24 



1397 Liomesus canaliculatus Dall. 

 2031 Liomesus nassula 



1396 Liomesus Nux Dall. 



1398 Liomesus ooides Middendorf. 



2762 Liostraca variaus Sby. 



2763 Liotia acuticostata Cpr. 



875 Liotia fenestrata Carpenter. 

 3071 Liotia lui'ida 



876 Lithophagus attenuatus Deshayes. 

 328 Lithophagus plumula Hanley 



1428 Litorina aleutica Dall, Cal ac pr 4:271, t 1 f 3, 3a. 

 1609 Litorina (Tectarius) Galapagiensis 



1611 Litorina (Tectarius) atyphus 

 2296 Litorina conspersa Phil. 



1429 Litorina atkana Dall. 



2764 Littorina grandis Midd. 

 77 Litorina planaxis 



2748 Littorina pullata Cpr. 1864. 



877 Littorina rudis Donovan. 

 76 Litorina scutulata 



878 Littorina sitkana Philippi. 



879 Loligo stearnsii Hemphill. 

 552 Lophocardium annettse Dall. 

 92 Lottia gigantea 



89 Lucapina crenulata 



2749 Lucapinella callomarginata Cpr. 



2444 Lucina annulata Rve. 



2445 Lucina approximata Dall. 



880 Lucina bella Conrad. 



881 Lucina borealis Linne. 

 311 Lucina calif or nica Conr 

 2449 Lunatia Draconis 



2704 Lucina edentuloides Verrill. 



882 Lucina filosa Stimpson. 

 2097 Lucina sequizonata 

 310 Lucina nuttallii Conr 



883 Lucina tenuisculpta Carpenter. 

 182 Lunatia lewisii Gld 



1251 Lunatia pallida Broderip and Sowerby. 



291 Lutricola alta Conr 



105 Lyonsia Californica 



2275 Lyria bamesii Gray. 



1716 Lysince Humboldtiana 



3076 Lyonsia (Allogramma) Amabilis 



2750 Lyonsia inflata Conr. 



2751 Lyonsia nitida Conr. 



3077 Lyonsia pugetensis 



1549 Lyonsia (Entodesma) saxicola Baird. 



1575 Lysince fidelis Gray. 



1208 Lysino3 townsendiana Lea. 



365 Machaera patula Dixon 



884 Macoma calcarea Chemnitz. 



885 Macoma carlottensis Whiteaves. 



886 Macoma edentula Broderip. 



887 Macoma edulis Nuttall. 



888 Macoma expansa Carpenter. 

 368 Macoma inconspicua Broderip. 

 Ill Macoma indentata 



1177 Macoma inflatula Dall. 

 298 Macoma secta Conr. 



