770 



INDEX. 



Page. 



Mustelus canis 521 



My a acuta 672 



arctica 671 



arenaria . . . 672, 309, 333, 357, 359, 365, 



372, 378, 410, 423, 429, 435, 458, 



463,469,490,515,521 



byalina 672 



mercenaria 672 



Myliobatis Freminvillei 521 , 624 



Mysis Americana. . . 552, 370, 377, 396, 409, 



415, 422, 431, 434, 452, 455, 458, 



479, 519, 520 



stenolepis 551, 370, 377, 479 



vulgaris 552 



Mytilus borealis 692 



corrugatus 694 



decussatus 695 



clemissus 693 



discors 694 



discrepans 694 



edulis . . 692, 307, 333, 361, 365, 372, 



378, 388, 393, 401, 410, 418, 424, 



426, 429, 432, 435, 453, 470, 475, 



515, 546 



levigatus , . . . 694 



lugubris , 460 



modiolus 693 



notatus 692 



pellucidus , . 692 



pholadis 671 



plicatus 693 



rugosus 671 



Myzobdella lugubris 625 



Nanomia cara 736, 455 



Naragauseta coralii..607, 397, 410, 422, 494 



Natica clausa 647, 519 



duplicata 646 



flava 518 



beros 646 



immaculata 646, 517 



pusilla 647, 417, 423, 426, 429 



triseriata 646 



Nassa fretensis 640 



luoata 645 



obsoleta , 64 1 



trivittata 641 



vibex 640,371,377,479 



Nectonereis mcgalops 592, 440, 453 



Nematodes 634, 453, 455, 456 



Nematonereis 594, 508 



Nemerteans 627, 324 



Nemcrtes obscura — 628 



olivacea 628 



species 629 



Page. 



Nemertes socialis 628, 324, 332, 392 



viridis 628 



Nemopsis Bacbei 7.33, 454 



Gibbesi 733 



Nephthys borealis 583 



bucera 583, 416, 422 



ciliata 583 



picta 583, 348, 364, 422, 428 



iugeus 583, 431, 434, 507, 521 



Neptunea curta 638 



pygmaea 639, 508, 518 



Nereilepas fucata 591 



Nereis ciliata 583 



cuprea 593 



fucata 591,494 



grandis 590 



]imbata.-590 318, 332, 341, 364, 371, 

 377, 382, 392, 422, 440, 453, 463, 516 



pelagica 591, 319, 332, 397, 410, 



422, 428, 434, 453 



Tirens .. .590, 317, 332, 341, 364, 367, 



371, 377, 440, 453, 455, 463, 468, 



487,514,519 



Yankiaua 590 



Nerine agilis 600, 346, 365, 490 



cirrata .». . 602 



coniocepliala 602 



Nerocila munda 571, 459 



Neuroptera 543 



Neverita duplicata ..646, 354, 365, 426, 429, 



490 



Nicomacbe dispar 608, 508 



Nicolea simplex 613, 321, 332, 382, 392, 



397, 410, 422, 453, 494 



Ninoe nigripes 595, 508 



Nogagus Latreillei 576, 457, 459 



tenax 577,457,459 



Notomastus filiformis.611, 342, 365, 371, 377 

 luridus. . 610, 342, 365, 371, 377 



Notospermus viridis 628 



Nucula corticata 691 



delphiuodouta 691, 509 



Gouldii 690 



limatula 689,518 



minuta 690 



navicularis 690 



proxima . . . .691, 418, 424, 432, 435 

 515, 518, 519, 520 



radiata 691 



sapotilla 689, 518 



tenuis 691,518,519 



tenuisulcata 690 



tb racial form is 690 



tbraciformis 690, 749 



