note * page 454 Name preoccupied by Ehrenberg in 1838.

note * page 455 In the collection of Dr F. W. Griffin.

note † page 455 In the collection of Dr Greville.

note ‡ page 455 Preoccupied by Grunow in 1884, for what he regarded a doubtful var. of C. oculus-iridis

note * page 458 In the collection of Dr Greville.

note * page 460 Name preoccupied by Grunow.

note * page 461 ἀντίμιμοσ; imitating.

note * page 462 To the specimens figured in Janisch's Gazelle Expedition plates, which, though still unpublished, have had considerable private circulation, the following names have, according to Herr E. Weissflog, been given by Janisch, namely :—PI. I. figs. 1–5, Stoschia admirabilis, C. Jan., gen. et sp. n. PI. II. fig. 1, Coscinodisam gigas? var. ; figs. 4, 5, C. nodulifer, A.S. sp. n. PI. III. fig. 2, C. africanus, C. Jan., sp. n.; fig. 4, C. praetextus, C. Jan., sp, n.; fig. 6, C. tumidus, C. Jan., sp. n. PI. IV. figs. 1, 2, C. lentiginosus, C. Jan., sp. n.; figs. 3, 5, C. arafuraensis. PI. V. figs. 2, 3, C. gyratus, C. Jan., sp. n.; fig. 6, C. atlanticus, Grun.; fig. 7, C. lentiginosus, C. Jan., sp. n. PI. VI. fig. 12, C. bulatus, C. Jan., sp. n. ; fig. 13, C. nobilis, Grun.

note † page 462 In the collection of Julien Deby.

note * page 463 In the collection of Julien Deby.

note † page 463 In the collection of Dr Greville.

note ††page 463 Collected during the Expedition of the “Novara.”

note * page 464 Melosira angulata, Greg,” fide Grun., ibid., 1884, p. 85.Google Scholar

note* page 467 In the collections of Julien Deby and of Prof. Cleve.

note* page 468 In the collection of Julien Deby.

note † page 468 In the collection of Dr Greville.

note * page 470 In the collection of Dr Greville.

note † page 470 ῄφραστος, unexpected

note * page 470 This applies to specimens hitherto named Endietya.

note † page 470 Specimen not typical.

note * page 471 In the collection of Julien Deby.

note * page 471 In the collection of Dr Griffin

note * page 472 In the collection of Dr Greville

note * page 472 In a slide prepared by Mr Norma

note * page 473 In the collection of Dr Greville.

note † page 473 In the collection of Julien Deby.

note * page 475 In the collection of Julien Deby.

note * page 479 In the collection of Dr Greville.

note † page 479 In the collection of Dr F. W. Griffin.

note ‡ page 479 In the collection of Julien Deby.

note § page 479 This specimen has, on what seems to me insufficient grounds, been named on Weissflog's slide C. nitidus, var. by Grunow.

note ║ page 479 In the collection of Dr Greville.

note * page 480 In the collection of Julien Deby.

note * page 486 In the collection of Dr Greville.

note † page 486 In the collection of Julien Deby.

note † page 487 Ibid.

note * page 488 In the collection of Dr F. W. Griffin.

note † page 488 In H. L. Sm. Diat. Spec. Typ., No. 93.

note ‡ page 488 In the collection of Dr Greville.

note * page 492 In the collection of F. "W. Griffin. Mr Grove remarks that he has never seen this species in the Oamara deposit, and greatly doubts its presence there, it being a form which may easily adhere to tubes and beakers.

note * page 493 Nornina nuda, probably identical with S. tetras, S. pentas, S. hexas.

note † page 493 In the collection of Julieii Deby.

note * page 495 In the collections of Dr Greville and B. Grove.

note * page 495 Specimens procured by the second German North Polar Expedition.

note * page 496 Found in various localities in United States in 1850. Its presence, with other brackish or salt water species in the rice fields, has been held to pdicate the presence of salt water much further up the river formerly than at present.

note † page 496 In the collection of Dr F. W. Griffin.

note ‡ page 496 In the collection of Julien Deby.

note § page 496 In the collection of Dr Greville.

note * page 500 Not C. fasciculatus, O'Me, ., Quart. Jour. Micr. Sci., 1867, p. 245, pl. vii. fig. 1.Google Scholar

note † page 500 In the collection of Dr Greville.

note * page 502 This diluvial formation was discovered by Roth.

