis Midd. 

 Natica clausa Brod. & Sby. 

 Amauropsis purpurea Ball. 



STATION 200. 



Port Clarence, Bering strait, Alaska, 2-3 fathoms, sandy mud. 



Mytilus edulis L., also young, on floating kelp, sta 20/i. 



Tellina (Peronidia) lutea Gray. 



Macoma inconspicua Brod. & Sby. 



Cardium calif orniense Beshayes. 



Spisula poly ny ma (Stm.) var. alaskana Ball. 



Coryphella 1 cf. salmonacea Couthouy; and ovicapsules. 



Philine cf. sinuata Stm. 



Littorina grandis Midd. 



Chrysodomus solutus Herrman 



Chrysodomus saturus Martyn. 



Lacuna divaricata Fabr. (Young); also on floating kelp, 20/i. 



Natica clausa Brod. & Sby., and nidamental capsules. 



'Greyish brown in colour, the gill filaments white-tipped. 



