NAIS. F

Nais. g. . 342,343,346,348,350,331,332,333,359,360,361,366,

N. albida 367

appendiculata 366, 368, 369,

aurigena 367

barbata 343,368,369

bipunctata 367, 379

cæca, Mayer 356, 367

cæca, Müller 378

carolina 368,369376,

caudata 368,369,375

diaphana 367,445,449

diastropha 367, 445, 446

digitata 378, 381

elinguis 343,368, 369,370,371,374, 418

equisctina 379

escharosa 371,372

filifonnis 367, 403

fusca 368, 369, 373, 374

gigantea 367, 414, 435

gracilis. . . . 368,369,372,373

hamata 367, 376

Josinæ 368,369,373

lacustris, Dalyell?. . . 367,449

laticeps 367, 443

littoralis 367,414,415,418

longiseta 359, 367

lurco 367, 449

lurida 371,372

marina 352,368,369,374

papillosa 367, 395, 396

parasita 365, 367

picta 367, 379

proboscidea 362, 367

pusulosa 418,419

quadricuspida. . . . 367

rivulosa 368, 369, 370

sanguinea 367, 403

Ordres, Familles, Genres. Espèces. Pages.

N. scotica 367

serpentina. . . . 353, 354, 355, 367

ternaria 357, 367, 375

tubifex 367, 402

umbellifera 347

uncinata 355, 367

vermicularis. . . 343,353,367,446

Nautilograpsus. sp.. . . 596,611

NEMATODES. O vii,x

NEMERTEA. 0 559

Nemertes. g 599,600,612

N. Antonina 559

Borlasii 600

carcinophila 611

gracilis 600

obscura. ...... 615

octoculata 600

olivacea 551

pohjhopla 608

filifrons 601

NEMERTINEA. 0 549

NEMERTINI. 0 549

Nemertoscolex. g 642

N. parasitions 637

Nephelopsis. g 503,504,505

N. obscura 506

Nephelis. g. . . . 483,485,487,490,491,492,493,494,503,504,

N. argentina 505

Bouardi 505

cinerea . . 505

corduvensis 505

elongata 505

fervida 505

lateralis 505

lineata 505

marmorata 505

octoculata. . . . 479,493,495,505

per sa 505

picta 555

quadrilineata 505

quadristriata 505

Ordres, Familles, Genres. Espèces. Pages.

N. reticulata 505

scripturata 505

similis 505

subolivea 505

vermiformis 505

vulgaris 505

Nephelis. sp 505

Nereis. g 360

N. lacustris 361 , 362

Nitzchia. g 496

Notogymn'us. g 601

Notospermus. g 600, 601

N . drepanensis 600

Notostomum. g 523,524,534

N. læve 535

Œrstedia. g 555,573,601,607,609 612,

O. maculata 601,609

pallida 601,602

tubicola 609

unicolor 601 , 609

vittata 601 , 609

Oligocladus. g 630,655,656