412 



CALIFOENIA ACADEMY OF SCIENCES. 



Macoma nasuta 18, 21, 23, 25, 27, 31, 32, 33, 36, 55, 

 57, 62, 68, 75, 162, 163, 164, 167 

 var. kelseyi 27, 31, 36, 62, 75, 164 

 pedroana 157 

 seota 18, 21, 23, 25, 27, 31, 32, 33, 36, 62, 68, 75, 



163, 164 

 (Rexithosrus) secia var. edulis 164 

 tenera 160, 161 

 tersa 163 



yoldiformis 18, 21, 36, 62, 75, 161, 163, 165 

 Macron 79, 230 



kellettii 28, 42, 79, 230 

 lividus 42, 79, 230 

 Mactra 76, 164, 174 

 anatina 177 



californica 27, 36, 59, 62, 76, 174, 175, 176 

 catilliformis 23, 25, 27, 31, 33, 55 

 (Spisula) catilliformis 36, 62, 176 

 exoleta 27, 36, 62, 67, 76, 175 

 falcata 18, 21, 23, 25, 27, 31, 33, 176 

 (Spisula) falcata 36, 62, 176 

 hemphilli 27, 36, 76, 175 

 maxima 178 

 plauulata 174 



var. falcata 176 

 solida 175 

 stultomm 174 

 Mactracea 76, 174 

 Mactridas 76, 174 

 Mactrinaa 76, 174 

 Mcera salmonea 157 

 Malacostraca 85, 345 

 Maugilia 55, 78, 210, 211 



angulata 10, 22, 25, 31, 42, 52, 55, 62, 78, 212 

 (Cythara) branneri 211 

 (Clathurella) couradiaua 210 

 hooveri 28, 42, 78, 212 

 interfossa 213 



var. pedroana 19, 25, 42, 52, 79, 213 

 interlirata 19, 31, 42, 79, 213 

 oldroydi 19, 42, 79, 213, 214, 215 

 painei 19, 42, 79, 214 

 sculijturata 15, 42, 79, 214, 215 

 striosa 28, 31, 42, 62, 79, 215 

 (Taranis) strongi 215 

 variegata 212 

 Mangiliffi 214 

 Mantellum 73, 115 



dehiseens 7.3, 116 

 Margarita 84, 332 



calosloma 333 

 cidaris 3.34 

 heliciua 332 

 optabilis 332, 333 



var. knechti 22, 23, 28, 42, 84, 332, 333 

 var. nodosa 19, 22, 42, 84, 332 

 parcipicta 84, 333 



var. pedroana 19, 22, 24, 28, 31, 42, 84, 

 333 

 pupilla 42, 52, 84, 333 



Margarita salmonea 333 

 Marginella 79, 221 



globella 221 



jewettii 19, 22, 24, 25, 28, 42, 79, 221 



(Volvarina) varia 222 

 MargiuellidiB 79, 221 

 Megatebennus bimaculatus 339 

 Megerlia jeffreysi 93 

 MelampiiiiB 78, 196 

 Melampus 78, 196 

 Melampus luteus 196 



olivaceus 19, 22, 24, 25, 28, 31, 42, 62, 78, 197 

 Melauia rufa 274 



scalaris 277 

 Me.rcenaria perlaminosa 146 

 Meretrix callosa 145 

 Metis 75, 160 



alta 18, 23, 25, 27, 31, 36, 62, 75, 160 

 Mitra 79, 222 



episcopalis 222 



maura 22, 24, 25, 28, 42, 79, 222 

 Mitridas 79, 222 

 Mitromorpha 79, 223 



aspera 223, 224 



filosa 19, 42, 79, 223, 224 



gracilis 223 



intermedia 19, 42, 52, 79, 223 

 Modelia striata 303 

 Modiola fornicata 18, 31, 36, 52, 55, 120 



pulex 118 



recta 18, 23, 27, 31, 36, 62, 120 

 Modiolus 73, 120 



fornicatus 73, 120 



rectus 73, 120 

 Mcerella 75, 156 



salmonea 18, 36, 75, 157 

 Mollusca 72, 75, 76, 77, 78, 79, 80, 81, 82, S3, 84, 85, 95 

 MoUuscoidea 71, 92 

 Monia 73, 116 



maoroschisma 73, 116 

 Monoceros 80, 246 



brcvidens 247 



eugouatum 19, 22, 24, 25, 28, 31, 32, 42, 55, 56 

 62, 80, 246, 247 

 var. spiratum 247 



lapilloides 28, 42, 80, 246, 247 



lugubre 246 



punctatum 247 



unicarinatum 246 

 Monodonta (jaUiiia 326. 

 Monotremata 77, 194 

 Mopalia 85, 343 



blainvillei 343 



ciliata 28, 42, 85, 343 



muscosa 343 

 Mopaliidn) 85, 343 

 Motiretia reticulata 197 

 Murex 80, 243 



adustus 243 

 barbarensis 254 



