( 420 



IXDEX TO REPORT, PART L, ON THE IRISH DIATOMACE^. 



Tlie Families, Sub-families, and Genera are printed in Small Capitals, the Species 

 in ordinary type. Synonyms are marhed with an asterisk. 



abnipta, 293. 

 AcHLA2jniI.T3, 337. 

 adciilaiis, 304. 



ACTINOCYCLUS, 268. 



AxTixoPTYCHrs, 266. 

 acrosphoeria, 346. 

 acuminata, 355. 

 aeiita, 407. 

 acuta,* 282. 

 aciitiiisciila, 408. 

 aclriaticmn, 319. 

 asqualis, 282. 

 EBstiva, 384. 

 affinis (Syn.), 311. 

 affinis (Nav.), 367. 

 affinis,* 367. 

 alpina, 342. 

 altemans, 278. 

 ambigiia, 360. 

 aniblyoceros, 278. 

 americana, 351. 

 ampliiceplLala, 299. 

 ampMceros, 295. 

 amphigomplius, 367. 

 AMPHirLEiJii.4, 281, 320. 

 Aaiphipletjiiejk, 320. 

 ampMrhynchns, 307. 

 amphisbajna, 303. 

 Amphitetras, 275. 

 anglica, 414. 

 anglicus, 270. 

 angulosa, 364. 

 angiista, 350. 

 angiistata, 415. 

 anomalmn, 287. 

 antediluviana, 275. 

 antiqua, 257. 

 apiculata (Mast.), 327. 

 apieulata (Nav.), 349. 

 apicnlata,* 376, 416. 

 apis, 400. 



Arachxoidiscts, 265. 

 archeriana, 398. 

 arcnatuin, 318. 

 arcus, 311. 



areuaria (Orth.), 251. 

 arenaria (^^av.), 411. 

 areolata, 268. 

 argns, 260. 

 arraniensis, 395. 



ASTEIIIOXELLA, 281. 



atnios2>lierica,* 259. 

 AuLAcoDiscrs, 270. 



AuLACOSEIILi.* 254. 



AuLiscrs, 270. 

 aiu'ea,* 283. 

 aiuichalcia, 251. 

 amita, 274. 



bacillum, 351. 

 bacnlns, 297. 

 bayleyii, 275. 

 balfomiana, 316. 

 barbatula, 310. 

 barkeriana, 362. 

 Beekeleya, 331. 

 biceps, 302. 

 biceps,* 352. 

 biccapitata, 352. 

 BiDurLPHiA, 272. 

 biddulpbia,* 275. 

 biddulphiamun,* 275. 



ElDDULPHIE-'E, 271. 



binodis, 416. 

 boeckii (Breb.), 338. 

 boeckii (Xav.), 348. 

 bombus, 401. 

 borealis, 345. 

 boiTeiii, 246. 

 Brebissoxia, 337. 

 brebissonii, 350. 



