100 | BRAN RI 
21:1016 Genus Lyonsia Turton, 1822. 
21:1020 Lyonsia californica Conrad, 1837. 105. 
21:1022 Lyonsia (californica?) nesiotes Dall, 1915. 
21:1023 Lyonsia (Entodesura) inflatum Conrad, 1837. (2750 
790). 
2751 #£lLyonsia nitida Conr. 
360 Entodesma saxicola Baird 
21:1024 Lyonsia (Entodesma) scammoni Dall, 1871. (287), 
21:1053 Genus Macoma Leach, 1819 
888 Macoma expansa Carpenter. 
368 Macoma inconspicua Broderip. 
111 Macoma indentata 
21:1428 Macoma indentata tenuirostris Dall, 
1177 Macoma inflatula Dall. 
367 Macoma nasuta Conrad 
889 Macoma obtusa Carpenter. 
298 Macoma secta Conr. 
366 Macoma yoldiformis Carpenter 
2231 Macrochasma crenulata 
2450 Macromphalina Californica 
157 Macron lividus A Ad 
$91 Mactra californica Conrad. 
1625 Mactra ecatilliformis Dall. 
1627 Mactra dolabriformis Conrad, 1867, 
289 Mactra falcata Gld 
1626 Mactra Hemphillii Dall. 
1636 Mactra (Mactrotoma) nasuta Gid. 1851. 
288 Mactra planulata Conr 
21:1082 Malletia californica Dall. 
21:1081 Malletia faba Dall, 1887. 
178 Mangilia angulata Cpr 
21:1065 Mangilia (Cythara) branneri Arnold, 1903. 
21:1066 Mangilia (Clathurella) conradiana Gabb. San Pedro, Cal 
21:1431 Mangilia fuscoligata Cpr. 
21:1432 Mangilia hamata Cpr. 
899 Mangilia merita Gould. 
21:1433 Mangilia nitens Cpr. 
900 Mangilia sculpturata Dall. 
901 Mangilia striosa C. B. Adams. 
21:1434 Mangilia subdiaphana Cpr. 
397 Mangilia variegata Carpenter. 
904 Margarita lirulata Carpenter. 
424 Marginella jewetti Carpenter. 
21:0017 Marginella pyriformis Cpr. 
164 Marginella regularis Cpr 
165 Marginella subtrigona Cpr 
21:1078 Marginella varia Sby., is californica. 
21:1084 Martesia intercallata Cpr., 1855. 276. Shell-boring Pid- 
dock. 
Martesia xylophaga C. B. Adams, 1852. 
21:1096 Megatebennus bimaculatus Dall, is Clipidella b. 
21:1097 Megerlia jieffreysi Dall, is Laqueus j. 
97 Melampus olivaceus 
21:0507 Genus Melanella Bowditch, 1822. 
21:0521 Melanella californica Bartisch. Catalina Island, Cal. 
21:0549 Melanella (Balcis) catalinensis. Catalina Channel. 
21:0523 Melanella compacta (Cpr. 1864 sub Eulima). 
