134 GENERAL INDEX. 



Pristodus Agassiz VI, 402 



acuminatus St. J. & W VI, 402* 



falcatus Ag "VI, 402 



Proboscina Audouin VIII,368 



Productus Sowerby 11,280,297,320; 111,412,460,528; V.569 



' ' americanus S wall HI. 530 



( " analogus Phill.) 111,426 



( " asper McCh.) V.569 



costatus Sby V.570 



( " depressus Sby.) .111,426 



( " elegans N. & P.) 11,297 



( " " Steininger) 111,426 



ellipticus M. & W ...111,460* 



exanthematus Hall?? 111,412* 



flemingi Sby 11,298 



" giganteus (Martin) 111,529 



lasallensis Worthen V, 569* 



longispinus Sby 11,298,321; V.569* 



magnus M. & W 111,528* 



( " ) modestus Say 111,978 



muricatus N. & P n,321 



nanus M. &W 11,320* 



nebrascensis Ow V,569* 



parvus M. &W 11,297* 



punctatus Mart V, 569* 



( " Quadrangularis Stein.) 111,426 



( ' ' rugosus Hisinger) Ill, 426 



( " rogersi N. & P.) V.569 



scitulus M. & W 11,280* 



splendens N. & P 11,321; V.569 



subaculeatus N. & P 111,413 



swallovi Shum 111,462 



( " tubulospinus McCh.) V.569 



( " wabashensis N. & P.) 11,321; V.569 



Proetus Steininger Ill, 460 



ellipticus M. & W.. 111,460* 



' ' swallovi Shum III. *62 



Protaster Forbes V.509 



gregarius M. & W V.509* 



miltoni Forbes V,510 



Protocrisina Ulrich VIII.369,405 



exiguaUlr VIII.369,405* 



Protolycosa Roemer 111,568 



Protonopsis Bart : 11,139 



Protospongia Salter VIII.216,237 



fenestrata Salter VIII.237 



(?) minor Matthew VIII,237 



var. distans Mat VIiI,237 



' ' tetranema Dawson VIII, 237 



Protozoa (11,145,233,262); 111,345; V.560; VI,500 



Proutella Ulrich VIII,366,403,674 



discoidea Prout VIII, 674* 



Psammodontidae de Koninck VII,57,197 



Psammodus Agassiz 11,36,75,92,107,111; IV,362,370; VII, 171, 197 



angularis N. & W 11,107*; VH.222* 



cactus St. J. & W VII.217* 



" canaliculatus McCoy 11,109; VII.222 