note † page 502 In the collection of Dr Greville.

note ‡ page 502 In the collection of Dr F. W. Griffin.

note § page 502 In the collection of Julien Deby.

note ║ page 502 In the collection of Dr Greville.

note ¶ page 502 Rare, amongst abundance of C. subtilis.

note * page 504 In the collection of Dr Griffin, and procured in the original sample sent to Firth by Kitton.

note * page 507 Name preoccupied by Gregory for a different species.

note* page 508 In the collection of Dr Greville.

note † page 508 Mon. Ber. Ak., 1861, p. 280.Google Scholar

note ‡ page 508 Abh. Ber Ak., 1872, p. 263.Google Scholar

note * page 509 Quoted “C. fimbriato-liinbatus,” by Grunow, , Denk. Wien. Ah, 1884, p. 72Google Scholar

note * page 510 Quoted “C. fimbriatus, Sch. [nee. Ehrb.)” by Grunow, ibid., p. 72.

note † page 510 Grunow (Denk. Wien. Ak., 1864, p. 72) refers to this simply as C. subconcavus, Grun., and proposes to name it C. marginatus, var. subconcava, or better, to unite it to C. robustus, Grev., the markings towards the centre being 2, towards the border 3½ to 3J in ·01 mm. The central papillæ are prominent, as in C. robustus.

note ‡ page 510 In the collection of Julien Deby.

note § page 510 In the collection of E. O'Meara.

note ║ page 510 In the collection of Dr Griffin.

note * page 511 In the collection of Dr Greville.

note * page 513 In the collection of Julien Deby.

note * page 517 In the collection of Julien Deby.

note † page 517 In the collection of Dr Greville.

note * page 519 In the collection of Julien Deby.

note † page 519 In the collection of Dr Greville.

note * page 522 In the collection of Dr Greville.

note * page 523 In the collection of Dr Graville.

note * page 524 In the collection of Herr E. Weissflog.

note † page 524 In the collection of Julien Deby.

note * page 526 Quoted “C. deerescens, var.?” by Grunow (Derik. Wien. Ah., 1884, p. 80).

note † page 526 In the collection of Julien Deby.

note ‡ page 526 In a Coscinodiscus type-plate by Thum, in the collection of Julien Deby.

note * page 528 In the collection of Dr Greville.

note * page 529 In the collection of Julien Deby.

note * page 530 In the collection of Dr Greville.

note † page 530 In the collection of Julien Deby.

note * page 532 In the collection of Dr Greyille.

note * page 533 In the collection of Dr Greville.

note † page 533 In the collection of Dr F. W. Griffin.

note ‡ page 533 In the collection of Julien Deby.

note * page 536 Collected by Dr Kjellman.

note * page 537 In the collection of Herr E. Weissflog.

note † page 537 In the collection of Dr Greville.

note ‡ page 537 J In the collection of Dr F. W. Griffin.

note § page 537 In the collection of Julien Deby.

note * page 539 Fide Ehrenber.

note * page 541 In the collection of Julien Deby.

note * page 543 In the collection of Dr Greville.

note † page 543 In the collection of Dr F. W. Griffin.

note †† page 543 H. L. Smith, Diat. Spec. Typ., No. 91.

note * page 544 Fide A. Schmidt.

note * page 546 In the collection of E. Grove.

note † page 546 t This also occurs in C. rex.

note * page 547 In the collection of Dr Greville.

note * page 550 As to this locality, Eulenstein notes— “Locus dubius, verisimiliter ad pagum hujus nominis Americse borealis non ad insulas referendus.”

note † page 550 In the collection of Dr Griffin.

note * page 551 In the collection of Julien Deby.

note * page 552 Name preoccupied by Cleve (Kongl. Sv. Vct.-Ak. Handl. Stoekh., 1881, No. 5, p. 20).

note * page 555 In the collection of Dr Greville.

note † page 555 This is C. radiatus, Ehrb.

note †† page 555 This is probablly C. subtilis, as stated by Grunow.

note § page 555 This is C. asteromphalus, var. hybrida, Grun.

note * page 556 In the collection of Dr Greville.

note † page 556 In the collection of Dr Griffin.

note †† page 556 In the collection of Julien Deby.

note * page 559 In the collection of Dr F. W. Griffin.

note † page 559 In the collection of Julien Deby.

note * page 562 Dedicated to Edmund Grove, Esq., F.R.M.S., the well-known investigator of the Oamaru deposit, New Zealand.

