848 



INDEX OF SPECIES. 



reticulata, 



Scenella, 608 

 retifera, Lima, 509 

 retiformis, e, 



Dictyonema, 25 



Syringopora, 82 

 retrorsus, Cyrtolites, 610 

 retrostriata, Buchiola, 393 

 retusa, Scenella, 608 

 reversa, Strophonella, 222 

 rhombeus, Schizodus, 482 

 rhomboidalis, Leptsena, 226 

 richardsoni, Pyropsis, 765 

 richmondensis, Salpingostoma, 614 

 rigidus, um, 



Pecten, 507 



Syncyclonema, 507 

 rimulata, Membranipora, 170 

 ripleyana, Meretrix, 564 

 robustus, a, um, 



Aclisina, 695 



Barbarofusus, 777 



Calcisphaera, 1 1 



Cladopora, 94 



Cyathophyllum, 66 



Heilprinia, 777 



Helicotoma, 659 



Loxonema, 692 



Panenka, 391 

 rockymontanus, Spirifer, 337 

 rcemeri, 



Cladopora, 94 



Pecten, 497 



Vola, 497 

 rogersi, Leptodesma, 426 

 roissyi, Cliothyris, 354 

 romingeri, 



Cranasna, 302 



Dielasma, 302 



Gypidula, 279 

 rostellata, Leda, 401 

 rostrata, Anchura, 751 

 rotalia, Trepospira, 648 

 rotuloides, Palaeocyclus, 65 

 rotulus, Anomphalus, 671 

 rotunda, Holopea, 676 

 rotundata, Vanuxemia, 414 

 rudis, 



Ptomatis, 625 



Straparollus, 654 

 rufus, 



Chicoreus, 785 



Murex, 785 

 rugatus, 



Fulgurofusus, 775 



Volutilithes, 791 

 rugosus, a, um, 



Acervularia, 68 



Atrypa, 310 



Callopora, 140 



Eridophyllum, 72 



Helcionella, 607 



rugosus, a, um, 



Loxonema, 695 



Saxicava, 575 



Stenotheca, 607 



Stromatocoerium, 46 



Strophomena, 224 



Sycotypus, 769 

 rugulata, Euryzone, 645 

 rustica, um, 



Streptelasma, 55 



Urosalpinx, 784 



saffordi, 



Breviarca, 408 



Modiola, 522 

 sagenella, Glyptopora, 163 

 sageriana, Camarotoechia, 288 

 salteri, 



Hormotoma, 649 



Trochonema, 671 

 sancti-ludovici, 



Fenestralia, 150 



Myalina, 453 

 sancti-sabae, Pholadomya, 529 

 sao, Ptychopteria, 450 

 sappho, Camarotcechia, 288 

 sayanus, a, 



Scalaria, 710 



Volutilithes, 791 

 scabiosa, Crania, 206 

 scabra, Paranomia, 511 

 scabridus, a, 



Aviculopecten, 488 



Valvata, 724 

 scalariformis, Scalaripora, 163 

 scalaris, Unitrypa, 145 

 scalaspira, Nassa, 764 

 scalatus, um, 



Cerithium, 750 



Potamides, 750 



Pyrazisinus, 750 

 scamnata, Poleumita, 667 

 sceptrum, Dictyospongia, 15 

 scitulus, a, um, 



Chonetes, 237 



Cylichna, 811 



Loxonema, 695 



Yoldia, 403 

 scofieldi, Whitella, 415 

 sculptilis, 



Delthyris, 331 



Melania, 740 



Spirifer, 331 

 secalica, Fusulina, 12 

 securiformis, Pterinea, 420 

 sellaeformis, Ostrea, 465 

 semilunata, 



Lunatia, 718 



Natica, 718 

 semiplicata, Camarotoechia, 286 

 semireticulatus, Productus, 246 

 senectus, Unio, 480 



