Index. 



okai, n. sp., 2, 3, 11, 12, 15. 



owstoni, 12. 



ritteri, 12. 



villosa, 12. 

 Halomolgula, n. gen., 1. 

 Halomolgula ovoidia, ii. sp., 1, 3, 



8. 

 Hartmeyer, E., cited, 10. 

 Herdman, W. A., cited, 23, 27, 31, 



37. 

 Hippothoa biaperta, 287. 



divaricata, 296. 



divergens, 287. 

 Hold-fasts of Benthaseidia, 26. 

 Holwav, E. S., 363. 

 Hypobythins, 28, 29, 30. 

 Incrusting Chilostomatous Bryo- 

 zoa of the West Coast of 

 North America, 253. 

 Infnndibula in Molgula ovoidia, 6. 

 Intelligence of starfish, 152. 

 Japan, 13. 

 Jennings, H. S., 53. 

 Karsten, G.. cited, 390. 

 Kiaer, J., cited, 11, 35. 

 Kofoid, Charles Atwood, 228, cited; 



345, 387. 

 Lagenipora, 283. 

 Lagenipora spinulosa, 254, 283, 

 Lahille, F., cited, 44. 

 Langiiets, dorsal, of Benthaseidia, 



27. 

 Larva of enteropneusta, 190. 

 Lauterborn, E., cited, 352. 

 Lepralia, 279, 298; (Busk) 300, 

 301; (Johnston) 279, 281, 285, 

 298, 301, 307. 

 Lepralia areolata, 285. 



auriculata, 286. 



hiaperta, 287. 



hilabiata, 298. 



californica, 281. 



cecilii, 288. 



concinna, 300. 



discreta, 289. 



hyalina, 289. 



landsborovii, 305. 



linearis, 291. 



var. biaperta, 287. 



malusii, 282. 



ochracea, 286. 



perugiana, 288. 



reticulata, 305-6. 



trispiiw.sa, 302. 



variolosa, 302. 

 Light, reaction of starfish to, 102. 

 Lobes, secondary, of the papillae 

 in Ciona mollis, 38. 



Loeb, J., cited, 58, 97, 121, 377. 

 Magellan, straits of, 22. 

 Mediterranean, 40. 

 Membranipora, 257, 275; key to 



species of, 258. 

 Membranipora californiensis, 260. 



canariensis, 314. 



cellepora, 257. 



circumelathrata, 258-9. 



cymbaeformis, 265. 



gothica, 277. 



horrida, 258, 260. 



lacroixi, 258, 261. 



nienibranacea, 258, 267. 

 form serrata, 268. 



occultata, n. sp., 258, 262. 



patula, 258, 263. 



sandalia, 258, 264. 



serrata, 258, 268. 



spinifera, 258, 265. 



tehuelcha, 258, 265. 



tuberculata, 265. 



unicornis, 262. 



villosa, 258, 269. 

 Membrauiporae, metamorphosis of, 



272. 

 Membraniporidae, 256. 

 Mesoblast of Dolichoglossus kowa- 



levskii, 210. 

 Mesoderm of Dolichoglossus pusil- 



lus, 207. 

 Metamorphic period in larval life 



of enteropneusta, 190. 

 Metamorphosis of membraniporae, 



''72 

 Michaelsen, W., cited, 16, 22, 29, 



31 ; species dedicated, 32. 

 Microcosmus, 35. 

 Microcosmus arenaceous, 20. 



transversus, n. sp., 2, 18, 20. 

 Mieropora, 275. 

 Micropora coriacea, 254, 275. 



ciliata form californica, 281. 

 Microporella, 281. 

 Microporella californica, 254, 281. 



malusi, 254, 282. 

 Mieroporellidae, 256, 280. 

 Microporidae, 256, 275. 

 Millepora, 294, 309, 312. 

 Molecular friction, 360. 

 Molgula arctica, 10. 



ovoidia, infundibula in, 6. 



regularis, n. sp., 1, 8, 10. 



tenax, 10. 

 Molgulidae, 1, 6. 

 Mollia divaricata, 296. 

 Molluscoida, 255. 

 Mollusks, cleavage of egg of, 204. 



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