Morphological reflection 335 



Morphology 563, 596, 925, 935, 971, 1239, 1746, 1906 



, functional 24, 84, 86, 281, 282, 322, 843, 1471, 1720 



of valves 690 



Morro Bay, Calif. 771 



Mortalities were rare 1227 



Mortality 40, 41, 71, 81, 83, 92, 109, 132, 133, 191, 214, 238, 281, 



356, 376, 378, 398, 436, 443, 455, 475, 493, 507, 514, 602, 675, 680, 692, 



712, 713, 716, 799, 827, 828, 829, 1045, 1123, 1229, 1236, 1244, 1268, 1282, 1293, 



1502, 1504, 1543, 1675, 1693, 1931, 1935, 1961, 1998, 2000, 2045, 2047, 2051, 2070, 2143, 



2152, 2155 



, annual 829 



, heavy 602 



_______ high 433, 502, 718, 803 



, increased natural 801 



__________ increases 801 



low 1268 



, mass 667 



, natural 1693 



, no unusual 1148 



normal 80 3 



of clams 804 



larvae 1043, 1362 



natural sets 1840 



patterns similar in all assemblages 2155 



rate 540, 634, 651, 652, 667, 675, 713, 717, 987, 988 



, reduce 39 8 



, reduced 835 

 types, two 826 

 very high 1269 



Mosquito control 1027 

 Most northern area 417 

 Motion 1764 



Mottled with dark brown 899 

 Mount Desert Island, Me. 123 



Hope Bay, R. I. 246, 316 



Mouse units 412 



Mouth 215 4 



Moved upward 7 to 8 cm/mi n 1309 



Movement 1027, 2111 



_________ downward 101, 107 



__________ extent of 667 



, horizontal 85, 86, 337, 338 



_______ of shell 85 



, vertical 85, 86 



, voluntary 583 



Movements 84, 152, 338 



, directional 107 



, large scale 1700 



747 



