INDEX TO GENERA AND SPECIES. 



241 



Pliysii squalifla, 158 



Pilidium fiilvum, . 147 



Pinna, 14 



Planaxis atra, 72 



Planorbis declivis, 159 



Fieldii, 159 



kermatoides, 158 



tuniidus, 158 



Plectopjlis achatina, 110 



Pleiodon ]Macmnrtrei, 104 



Pleurotoma liratn, 68 



monilifera, 68 



Plicatula perimbricata, 16 



Poraus pyrum, 152 



Posidnnomya Blatcbleyi, 13 



Protocera bryonia, 123, 133 



chiragra, 121 



crocata, 123, 133 



elongata, 123, 135 



lanibis, 122, 133 



millipeda, 123, 135 



pseudoscorpio, 



123, 134 



Scorpio, 123, 134 



violacea, 124, 135 



Proto Cornelliana, 164 



Pseudohvalina Mazatlanica,201 



201 

 201 

 20 

 38 

 37 

 26 

 198 



milium, 

 pura, 



Pterocera, 



Pupa. 



Pupa palanga. 



Purpura chocolatum, 



Pyrgula scalariformis, 



Radioconcba, 47 



Radula denticuticosta, 99 



Rreta gibbosa, 30 



Ranella, 20 



Tamp?eensis, 106 



Rhysota Chambertinii, 109 



Rissoina balteata, 72 



Rostellaria, 20 



Sanguinolaria Robertsii, 171 



' Scalaria umbilicata, 76 



Scambula perplana, 48 



I Scapbarca tenuicardo, 39 



I Scarabus trigonus, 111 



i Sinsyclonetna simplicia, 99 



1 Spinigera, 19. 21 



Saxicava insita, 40 



incita, 101 



j Solemya triasina, 102 



ventricosa, 103 



Spirifer obtusus, 17 



Spissula catilliformis, 108 



dolabriformis, 108 



Strigilla prora, 30 



Succinea lineata, 200 



inflata, 158 



recisa, 158 



Sillimani, 200 



Stretchiana, 200 



Tebennophorus auratus, 153 



Terebra assimilis, 67 



bipartita, 86 



costellifera, 66 



lauta, 66 



Peasei, 86 



propinqua, 66 



rosacea, 65 



sculptilis, 64 



suffusa, 65 



sulcata, 67 



Terebratula glossa, 42 



Torcula, 45 



Tornatellina hyalina, 157 



interstriata, 157 



Torinia perspectiviuncula, 80 



sulcifera, 79 



trocboides, 86 



Trigonarca cuneiformis, 98 



passa, 43 



Triton intermedins, 74 



Tritonidea fumosus, 86 



undosus, 86 



Tritonium pernodosum, 26 



Trocbus Byronianus, 82 



