Index 
sica, Spirontocaris, 50, 55, 313. 
similis, Sergestes, 19, 312, 382. 
sitchensis, Cryptolithodes, 154, 155, 
282, 317, 398. 
small clam, 260. 
snyderi, Spirontocaris, 50, 54, 283, 
313. 
Speocarcinus, 248. 
californiensis, 249, 281, 320, 426. 
spinimana, Hupagurus, 130. 
Pagurus, 130. 
spinirostris, Crago, 101. 
spinohirsutus, Pilumnus, 247, 284, 320, 
432. 
spino-hirsutus, Acanthus, 247. 
Pilumnus, 247. 
spinosissima, Crago, 84, 96, 97, 100, 
101, 282, 293, 294, 315, 335. 
Crangon, 100. 
spinosus, Anasimus, 196, 197, 282, 284, 
318. 
Erileptus, 196, 198. 
spinulicauda, Axiopsis, 111, 281, 315. 
Axius, 111. 
spinulosus, Eryonicus, 106. 
Spirontocaris, 11, 47, 50, 59; juvenile, 
71; young, 71, 344, 348. 
affinis, 50, 56, 281, 313. 
bispinosa, 50, 54, 55, 282, 313. 
brachydactyla, 51, 65, 72, 314. 
brevirostris, 52, 65, 66, 67, 282, 295, 
296, 313, 333, 335. 
camtschatica, 58. 
earinata, 51, 58, 62, 281, 313. 
cristata, 52, 65, 69, 70, 71, 102, 282, 
293,298, 314, 324, 326, 328, 330, 
332, 334, 336, 338, 340, 342, 344 
345, 346, 347, 348, 349, 350, 351, 
352, 370. 
decora, 51, 58, 61, 282, 313. 
flexa, 51, 58, 59, 282, 313. . 
franciscana, 9, 51, 58, 60, 281, 295, 
313, 331, 333, 382. 
gracilis, 51, 58, 59, 282, 293, 313, 
3B), aay 
kineaidi, 51, 63, 282, 313. 
lagunae, 9, 50, 57, 281, 313, 382. 
lamellicornis, 50, 53, 282, 313. 
layi, 51, 63, 282, 313. 
macrophthalma, 51, 65, 72, 314. 
palpator, 52, 65, 66, 284, 313. 
paludicola, 51, 58, 64, 65, 69, 282, 
295, 296, 313, 331, 352. 
picta, 51, 64, 65, 68, 281, 313. 
prionata, 52. 
prionota, 50, 52, 282, 284, 313. 
sica, 50; 55, 313. 
snyderi, 50, 54, 283, 313. 
stylus, 60. 
taylori, 52, 65, 67, 68, 284, 295, 296, 
313, 331, 333, 352. 
washingtoniana, 50, 55, 313. 
sponge(s), 75, 205, 213, 215. 
starfishes, shallow water, distribution 
of, 287. 
stars, brittle, 328. See also ophiurans. 
Stenopides, 18. 
Stichopus californicus, 268. See also 
holothurian. 
stylirostris, Crago, 82, 84, 90, 91, 92, 
282, 293, 298, 299, 315, 324, 326, 
328, 330, 332, 334, 336, 338, 342, 
344, 345, 352, 353, 372. 
Crangon, 90. 
stylus, Spirontocaris, 60. 
subquadrata, Fabia, 253, 254, 255, 282, 
320, 436. 
Fabia, 254. 
subquadratus, Raphonotus, 253, 254. 
Synalpheus, 73, 77. 
lockingtoni, 77, 284, 314, 382. 
tanneri, Benthesicymus, 22, 23, 312. 
Chionoecetes, 210, 282, 285, 319. 
Eupagurus, 133. 
Pagurus, 128, 133, 134, 316. 
taylori, Heptacarpus, 67. 
Hippolyte, 67. 
Spirontoearis, 52, 65, 67, 68, 284, 
295, 296, 313, 331, 333, 352. 
Xanthias, 240, 245, 246, 281, 284, 
320, 432. 
Xanthodes, 246. 
Telmessus, 235. 
cheiragonus, 235, 282, 285, 319. 
tenuipes, Anchista, 39. 
Periclimenes, 39, 40, 284, 313. 
tenuissimus, Heptacarpus, 59. 
Terms, explanation of, 13. 
Thais lamellosa, 139. 
Thalassinidea, 110. 
tide pools, 49, 65, 69, 80, 109, 274, 296. 
tomentosa, Pinnixa, 258, 284, 320. 
transversus, Grapsus, 271. 
Opisthopus, 268, 281, 321, 446. 
Pachygrapsus, 269, 271, 284, 285, 
321. 
Trichocarcinus dentatus, 223. 
oregonensis, 234. 
walkeri, 234. 
Trichocera gibbosula, 226. 
oregonensis, 234. 
trigonocheirus, Pagurus, 133. 
trigonochirus, Pagurus, 132. 
trispinosus, Alpheopsis, 77. 
tuberculatus, Dasygyius, 199, 200. 
Inachoides, 199, 284, 318. 
Inachus, 199. 
Tubicola longipes, 257, 258. 
tubicola, Pinnixa, 265, 267, 282, 321, 
444; young, 256. 
tumida, Pelia, 211, 284, 319, 426. 
Pinniaa, 261. 
tumidus, Pisoides, 211. 
