INDEX. 527 
pencillus, Sabella, [IV ii 255, 261, 262, 273, 281. 
Penieilli, TV ii 860. 
Penicillum marinum, IV ii 360. 
Penicillus, [V i 82. 
penicillus, Ampharete, IV i 224. 
— Amphitrite, IV i 224. 
Penicillus marinus, [V i 224. 
penicillus, Sabella, IV i 4, 220, 221, 223, 230, 232, 
235, 236, 238, 244, 248, 360, 361. 
—  Serpula, IV i 224. 
—  Spirographis, 1V 1 224. 
= Tubularia, [LV i 224; IV ii 290. 
pennata, Hunice, IT 11 436. 
— Wears, IU m B57, 23. 
pentacanthus, Astropecten, I i 399. 
pentactes, Cucumaria, I 11 360. 
perarmata, Magalia, IT i 186. 
peremtoria, Anaitis, II i 74. 
pergamentaceus, Chetopterus, III i 118, 120, 
121. 
Periboea, IT i 115. 
Perinereis, II 11 257. 
Peripatus, IIT i 196. 
peripatus, Ephesia, III i 46, 50. 
— Spherodorum, III i 50, 51. 
peritonealis, Leontis, IT 1 303. 
peronea, Nemertes, I i 86; Tic 192. 
— Ommatoplea, I ic 192. 
perpatus, Pollicita, ITT i 48, 51. 
Perrieri, Nereis, II 1 301. 
(Neanthes), II 1 299. 
—  S§pirorbis, IV ii 387. 
pervius, Spirorbis, IV ii 321. 
Petaloproctus, IIT 1 292, 298, 343; IV ii 496. 
Peterseni, Hauchiella, IV i 202. 
Petersii, Vanadis (Halodora), IV ii 442. 
Petta, IV i 35, 58. 
Pettigrewi, Lumbriconereis, II 11 374. 
Phalacrostemma, IV i 7. 
Phallusia, 112; I ic 213 d. 
pharetratus, Antinoé, I 11 292. 
== Lepidonotus, I ii 292, 311. 
Phenacia, IV i 88,169. — 
Pherea, [IV i 101. 
Pherusa, IIT i 89; IV i 66. 
Pherusea, III i 82. 
Pherusiens, III i 82. 
Philippi, Serpula, [V ui 328, 348, 356. 
philocorallia, Eunice, IT ii 440. 
Phisidia, [TV 1 104, 
Pholas, III i 244, 303; IV i 6. 
Pholoé, I 1 246, 320, 486; III i 200; IV i 21; 
IV 1 427. 
Phoronis, I 11 254; IV i 9, 194. 
phosphorea, Husyllis, IT i 176. 
phosphoreus, Polycirrus, [V 1 200. 
Phryganea, II 1 423. 
Phyllantinoé, I i 370. 
phyllobranchia, Nephthys, II i 4. 
Phyllochxtopterus, III i 118, 129; IV u 475. 
phyllocirra, Nephthys, II i 32. 
Phyllocomus, IV i 65. 
Phyllodoce, I ic 151; IL i 4, 74; IL 1 252. 
Phyllodocide, II i 41; IV ii 428. 
Physalia, IV i 98, 123, 149. 
Physalus, I ii 241, 247. 
Phytozoa Turbellaria, [IV i 17; I ic 131. 
phyzelix, Terebelle, [IV i 95 96. 
picta, Hteone, II i 42, 99,100; IV i 430. 
— Harmothoé, I ii 341; IV i 146. 
— Myranida, II i 212. 
— Nais, III,i 21. 
— Nephthys, II i 3. 
—  Procerea, II 1 212. 
— Stephanosyllis, II 1 228. 
pictus, Autolytus, IT i 211, 212, 215. 
(Procerea), I i 212. 
— Polyophthalmus, III i 2, 7,8, 21. 
Pileolaria, IV ii 322, 323, 345 n, 416. 
pilosa, Arca, TV ui 419. 
— Trophonia, III 1 85. 
pinastroides, Rytiphlea, Il i1 242, 247; IV i 162; 
TV eee GO) 
Pinceau de mer, IV 11 262, 333. 
imi aselOVenie OO) weaned) 
pinnata, Leodice, II 11 435. 
— Nereis, If ii 485. 
pinnigera, Myrianida, II 1 228, 229, 331. 
= Nereis, II 1 229. 
Pionosyllis, II i 148, 161, 227; II ii 286, 350; IV 
i 453. 
pirifera, Spheerosyllis, [V ii 452. 
Piromis, III 1 85. 
piscatorum, Arenicola, II i 316”; III i 60, 
78. 
— Lumbricus, IIT i 60. 
Pisione, [V ii 426. 
Pisionide, IV ii 425. 
Pista, TW i 95, 98; 100, 157. 
placentula, Serpula, IV ii 364. 
Placostegopsis, IV 11 325. 
Placostegus, IV ii 323, 324, 370, 380. 
Planaria, I i 2, 30; I ic 130, 155. 
Planarie, I ic 181. 
Planariade, I i 39. 
Planarians, IIT i 175, 230. 
planci, Cucumaria, IT ii 350, 365, 371. 
planiceps, Clymene, III i 310. 
_ Euclymene, ITT i 310, 
i Tsocirrus, ITT i 310. 
Planorbis, [IV 11 384, 409. 
Platyearcinus, ITI i 211. 
Platyelminthes, I i 34. 
Platynereis, II ii 257, 303. 
plectorhyncha, Pterosyllis, IT 11 228. 
plectoryncha, Gattiola, IT 1 225. 
Pleurobrachia, 1 i 5; I u 312. 
Pleurophyllidia, I 11 269. 
