1911 REPORT. 
179 
Mysis, . 
americana, 
americanns, 
arctica, .. . 
spinulosus, 
page. 
306, 541 
307, 54 i 
.... 308 
.... 540 
.... 308 
N. 
Ncesa caudata, . 264 
depressa, . 271 
Nannastacidae, . 536 
Naobranchia, .85, 475 
cygniformis, . 85 
pomolobi (new 
name), .85, 475 
Natrix sipcdon, . 340 
Naushonia, . 571 
crangonoides, . 571 
Nautilograpsus, . 442 
minutus, . 443 
Necturus tnaculosus, .. .. 340 
Nematocarcinidae, . 551 
Nematocarcinus, . 551 
cursor, . 551 
ensiferus, . 551 
Neopanope, .349, 400, 591 
pourtalesii, . 400 
texana, . 402 
sayi, .400, 591 
Neopenceopsis, . 313 
paradoxis, . 313 
Neoscalpellum, . 499 
Neotanais, . 533 
americanus, . 533 
Nephropsidae, . 568 
Nephropsis, . 568 
aculeata, . 569 
aculeatus, . 568 
agassizii, . 569 
rosea, . 569 
stewarti, . 568 
Neptunus, . 
hastatus, .. 
(Neptunus,) 
sayi, . 
Nerocila, . 
acuminata, . 
blainvillii, .. 
lanceolata, . , 
munda, . 
Ne sip pus, . 
alatus, 
curticaudis, 
orientalis, . 
Nicea, . 
lucasii, . 
. 592 
. 416 
cribrarius ,.. 413 
sayi, . 593 
. .. 144 , 145 , 593 
.. .276, 286, 528 
. 528 
. 286 
286, 287, 529 
. 478 
. 478 
. 478 
. 478 
. 5io 
. 5*o 
PAGE. 
Nogagus, ... .83, 112 
curticaudis, . 478 
latreillii, .478, 479 
Nogaus, .hi, 112 
latreillii, . n 2 
Nothocaris, . 531 
rostricrescentis, . 551 
Notodelphyoida, . 81 
Notonectes, . 242 
Notostomus, . 550 
gibbosus, . 550 
robustus, . 550 
vescus, . 550 
Notropis chalybaus, . 327 
bifrenatus, . 241 
cornutus, . 241 
Nyctiphanes, . 540 
australis, . 540 
norwegica, . 540 
O. 
Octolasmis, . 502 
americanum, . 502 
geryonophila, . 502 
warwickii . 502 
Ocypete, . 457 
Ocypoda, . 457 
albicans, . 45 7 
arenaria, . 458 
heteroclielos, . 445 
maracoani, . 445 
pugilator, . 446 
pusilla, ... 440, 447 
Ocypode, .445, 457, 59 8 
albicans, .457, 598 
arenaria, . 458 
Ocypode, arenarius, . 458 
pugilator, . 446 
quadrata, . 458 
reticulatus, . 440 
( Sesarma ) reticulatus,... 440 
Ocypodidae.432, 445, 597 
Ogyris, . S 6o 
alphaerostris, . 560 
orientalis, .. 560 
Oithona, . 482 
plumifera. 482 
Oitlionclla, . 482 
helgolandica, . 482 
Olencira, .276, 283, 528 
lamarkii . 283 
praegustator, .284,528 
Oncaea. 487 
venusta, . 487 
Oncaeidae . 4 8 7 
Oniscidae .222, 227, 517 