note * page 565 In the collection of Dr Grevillo.

note † page 565 θεσκελοσ wonderful.

note * page 569 In the collection of Dr F. W. Griffin.

note * page 570 In a Cosciiwdisms Type-plate by Thum, in the collection of Julien Deby.

note † page 570 In the collection of Dr Greville.

note † page 570 In the collection of Julien Deby.

note * page 571 In the collection of Dr Greville.

note † page 571 Diat., Nos. 215, 216.

note * page 573 Dedicated to Mr Moss of Lancaster, the friend and fellow worker of Mr Johnson.

note † page 573 In the collection of Dr Greville.

note * page 574 Fide Ehrenberg.

note * page 575 ἀπαγὴς, loose in texture.

note * page 576 περίκομψος, very elegant. The specific name elegans is preoccupied (q. v.).

note * page 577 In the collection of Mr Julien Deby.

note * page 578 ἀγαπητὸς, lovely.

note * page 581 In the collection of W. Smith.

note * page 585 In the collection of Julien Debey.

note * page 588 Named in honour of W. J. Gray, Esq., M.D.

note * page 589 Dedicated to Prof. A. Koch of Klausenburg.

note * page 591 The name C. armatus has been preoccupied by Greville (Trans. Micr. Soc. Lond., 1861, p. 42, pi. iv. fig. 5) for a distinct form, and must be abandoned.

note †page 591 Dedicated to Prof. L. Mártonfi of Számos-Ujvár.

note * page 595 In the collection of Dr Greville.

note * page 596 Named in honour of Mr Louis Deby.

note † page 596 πολνῤῥαπτος, embroidered.

note * page 597 In the collection of Julien Deby.

note * page 598 In the collection of Dr F. W. Griffin.

note † page 598 Forwarded by Professor H. L. Smith. According to Dr Griffin, the boring also contained Coscinodiscus excavatus var. genuina, and C. excavatus var. quadriocellata.

note ‡ page 598 In the collection of Dr F. W. Griffin.

§ page 598 In the collection of Dr Greville.

note ║ page 598 In the collection of Mr Julien Dely.

note * page 608 With respect to C. Febigerii, Mr E. Grove informs me that there is no doubt as to its identity with C. excavatus, and that Prof. W. H. Smith himself has admitted this.

note † page 608 According to Mr Grove, C. Challengeri is probably identical with C. Gazelœ.

note * page 328 In the collection of Mr Julien Deby.

note * page 633 Communicated by MrFrederick Kitton.

note * page 639 In the collection of Mr Julien Dely.

note * page 642 In the collection of Dr K. K. Greville.

note † page 642 In a type slide of material from this locality prepared by Herr Thum.

note * page 644 The name eximia : cannot be adopted, as it has been preoccupied by Greville (Trans. Micr. Soc. Lond., 1865, p. 99) for a distinct form (see infra).

note * page 649 This species is established on two specimens occurring in a photograph now in the possession of Mr Julien Deby, the history of which is given in a letter addressed to him by Herr E. Weissflog dated 27th July 1878. Herr Weissflog says:—“I have received a letter from Mr F. Habirshaw of New York, in which he says—‘The late John E. Gavit … engraved the fine plate in Bailey's “New Species,” &c. (Smith's Contrib.). He also some years ago made a plate which suddenly disappeared—neither plate nor impressions could be found. In overhauling the effects of Judge Johnson (of Asterodiscus in Silliman's Jour.) two impressions were found, and it is believed that they are the only two extant. A few days since we photographed the one sent us, and we hope that you will be pleased with the result. If there are more wanted, I would like MM. Deby and Delogne to have copies.’ Herewith you will find two proofs, and you will oblige much by remitting one to M. Delogne.” Nothing further is known of the specimens. They seem, however, to come from the Barbados deposit.

note * page 655 In the collection of Mr Julien Deby.

note * page 656 In the collection of Dr R. K. GreYille.

note * page 658 In the collection of Dr R. K. Greville.

note † page 658 Named in honour of Lieut. Brooke of the U. S. Navy.

note * page 659 In the collection of Dr R. K. Greville.

note * page 660 In the collection of Dr R. K. Greville.

note * page 661 In the collection of Mr Julien Deby.

note * page 664 In the collection of Dr R. K. Greville.

note † page 664 In the collection of Mr Julien Deby.