Index 



Lumbrinereidae, 62. 



Lunatia duplicata, 314. 

 heros, 314. 



Lupinus arboreus, 75. 



Lutz, A., cited, 488, 489. 



Lygaeus militaris, 79. 



Lysidice, 221, 226. 



McClung, C. E., cited, 370. 



McCulloch, Irene, 75; cited, 383. 



McEwen, G. F., acknowledgment to, 

 173, 191, 208; cited, 241. 



McGlashan, H. D., acknowledgment 

 to, 32. 



Mcintosh, W. C, cited, 62, 63, 206, 

 209, 221, 227, 228. 



Macoma balthica, 303, 304, 305, 307, 

 320, 322. 

 inquinata, 303, 304, 307, 320, 321, 



322. 

 nasuta, 303, 304, 307, 312, 320, 321, 

 322. 



Madeira Islands, 95. 



Maier, H. N., cited, 353, 354, 357, 

 361, 378, 380. 



Mangin, 0., cited, 91, 450, 451. 



Mare Island Navy Yard, California, 

 damage done at, by shipworms, 

 29. 



Marenzeller, E., cited, 174, 206. 



Massachusetts, Commissioners on Fish- 

 eries and Game, cited, 309; clam 

 industry in, 314. 



Mastigophora, order, 400, 404. 



Matsuura, U., cited, 486. 



Matthews, J. E., cited, 145. 



Maupas, E., cited, 353, 356, 378. 



Maxwell, S. S., acknowledgment, 108. 



Meadow mouse. See Microtus cali- 

 fornicus californicus. 



Metaperidinium, 412, 413, 421, 428, 

 429, 430, 431, 435, 438, 444, 445, 

 446, 447, 454, 460, 461. 



Metschnikoff, E., 95. 



Meunier, A., cited, 412. 



Michael, E. L., 239; cited, 202, 282. 



Microtus californicus californicus, 1; 

 gas inflation in, 4. 



Mitosis in Giardia microti, 1; phases 

 of, 11, 16, 17, figures showing, 

 10, 26; correlated with cytoplas- 

 mic structures, 18; conclusions, 

 22. 



Miyagawa, Y., cited, 486, 487, 491. 



Mivairi, K., 486, 487; cited, 487. 



Modiolus, cf. rectus, 303, 320, 321. 



MoUuscan Fauna of San Francisco 

 Bay, A Quantitative Analysis of, 

 299; collection of material, and 

 method of procedure, 300-301; 

 general distribution, 301; species 

 of, 303-308; economic consider- 

 ations, 308; factors governing 

 distribution, 317: depth, 318, 



type of bottom, 318, salinity, 

 322, temperature, 324, food sup- 

 ply, 327, biotic environment, 330; 

 summary, 331. 



Monaco, Oceanographic Institute, 

 400. 



Monia macroschisma, 303, 320, 321. 



Moore, J. P., acknowledgment,. 47, 55, 

 172; cited, 206. 



Murray, J., cited, 202, 210, 215; 

 quoted, 284. 



Musculature of Heptanchus Macu- 

 latus, 151. 



Mustelus, genus, 167, 168. 

 antarcticus, 479, 481. 

 henlei, subclavian vein in, and its 

 relations, 481-483. 



Mya arenaria, 303, 304, 306, 307, 308- 

 310, 311, 314, 315, 320, 321, 322, 

 331. 

 California, 303, 304, 307, 320, 322. 

 californica, 322. 



Mytilus californianus, 311, 315. 

 californicus, 308, 311. 

 edulis, 303, 304, 305', 307, 308, 311, 

 313, 320, 321. 



Naegleria gruberi, 381, 383. 



Nakamura, H., cited, 486. 



Nansen, F., cited, 198. • 



Naples, Zoological Station, 400, 448. 



Narabayaski, F., cited, 486, 488. 



Nassa fossata, 303, 307, 320, 322. 

 mendica, 303, 320, 321. 

 perpinguis, 303, 320, 322. 



Nectomonads, 86. 



Nereis, 127. 

 dumerilii, 207. 

 mirabilis, 207. 



Neresheimer, E. R., cited, 378, 379. 



Nervous Impulses, The Transmission 

 of, in Relation to Locomotion in 

 the Earthworm, 103; materials 

 and methods of study, 106-107; 

 statement of problem, 108; ex- 

 periments with anesthetized 

 worms, 108; free moving, 109; 

 tension factor, 109; anatomy, 

 111; free nerve preparations, 

 112-116; limits of transmission, 

 118; dependence on nervous sys- 

 tem, 120; locomotor impulses, 

 122; giant fiber impulses, 125; 

 the nervous mechanism, 128- 

 130; transmission by reinforced 

 stimuli, 131; summary, 132-133. 



Neuromotor apparatus, first use of 

 term, 351, 378; parts of, 351; 

 definition of, 352; description of 

 motor parts, 352-354; structure 

 of, 354-359; "motorium," 355, 

 359, 365, figure showing, 356; 

 function of, 359; evidence of 



[525] 



