424 
THE VOYAGE OF H.M.S. CHALLENGEE. 
Cynthia mytilig&ra, 414. 
„ pallida, 405, 406. 
„ pallida, var. hillitonensis, 406. 
„ papietensis, 405, 406. 
Cynthiid®, 13, 32, 323, 324, 346, 384, 396, 397, 
398, 399, 401, 403, 405, 407. 
Cynthinje, 388, 403, 405. 
Cystodytes, 70, 71, 72, 127, 135, 136, 271, 289, 294, 
382, 393, 394, 395. 
„ cretaceus, 135, 136. 
„ dellechiaix, 135, 136. 
„ draschii, 70, 135, 136, 137, 141, 142, 143, 
352, 358, 363, 367, 372, 374, 378, 386 
(PL xix.). 
„ durus, 136. 
„ philippinensis, 135, 136, 140, 355, 360, 363, 
367, 372, 375 (PI. xx.). 
Della VaUe, 7, 25, 31, 33, 35, 36, 38, 61, 62, 89, 
126, 127, 130, 131, 135, 136, 215, 255. 
Delle Chiaje, 6, 35, 61, 62. 
Deposits on bottom, 379. 
Development of Colella pedunculata, 90. 
Development of Colella thomsoni, 101. 
Diatoms, 162, 249. 
Diazona, 29, 31, 32, 70, 72, 392, 393, 398. 
Didemnidse, 14, 17, 22, 23, 25, 30, 31, 51, 121, 127, 
253, 254, 255, 256, 257, 258, 259, 260, 262, 
266, 267, 273, 292, 307, 308, 309, 317, 364, 
366, 370, 373, 374, 375, 384, 385, 388, 389, 
393, 394, 395, 396, 399. 
Didemniens, 6, 15, 17, 30, 254, 257. 
Didemnoides, 258, 259, 266, 267. 
„ macroophorum, 274. 
Didemnum, 29, 254, 256, 257, 258, 259, 260, 261, 
266, 267, 286, 313, 317, 393, 395. 
„ aurantiacum, 261, 264, 306, 354, 359, 
364, 368, 373, 376, 384, 386 (PI. xxxiii. 
figs. 1-8). 
„ candidum, 256. 
„ gelatinosum, 6, 314. 
,, inarmatum, 260, 266, 308. 
„ inerme, 260, 261, 265, 308, 351, 357, 364, 
368, 373, 376 (PI. xxxiv. figs. 6-7). 
„ savignii, 19, 23, 261, 262, 364, 368, 373, 
377, 384 ( PI. xxxiv. figs. 1-5). 
,, styliferum, 91, 92, 127. 
,, tf/rtuosum, 255, 260, 266, 308. 
„ viscosum, 256. 
Diphasia rosacea, 58. 
Diplosoma, 6, 15, 309, 313, 393, 396. 
Diplosoma carnosum, 314. 
,, chamoeleon, 314. 
„ crystallinum, 314. 
„ macdonaldi, 314, 315, 352, 358, 365, 369, 
373, 376 ( PI. xlii. figs. 1-4). 
,, pseudoleptocUnum, 308, 310, 384. 
„ rayneri, 307, 309, 314. 
,, spongiforme, 313, 314. 
Diplosomidffi, 17, 25, 30, 31, 256, 257, 307, 308, 309, 
312, 365, 366, 370, 373, 374, 384, 388, 389, 
393, 395, 396. 
Diplosomoides, 267 (where it is a misprint for 
■Didemnoides), 309, 384, 393, 396. 
„ molle, 308, 310, 316, 355, 360, 365, 
369, 373, 376 (PI. xlii. figs. 5-16). 
Distaplia, 31, 70, 71, 72, 73, 89, 124, 126, 127, 
128, 210, 381, 382, 393, 394. 
„ luhrica, 127, 128, 130. 
,, magnilarva, 127, 128, 130, 131, 132. 
„ rosea, 127, 128, 130, 131, 132, 198. 
„ vallii, 15, 18, 127, 128, 131, 132, 355, 360, 
363, 367, 371, 375, 382, 386 (PI. xviii. 
figs. 1, 2, 4-6). 
Distoma, 29, 32, 70, 71, 72, 127, 135, 393, 394, 395. 
„ adriaticum, 71, 133. 
„ crystallina, 70. 
„ mucosa, 71. 
Distomidm, 17, 18, 22, 23, 30, 31, 69, 72, 73, 127, 
133, 134, 135, 144, 145, 148, 189, 191, 192, 
198, 254, 317, 330, 363, 366, 369, 371, 374, 
381, 383, 384, 385, 387, 388, 389, 390, 392, 
393, 394, 395, 396, 397, 398, 399. 
Distomus, 5, 29, 135. 
Doliolidse, 387. 
Doliolum, 52. 
Dorsal lamina, 19, 34, 44, 85, 98. 
Dorsal languets, 19, 86. 
Dorsal tubercle, 20, 87, 99. 
Ecteinascidia, 32, 161, 325, 388, 389, 396, 
Embryonic blastogenesis, 30, 255. 
Endocarps, 326. 
Endostyle, 19, 44, 98, 85. 
Enteron, 60. 
Eucoelium, 29, 256, 257, 258, 259, 260, 393, 395. 
„ hospitiolum, 255, 256, 259. 
,, parasiticum, 259. 
Europe, 36. 
F^roe Channel, 53, 56, 57, 58, 62, 63, 282, 283, 386. 
Falkland Islands, 76, 104, 226, 327, 336, 357, 386. 
Fiji Islands, 406. 
