MUSEUM OF COMPARATIVE ZOOLOGY. 



481 



Periploma angulifera, I. 305, 306. 



fragilis, I. 197, 306* 



inaaquivalvis, I. 305. 



papyracea, I. 197, 306* 



papyratia. I. 306. 



undulata, I. 306. 

 Peristichia, II. 29, 339. 



agria, II. 29, 340. 



toreta, II. 29, 339, 340. 

 Perna, II. 450, 451. 



ephippium, II. 434, 442, 450. 

 Perotrochus, II. 34, 397. 

 Perrieria, II. 200. 

 Persicula, II. 13, 136, 143. 



catenata, II. 13, 143. 

 Persona, II. 220. 



anus, II. 220. 

 Petaloconchus, II. 23, 262. 



irregularis, II. 2G2. 

 Petricola, I. 194, 276. 



divaricata, I. 194, 276. 

 Pharddel/a, II. 29, 333, 334. 



Folinii, II. 29, 334. 

 Phasianella, II. 30, 302, 320, 351. 



affinis, II. 351. 



brevis, II. 30, 351. 



concinna, II. 351. 



concolor, II. 351. 



inflexa, II. 326, 328. 



pulchella, II. 351. 



tessellata, II. 351. 



umbilicata, II. 351. 

 Plmianema, II. 278. 

 Philine, II. 7, 57. 



amabilis, II. 59. 



angulata, II. 58. 



aperta, II. 58. 



Candeana, II. 58. 



finmarcliica, II. 57. 



Jlexuosa, II. 7, 59. 



infundibulum, II. 7, 57* 58. 



planata, II. 7, 58* 



quadrata, II. 57. 



sagra, II. 58. 

 Phlegmodoris anceps, II. 453. 

 Pliorus, II. 290. 

 Phos, II. 15, 177, 178. 



antillarum, II. 179. 



Beaui, II. 15, 178* 179, 180. 



Candei, II. 15, 179. 



erectus, II. 179. 



Grateloupianus, II. 179. 



guadeloupensis, II. 178. 



VOL. XVIII. 



31 



Phos intricatus, II. 15, 180. 



pallidus, II. 178. 



parvus, II. 15, 180, 226. 



senticosus, II. 179, 180. 



unicinctus, II. 15, 178 



veraguaiinsis, II. 179. 

 Phyllidiopsis papilligera, II. 453. 

 Phyllonotus, II. 17, 198, 199. 



fulvescens, II. 17, 198. 



hystricinus, II. 17, 200, 205. 



interserratus, II. 17, 199, 200. 



Pazi, II. 17, 199. 



pomum, II. 17, 197, 198. 

 Pilidium fulvum, II. 412. 

 Piliscus Krebsii, II. 290. 

 Pisania, II. 15, 177. 



aethiops, II. 177. 



coromandeliana, II. 180. 



janeirense, II. 177. 



maculosa, II. 177. 



pusio, II. 177. 



striata, II. 177. 



tranquebariea, II. 180. 



undosa, II. 180. 

 Placophorida, II. 416. 

 Platidia, I. 187, 204. 



anomioides, I. 187, 204. 

 v. radiata, I. 187, 204.* 

 Plectodon, I. 196, 299, 300 ; II. 395. 



granulata, I. 300. 



scaber, I. 295, 299. 

 v. velcetina, I. 300. 

 Plejona, II. 146. 

 Pleuronectia, I. 208. 



lucida, I. 211. 

 Pleurotoma, II. 8, 72, 303, 455. 



acantliodes, II. 114. 



albella, II. 188. 



albida, II. 8, 72, 73. 



amblia, II. 92. 



antillarum, II. 72, 111. 



antonia, II. 116. 



bandella, II. 116. 



Barretti, II. 72. 



buccinoides, II. 180. 



calliope, II. 78. 



caribsea, II. 111. 



cataphracta, II. 80. 



Catherinae, II. 100. 



cedonulli, II. 77, 78. 



chariessa, II. 122. 



chyta, II. 115. 



circinata, II. 99. 



