MARINE SHELLS. 25 
Pucpura triserialis......a/27.>- WHOUTINA 5. <0 chireiar a: California 
PYRULA. 
Pebineimelongina. :. sds. sada Lam. (See Cassidulus.) 
Pyrula (Sycotypus) papyracea ..Say............. Gulf of Mexico 
RANELLA. 
Ranella californica............. EP ge NO PeUI TUR Md so California 
amellacandata....veecncee MOUs tees af tara! Ae South Carolina 
UO LL ESSE GaN 08 3) OSE Dai ots eo Florida 
RANGIA. 
Rangia cyrenoides. 5 eee Desh. = Gnathodon cuneatus. 
RAPANA. 
Peapaita Cineria. ..'.... aes aes Stimp. (See Buccinum plicosum.) 
RISSOA. 
PaeMeACWLOUS.... .. 2. sot agaeno. Gld. ) Pasx eed 
Ss iwscoina interioseawe Og. fT Tero: California 
ROWELLIA. 
owed radiata. . ../solameaes 2D AED ea a Peo California 
RUPELLARIA. 
Rupellaria lamellifera......... COUP Eo ola SUE Eee California 
SANGUINOLARIA. 
Sanguinolaria californiana ....Conr. (See Macoma inconspicua.) 
Sanguinolaria nuttalli......... Cae alae sy 2 bss 2 California 
SAXICAVA. 
Pamicavaarctica....:-igees..t.% OSM Ara eae tarts Wetatty nd acetate Maine 
Samicava pholadis.... 2526. 45.% TIGA tg hy aes shel a: California 
