INDEX OF GENERA AND SPECIES. 



289 



MEMBRANIPORA, 108. 



Barbarensis, 109. 



Californica, 108. 

 MERCENARIA, 22, 55, 94, 239. 



Kennerleyi, 22, 55, 94. 



perlaminosa, 22, 55, 94. 



varians, 239. 

 MERETRIX, 56, 118, 185, 239. 



arata, 240. 



Californica, 240. 



decisa, 118. 



fragilis, 185, 240. 



Hornii, 185, 239. 



lens, 239. 



longa, 240. 



nitida, 186, 240. 



ovalis, 240. 



Traskii, 56, 95. 



Tularana, 119. 



uniomeris, 118. 



Uvasana, 239. 

 MESALIA, 114. 



arenicola, 114. 

 METULA, 3, 72. 



Ke'mondii, 3, 72. 

 MITRA, 158, 221. 



cretacea, 158, 221. 

 Modelia, 80. 



striata, 80. 

 MODIOLA, 39, 101, 120, 191, 245. 



capax, 101. 



contracta, 120. 



cylindrica, 245. 



flabellata, 101. 



major, 191, 246. 



multiradiata, 30, 101. 



ornata, 245. 



PAL. VOL. II. 38 



Modiola recta, 101. 



Siskiyouensis, 245. 

 Molopophorus, 156, 219. 



striata, 157, 219. 

 MONOCERAS, 75. 



engonatum, 75. 



lugubris, 75. 



unicarinatum, 75. 

 MORIO, 223. 



tuberculatus, 223. 

 MORRISIA, 36, 124. 



Hornii, 36, 124. 

 MULINEA, 19, 20, 91. 



densata, 20. 



densata, 19, 91. 

 Murex, 69, 111. 



Californicus, 69. 



festivus, 70. 



fragilis, 111. 



multicast atus, 70. 

 MURICIDEA, 43, 69. 



Barbarensis, 69. 



Californica, 69. 



paucivaricata, 43, 69. 

 MYA, 90, 116. 



abrupta, 90. 



Montereyana, 116. 



subsinuata, 116. 

 MYSIA, 100, 24-. 



parilis, 100. 



polita, 243. 

 MYTILIMERIA, 90. 



Nuttallii, 90. 

 MYTILUS, 30, 101, 120, 191, 245. 



ascia, 191, 245. 



bifurcatus, 101. 



Californianus, 101. 



