Index 
lockingtoni, 241, 244, 284, 319, 432. 
Lophoxanthus bellus, 241. 
frontalis, 242. 
leucomanus, 243, 244. 
Lophozozymus frontalis, 242. 
lowei, Fabia, 253, 254, 281, 320, 436. 
Raphonotus, 254. 
Loxorhynchus, 194, 212. 
erispatus, 212, 213, 281, 319. 
grandis, 212, 213, 281, 319. 
Lucapina crenulata, 255, 268, 436. 
lunata, Heteractaea, 248, 284, 320, 
432. 
lunatus, Pilumnus, 248. 
Lupa bellicosa, 236. 
Lysmatidae, 26, 27, 80. 
Macoma, 260, 324, 338, 340. 
macrocheles, Alpheus, 76. 
macrophthalma, Spirontoecaris, 51, 65, 
72, 314. 
magdalenensis, Inachoides, 199, 200. 
magister, Cancer, 218, 219, 228, 229, 
230, 232, 283, 293, 298, 299, 319, 
320, 327, 329, 331, 333,335, 337, 
339, 347, 352, 353, 378. 
magna, Pasiphaea, 27, 28, 312. 
Maiidae, 192. 
mandtii, Lopholithodes, 156, 157, 282, 
317, 400. 
margarita, Pontonia, 39. 
Measurements, explanation of, 13, 17. 
megalopa, crab, 71, 342, 345, 346, 347. 
mendica, Nassa, 139. 
mertensii, Hapalogaster, 150. 
Pagurus, 146. 
Parapagurus, 122, 130, 146, 282, 284, 
316, 390. 
Microrhynchus hemphillii, 195. 
Mimulus, 193, 204. 
foliatus, 204, 283, 318. 
minimus, Pagurus, 144. 
Pylopagurus, 121, 125, 130, 144, 282, 
293, 294, 316, 335, 390. 
minutus, Cancer, 272. 
Planes, 272, 284, 285, 321, 450. 
Modiola, 254. 
mollis, Sergestes, 20. 
Mollusean fauna, 301. 
mollusk(s), 116, 249, 253, 254, 259, 
268, 291, 328, 338. See also As- 
trea, bivalve, Cardita, Cardium, 
clam, Dentalium, Donax, Haliotis, 
Kellia, limpet, Lucapina, Ma- 
coma, Monia, mussel, Mya, Myti- 
lus, Nassa, oyster beds, Paphia, 
Pholas, Pythina, rock-bearing, 
Saxidomus, Schizothaerus, and 
univalve. 
Molpadia, 259, 261, 440. See also ho- 
lothurian. 
Molpadia arenicola, 440. 
Monia, 330. 
montagui, Pandalus, 43. 
tridens, Pandalus, 40, 41, 42, 313, 
384. 
multispina, Leptolithodes, 159. 
Paralomis, 158, 159, 317, 404, 418. 
multispinus, Leptolithodes, 159. 
Munida, 163, 164. 
gregaria, 166. 
hispida, 165, 166, 167, 317, 420. 
quadrispina, 165, 282, 285, 317. 
Munidopsis, 163, 167. 
aspera, 168, 171, 284, 285, 317, 420. 
hystrix, 168, 317. 
quadrata, 168, 170, 283, 285, 317. 
verrilli, 168, 169, 317. 
munita, Crago, 83, 98, 99, 282, 315. 
Crangon, 98. 
munitella, Crago, 84, 98, 101, 102, 267, 
282, 295, 315, 333. 
Crangon, 101. 
munitellus, Crangon, 101. 
munitus, Crangon, 98. 
Mursia, 190. 
gaudichaudii, 190, 284, 318. 
musica, Uca, 279, 280, 283, 321, 458. 
mussel, 268, 436; edible, 434. See also 
Mytilus. 
Mya, 253, 254, 259, 260, 267, 326, 336. 
myops, Lepidopa, 172, 284, 317, 420. 
Lepidops, 172. 
Mytilus, 253, 254, 330. 
edulis, 268, 436. 
Nassa fossata, 139. 
mendica, 139. 
Natantia, 18. 
Nectocrangon, 81, 82, 102. 
ealiforniensis, 102, 281, 315. 
nemerteans, distribution of, 288. 
Neptunus xantusti, 237. 
Neriocystis, 78, 382. See also kelp. 
newcombei, Hupagurus, 135. 
nigricauda, Crago, 82, 84, 86, 93, 94, 
102, 283, 284, 293, 298, 299, 300, 
314, 324, 326, 328, 330, 332, 334, 
336, 338, 340, 342, 344, 345, 346, 
347, 348, 349, 350, 351, 352, 353. 
Crangon 84. 
nigromaculata, Crago, 82, 86, 87, 284, 
293, 298, 299, 314, 324, 326, 332, 
334, 336, 338, 353, 372. 
Crangon, 86. 
novemdentatus, Cycloxanthops, 239, 
284, 319, 432. 
novem-dentatus, Xanthodes, 239. 
nudus, Brachynotus, 273. 
Hemigrapsus, 271, 272, 273, 274, 
283, 295, 297, 321, 352, 452. 
Heterograpsus, 273, 274. 
Pinnotheres, 251, 252, 281, 320. 
Pinnotheres, 251. 
Pseudograpsus, 273. 
nuttallii, Epialtus, 201, 202, 203, 284, 
318. 
