Synonyms are in itali 

 are in bold-face. 



INDEX.* 



;; names of new species, etc., and titles of papers, 



Abyssal Styelas, 22. 



Abyssascidia, 28, 29, .SO. 



Affinities, of Benthascidia, 29. 



Agnesia, 29, 30. 



Alaskan waters, 13, 23. 



Albatross, United States Fisheries 

 Bureau Steamer, 1. 



Amphifltiatrum bituberculatum, 265. 



Allman, J. G., cited, 316. 



Amphioxus, 202, 203 ; compared 

 with Dolichoglossus pusillus, 

 213; origin of mesoderm in, 

 213-4. 



Annelids, cleavage of egg in, 204. 



Arctic regions, 13. 



Arnold, R., cited, 316. 



Ascidia clementea, n. sp., 2. 



Ascidia, 34; cleavage of, compared 

 with Dolichoglossus and Am- 

 phioxus, 208. 



Ascidians, the, collected by the 

 United States Fisheries Bu- 

 reau Steamer Albatross, 1. 



- — bathvmctric distribution of, 2. 



Ascidiella, 34. 

 obliqua, 35. 



Ascidiidae, 2. 



Assimilative regeneration, 363. 



Asterias, behavior of, 53. 



Asterias glacialis, pedicellariae in, 

 63. 



Astropera, 8. 



Atrial orifice in Benthascidia, 25. 



Autotomy in Ceratium, 360 ; gen- 

 eral occurrence, 361 ; frequency 

 in collections from deep water, 

 .363 ; evidence of, 363 ; regula- 

 tory character of. 364 ; signifi- 

 cance of, 374; relation to spe- 

 cific gravity, 374; to specific 

 surface, 374. 



Balanoglossus, 213-4. 



kowalevskii, period of larval de- 

 velopment, 190; mesoblast of, 

 210. 



Bateson, W., cited, 188, 209-10-11- 

 12. 



Bathyoncns, 29, 30. 



Bathypera, 29, 3u. 

 splendens, 29. 



Behavior, the, of the Starfish As- 

 terias Forreri de Loriol, 53. 



Benthascidia, n. gen., 2, 23 ; afiini- 

 ties of, 29; atrial orifice in, 

 24; brachial sac of, 23, 28; 

 dorsal languets of, 27; clorsal 

 tubercle of, 27; endostyle of, 

 28 ; holdfasts of tentacles, 27 ; 

 n. gen., 23; peduncle of, 26. 



Benthascidia michaelseni, n. sp., 

 2, 24, 29. 



Berenicia, 301. 



(part) Fleming, 307. 



Bering sea, 13. 



Bibliographies, 45, 184, 216, 242, 

 316, 385, 392. 



Biflustra denticulata, 265. 

 lacroixii, 261. 

 tehuelcha, 265. 



Blainville, H. M. de, cited, 316. 



Blastopore, 206, 211. 



Body cavities, middle and posterior 

 of Dolichoglossus pusillus, 208, 

 211; comparison with amphi- 

 oxus, 213; homology of, 215. 



Boltenia bouvetensis, 16. 

 echinata, n. sp., 2, 14, 15. 

 elegans, 16. 



Bowers, G. M., acknowledgment to, 

 239. 



Bradley, J. C, 227. 



Branchial sac of Benthascidia, 28. 



Bryozoa, list of species treated, 

 254. 



Burrow of Dolichoglossus pusillus, 

 189, 195, 198. 



Biitschli, 0., cited, 387. 



Calcareous spicules, 3, 4, 7. 



Castle, W. E., cited, 201. 



CcUeiiora, 257. 



Univ. Calif. Publ. Zool., vol. 4. 



[395] 



