508 



THE VOYAGE OF H.M.S. CHALLENGER. 



Eurelo simplicinahna, Semper, 298. 



Euretitlie, 12, 289, 391 ; distiihutioii, 438 ; phylogeny, 



193. 

 Euryple<jma, n. gen., 176, 380. 



„ auriculare, n. sp., 176, 380, 490 (PI. 



cii.). 

 Eversion of cup of Etwijplegma, 169. 

 Farre, Dr. A., Farrea, 266. 

 Farrid, Bowerbank, 266, 276, 390. 

 ,, aculeafa, Bowerbank, 271, 274. 

 „ davigem, n. sp. 287, 391 (PI. Ixxv.). 

 „ densa, Carter, 270. 

 „ facimda, 0. Schmidt, 268, 275. 

 ,, fistiilata, Bowerbank, 271, 272. 

 „ gassioti, Bowerbank, 271. 

 ,, haeckelii, 276. 

 „ inermis, Bowerbank, 271, 274. 

 „ infundibidiforinis, Carter, 270. 

 ,, iiTegidaris, Bowerbank, 271, 374. 

 „ Ixvis, Bowerbank, 271, 272. 



occa (Bwk.), Carter, 277, 390 (Pis. Ixxi., 

 Ixxii., Ixxiii., Ixxvi.). 

 „ parasitica, Bwk., 271, 273. 

 ,, perannata, Bowerbank, 271, 274. 

 „ pocillum, Bowerbank, 271. 

 „ solladi, n. sp., 281, 286, 391 (PI. Ixxiv.). 

 „ sp. (?), 288 (PL Lxxvi.). 

 ,, "pini/era, 271, 273. 

 „ spinosissima, Bowerbank, 271, 273. 

 ,, spinulenta, Bowerbank, 271, 273. 

 ,, robusta, Bowerbank, 271, 274. 

 ,, iuhulata, 272. 

 ,, valida, Bowerbank, 271, 273. 

 „ msmaeri, n. sp., 281, 286, 391 (PI. Jxxiv.). 

 Farreidse, 266 ; distribution, 438. 

 Fieldingia, Sav. Kent, 335, 401. 



„ lagettoides, Sav. Kent, 335 (PI. xcvii.). 



Fiji Islands, Txgeria, 94, 369. 



Filhol, H., 17; Asconema, 116; bathymetrical dis- 

 tribution, 454; divergent results, 433; Euplec- 

 tella suherea, 76; Pheronema, 239; flagellum, 

 23. 

 Flesb spicules, 10. 

 Floricome, 32, 48, 170. 



Florida, AphrocalUgtes, 395; Sympiagdla, 372. 

 Form and structure, 19. 

 Fossil Euplectellids, 63. 

 I'rance, AphrocalHstes, 395. 

 Gastralia, 44, 49. 

 Gastral cone, Hyalonema, 189. 



Gastral membrane, 19, 47. 

 pores, 47. 



septa, Hjialonema sieboldii, 191. 

 Gemmul.'e, 60. 

 Genealogical tree, 495, 499. 

 General structure, 19. 

 Genital products, 24. 

 Geograpliical di.stributiou, 420. 

 Gibraltar, Eupilcddla, 76, 366 ; Ros.:<dla, 143, 375. 

 Glossary, 47. 

 Glassrope, 202. 

 Granules, 24. 

 Graphiohexasters, 31, 48. 



Gray, 6, 56 ; AphrocalHstes bvatrix, 305 ; Asmnenia, 

 114; Crateromorphida>, 160; Dactylocalycidw, 

 343, 346 ; Eup)ledella, 55, 57 ; Hyalonema, 

 181, 184, 185; Labaria hemisphserica, 237; 

 Meyerella dariformis = Semperella, 260; 

 Myliusia, 352; Pheronemadse, 237; Pohjloplnis, 

 132, 133; Rossella, 136; Sympagella, 119. 

 CIrenada, Eupledella, 77 ; Hyalonema kentii, 207. 

 Guadeloupe, Hyalonema toxeres, 207. 

 Habi-odidyum, Wyv. Thomson, 99, 370. 



„ sjieciosiim, Quoy and Gaimard, 99, 370. 



Haeckel, spicules, 499. 

 Hansen, A., Hyalonema arctieum, 188. 

 Havana, Margaritella, 404. 

 Herklots and Marshall, Eupledella, 56. 

 Hertwigia, 0. Schmidt, 109, 371. 



„ faldfera, O. Schmidt, 62, 109. 371, 491. 

 „ faldformis, 16. 

 Heterotetla, 101. 

 HexactinelUda — origin of term, 5. 51, 365; List of, 



480. 

 Hexadinella, Carter, 327 ; hi.story, 327, 328, 398. 

 lata, n. sp., 229, 399 (Pis. xciv., xcv.). 

 fubulosa, n. sp., 328, 398 (PI. xciii.). 

 ventilahrum. Carter, 331 (PI. xcvi.). 



„ Carter ( = Tre.todidyum 



cyathus), 328, 399. 

 Hexacts, 29 ; irregular, 32 ; regular. 48 : nodular, 



119. ^ 



Hexasterida, phylogeny, 492. 

 HexasieropJiora, 51, 365. 



Higgin, Eujyleddla, 58 ; Hyalonema cebuense, 186, 

 228 ; Labaria hemisphxrica, 238. 

 ,, Fheronema hemisplixrirmn, 247. 

 Hinde, G. J., 18. 

 Histology, 23. 

 History of work, 1 ; of Hexactinellida, 5. 



