Graeffei

Ototyphlonemertes. g 558, 602, 607, 6 1 2

O.Kefersteinii. . . . 601,602

pallida 553,558,602,612

OXYPTYCHUS. S.-G 514

Ozobranchus. g 523,524,525

O. branchiatus 525

Pachydrilus. g 356, 357

Pagurus pubescens.. . . 636

PALÆOMEMERTINI. S.-0 605,618

Paludina vivipara. . . . 448

Paranais. g 347

P. littoralis 415

uncinata 355

Parasitic ciliated animal. . 662

Parthenope. g 442,452,454,456

P. serrata 454, 455, 456

Planorbis corneus. . . . 448

Pelagonemertes. g.

P. Rollestoni.

Ordres, Familles, Genres. Espèces. Pages.

PELAGONEMERTIDÆ. F 001,603,613,614,620

Pelorïctes. g 346,411,412

P.arcnarius 415

inquilina 415, 435

Perça fluviatilis 529

Philobdella. s.-g 514

Pholas crispata 548

Phreoryctes Menlceanus. . 444

Phyllixe. g 496

Physa fontinalis 418

Pilidium. g 593,599'

PlNACOBDF.LLA. G 503,504,510,515

P. Kolenatii 510

Piscicola. G. . 480,483,488,493,523,524,527,528,329,530,533

P. agilis 529

Cichlæ 529

conspersa 529

Fabricii 529

fasciata 529

Funduli 529

geometra 493,529

linearis 529

maculata 529

Milneri . 529

muUistriata 529

Percæ 529

piscium 529

punctata 529

guadrioculata 529

rcctangulaia 532

Scorpii 529

sexoculata 529

stellata 529

torquata 529

Plagiostoma. g 644

P. dioicum 629

Lcmani 628

vittatum 644

PLAGIOSTOMIDÆ. F 644

Planaria. g 537,599,621,650

P. alpina b50

fusca 650

Ordres, Familles, Genres. Espèces. Pages.

P. linearis 601

Pallasii 650

sanguinea 600

torva 650

PLANARIADÆ. F 647,649,650

PLANARIÆ. F 621

PLANARIÆA. 0 ix,x, 597,598,612,621,625,629,634