INDEX. 489 
Antedon imparipinna, Carpenter, 46. 
_marginata, Carpenter, 45. 
palmata, Miller, 47. 
parvicirra, Carpenter, 45. 
Savignyi, Miller, 47. 
serripinna, Carpenter, 44. 
Antedonide, 44. 
Anthelia fuliginosa, Lhrenb., 75. 
olauca, hrenb., 75. 
strumosa, Lhrenb., 73. 
Antherochalina quercifolia, Keller, 389, 
395. 
Aplysiidz, mentioned, 9. 
Aplysilla lacunosa, Keller, 390, 396. 
Aplysillide, 290, 359, 390, 396. 
Aplysina inflata, Carter, 374, 382, 391, 
397 ; mentioned, 290, 374, 375. 
enflata, Lendenf., 374. 
mollis, Row*, 376, 391, 397, 400; 
mentioned, 290. 
preetensa, Row *, 374, 391, 397, 399; 
mentioned, 290. 
purpurea, Carter, 377, 391, 397; men- 
tioned, 290, 382. 
purpurea, Dendy, 377. 
reticulata, Lendenf., 375, 391, 397; 
mentioned, 290, 382. 
Apogon annularis, Riipp., 480. 
auritus (Cuv. § Val.), 480. 
variegatus ( Val.), 480. 
Arachnoidea, Moore, mentioned, 241. 
Arachnidium, Hincks, mentioned, 
241. 
Arcania septemspinosa (Faér.), 410. 
Archias sexdentatus, Pauls., 412. 
Archidorididee, 113. 
Archidoris, Bergh, mentioned, 113. 
Arenochalina arabica, Keller, 389, 
395. 
Artacheea clavata, Eliot, 116; mentioned, 
87. 
rubida, Bergh, 116; mentioned, 86, 
118. 
verrucosa, Eliot*, 116; mentioned, 
86, 87. 
Ascaltis canariensis, Haeck., 184. 
compacta, Schuffner, 184. 
Ascetta coriacea, Haeck., 184. 
primordialis, Haeck., 184. 
Aschoriza, Fewkes, mentioned, 240. 
Ascopodaria gracilis, Kirkp., 251. 
Ascothamnion intricata, Avutz., mentioned, 
244, 
trinitatis, Sond., mentioned, 244. 
Asellidee, 224. 
Asellota, 224. 
Asellus, Geoffroy, mentioned, 224. 
Asexual Organs in the Isle of Man Algeze, 
403, 
Asteronotus, Bergh, mentioned, 113. 
Asteronotus, Zhrenb., 114; mentioned, 
114, 116. 
cespitosus, von Hasselt, 114; men- 
tioned, 116. 
Hemprichi, Ehrenb., 114, 116; men- 
tioned, 87. 
Mabilla, Bergh, 114. 
Asterropteryx semipunctatus, Riipp., 483. 
Astromonaxonellida, 288. 
Astrophora, Deeke, 288; mentioned, 287, 
288. 
Astrotetraxonida, 288, 289, 292, 293, 304, 
385, 393. 
Atelecyclide, summary, 417. 
Atergatis, de Haan, 443. 
Jloridus (Linn.), 413. 
granulatus, de Man, 413. 
oeyroé (Herbst), 413. 
roseus (Riipp.) de Haan, 443 ; distrib., 
413, 421. 
Athecata, 81. 
Atherina pinguis, Lacép., 482. 
Atherinide, 482. 
Aulocystis grayi, Bowerb., 292, 380, 393. 
zitteli, Marsh § Mayer, 292, 385, 398 ; 
mentioned, 582. 
Avenella, Daizell, mentioned, 238, 240. 
Aviculidee, 285. 
Avrainvillea lacerata, J. Ag., 77. 
f. robustior, Burt., 402. 
f. typica, Part., 402. 
papuana, G. Murr. § Boodle, 77. 
Axifera, 75. 
Axinella donnant, Dendy, 357. 
pumila, Keller, 389, 396. 
Axinellidee, 290, 354, 390, 396; mentioned, 
329. 
Axinissa = seq. 
Axinyssa, Lendenf., mentioned, 332. 
gravieri, Topsent, 390, 396. 
Axosuberites fauroti,  Topsent, 386, 
398. 
