

.MANN DIATOMS OF THE ALBATEOSS VOYAGES. 389 



nf llu'ise forms, for Leuduger-Fortmorel's drawings in this work arc not very accurate; 

 l)Ut tho drawings, judged in tlie light of the descriptions, are certainly not all of one 

 speciop, and, so faras it is possible to make out, jiohe of them belong here. 

 Found at station 2920H, Hawaiian Islands. 



Campylodiscus noricus Ehrenb. Ber. Akad. AViss. Berl. 1840: 205. 1841; 1845: 

 154. 184G. Ral)h. Iledwigia 1: 52. pi. D.J. 2. 1854. Kiitz. Bacill. 59. 1844. 

 ed. 3. 799. 1861. Grun. Verh. Zool. IJol. fJcs. \\-ien 12: 438. pJ. 10. J. 4, 5. 1862. 

 Scluuidt, Allans pi. 55. f. S. 1877. H. L. Smilh, Sp. Dial. Typ. no. 04. 1874. Van 

 Jleur. Synop. pi. 77. /. -^-6. 1881. Slrose, Bacillarienlager 13. pi. 1. f. 30. 

 1884. Pant. Beitr. liacill. Ung. 3: pi. 14. f. 215. 1893. Dc Toni, Syll. Alg, 2: 



627. 1892. 

 CanipyJodiscus hibcrnicut^ Ehrenb. Ber. Akad. Wiss. Berl. 1845: 154. 1846; Mikrog. 

 /)/. 15 A./. 9. 1854. Pritch. Hist. Infus. ed. 4. 799. pi 4.f. S8. 1861. Schmidt, 

 \{\'is pi . 55 . f . 9-lC>. 1877. Van. Heiir. «ynop. 190. pJ. 77./. .?. 1881. Grun. 



Verh. Zool. Bot. Ges. Wien 12: 439. 1862. 

 Campylodiscus aKlatug W. Smith, Ann. ^Mag. Xat. Hist. II. 7: 6. pi. l.f. 1. 1851; 



Synop. Brit. Diat. 1: 29. pi. 6./. 52. 1853. Griff. & Ilenf. Mur. Diet. ed. 3. 



pi. 12. J. 16. 1875. Grun. Verh. Zool. Hoi. Ges. Wien 12: 439. pi. 10. f. 6. 1S62. 



Hedwigia 2: 29. pi 5./. 1^2. 1860. 

 Siirirella norica Khtz.; I5rnn. Diat. Alp. JOl. pi l.f. 16-17: pi 9.f. 30. 1880. 



Grnnowi claims that C. noricus Ehrenb. can be l)roYi^ionally held separate from 

 C. hibernicus Ehrenb. because of its more numerous and more delicate ribs. This is 

 hardly to be conceded. On tho same l)asis th(> specimens I have found could be 

 constituted a separatf^ species. They corrcspniul closely to Pantocsek's figure^ in 

 luiving the costae delicately striated with soft, wavy lines, broad at the margin and 

 narrowing to a thread at the center; and especially in all reaching the center, so that 

 tlie central hyaline spac(% like an obscure square, is obliterated. 



Found at station 3G351I, leering Sea. 



Campylodiscus taeniatus Schmidt, Atlas pi. lf>.f. J, 1875; pL oLf. 1. 1877. Dc 



Toni, Syll. Alg. 2: 623. 1892. 



Two varieties, even more contrasted xhixu (hose figured by Swhmidt, were found by 

 me; the first \vitho\it a prominent row of beatls bordering the inner line of the first 

 ring of costae, from station 3()98, and the second with such a row, two beads to each 



costa, from station 202011. 



Found at stations 3098 and 292011, off limishu Island, Japan, and Hawaiian Islands. 



XANTHIOPYXIS Ehrenb. 



Xanthiopyxis Ehrenb. Ber. Akad. Wiss. Berl. 1844: 273. 1815; :Mikrog. pL SS., X VII. 



J, 11. 1854. 

 As was stated under Chaetoceros, this genus is invalid, being made up principally, 

 if not wholly, of internal cases from the frustuh^s of Chaetoceros. It is placed here 

 merely to enable the reader to trace the ftdluwing widely figured form, a^ it occurs 

 abundantly in the hydrographic soundings mentioned. 



Xanthiopyxis oblonga Ehrenb. Mikrog. pi. 33. XVII, f. 17. 1854. Cleve, Jnurri. 

 Quck. Micr. Club II. 2: 175. pi. 13 J. IS, 1885, 

 Lithostylidium hirtum Ehrenb. Mikrog. pi. 34- VILJ, 15. 1854. 

 XantJdopyxis pandurifonnis Pant. Beitr. Bacill. Ung. 1: 43. pi. 29. f. 7. 188(>. 



Found at station 4029II, lUring Sea- 



« Schmidt, Atlas pL 55./. if W. 1877. 



^Pant. Beitr. BaciB. Ung. 3: pi. 14- /• 215. 1893. 



