318 



INDEX. 



Polystomella strigillata, Til 



Polytlialamous Foraminifera, 4!, 42, 4P, 139, 



Polytrema, genus, 235-237 ; its Listor3', 23.') ; external 

 characters, 235, 230 ; internal structure, 23fi ; affi- 

 nities, 23G, 237 ; geograpliical distribution, 237 



Polytrypc cylindracea (Defr.), 133 



Porcellanous shells of Foraminifera, 44, 45 



Prattia glandulosa (D'Arch.), 132 



Protozoa, sub-kingdom, 12 



PseudocMtimys, 27 



Pseudopodia, 13; of Kadiolaria, 15; of Lobosa. 16; 

 of Reticularia, 16 



Pullenia, ^enus, 184; its history, 1S4; externa! cha- 

 racters and internal structure, 184; affinities, 184 ; 

 geographical and geological distribution, 185 



PuUenia obliquiloculata, 183 

 — sphteroides, 184 



Pulvinulina, genus, 200, 210, 211; its history, 200; 

 external characters and internal structure, 210; 

 varieties, 211; affinities, 211; geographical and 

 geological distribution, 211 



Pulvinulina Badensis, 201 



— caracolla, 210 



— elegans, 21 1 



— verniiculata, 211 



Quinqueloculina, 75, 78 



R. 



Kadiolaria, 0-der, 15, 18-23 



Renulina (Lam.), 74, 84 



Renulites (Lam.), 74 



Reparation of Injuries, in Orbitolites, 1 1 8- 1 20 ; in Oper- 



culina, 260, 261 

 Reproduction of Rhizopoda, 32-39 

 Reticularia, Order, 17, 28-32; subdivision of, 61, 62 

 Rhabdogonium anomalum (Reuss), \6(} 

 RHIZOPODA, Class, first constituted by Dujardin, 7 ; 



its organization and physiological characters, 12- 



14; subdivision into orders 14-17: reproduction,, 



32-39 

 Rimulina (D'Orb.), 160 

 Robertiua (D'Orb.), 195 

 Robuliiia (D'Orb.), 160 



— arimiuensis, 162 



— echinata, 162 

 Rosalina (D'Orb.), 200 



— bulloides, 216 



— Poeyi, 215 



Rotalia, genus, 199, 201, 212,215; its history, 199- 

 201; external characters, 212, 213; internal 



structure, 214; canal-system, 214 ; affinities, 214; 

 geographical and geological distribution, 215; 

 reproduction, 37, 38 

 Rotalia ammoniformis, 212 



— Beccarii, 212 



— elegans (D'Orb.), 210 



— Gervillii, 204 



— Menardii (D'Orb.), 210 



— orbicularis, 213 



— Partschiana (D'Orb.), 210 



— pnlchella, 213 



— repanda (D'Orb.), 210 



— rosacea (D'Orb.), 205 



— Schreibersii (D'Orb.), 210 



— Scliroeteriana, 213 



— Soldaui, 213 



— turbo (D'Orb.), 204 



— umbilicata, 213 

 Rotalina (Will.), 200 



— iuflata (Will.), 141 



— mamilla (Will.), 205 



— nitida (Will.), 212 



— oblongaCWill.), 210 



— ocbracea (Will.), 205 

 Rotalin.e, sub-family, 174, 198-203 

 Rotalites trochidiformis (Lam.), 204 



Sagrina pulcbella (D'Orb.), 169 



Saracenaria (Defr.), 160 



Sarcode, characters of, 1^ 



Sculpture of Shell, value of, 57-59 



Segments, multiplication of, in Foraminifera, 4 1 ; con- 

 nection of, 51, 52 



Septal aperture, relative dimensions of, 51,52; value 

 of as difi'erential character, 55 



Septal plane, variations in form of, 57-59 



Shell, intimate structure of in Foraminifera, 14, 48; 

 porcellanous, 44, 45 ; hyaline, or vitreous, 45, 46 ; 

 arenaceous, 47, 48 



Sidcrolitcs (Lam.), 199, 223 



Siphonia (Reuss), 200 



Skeleton, value of characters furnished by, 43, 44 



Sorites orbiculus, (Ehr.), 107 



Specie.*, instability of in Foraminifera, 56-61 



Spermatozoids, supposed, of Foraminifera, ."5, 36 



Sphceroidina, genus, 7b, 185, 186; its history, 185; 

 external characters and internal structure, 185; 

 affinities, 185 ; geographical and geological distri- 

 bution, 18.5, 186 



Sphserozoum punctatum (MUll.), 22 



