.MANN DIATOMS "1 I III- ALBATROSS VOYAGES. 389 



of these forms, for Leuduger-Forl rel's 'Ira win-- in this work are oof v< i . 



but the drawings, judged in the lighl of the descriptions, are certainly nol all of one 

 species, and, so faras it is possible i" make out, none of them belong here. 

 Found ai station 2920H, Hawaiian [slands 



Campylodiscus noncus Ehrenb. Ber. \ka-l. Wiss. Berl. 1840: 205. 1841; 1845: 

 I.-)!. 1846. Rabh Hedwigia 1: 52. pi. ■ 354. Ktttz. Bacill. 59. : 



ed. 3. 799. L861. Grun. Verh. Zool. B I «... Wien 12: 138. pi. 10. f. ... 

 Schmidt, Atlas pi L877 II I Smith, Sp. Diat. Typ. no. 64. 1874. 



Beur. Synop. pi • l >x l Str — Bacillarienlager I:'., pi. l. f. 



L884. Pant. Beitr. Bacill. Ung. 3: pi. /.../'. U5. L893. I>. Toni, Syll. Alg. 2: 

 627. L892 

 Campylod s Ehrenb. Ber. Akad. ^'ir-~. Berl. 1845: L54. L846; Mikr< IL :. 



pi. ISA ■ L854. Pritch. Hist. Infus. ed. L 799. pi. 561. Schmidt, 



Atlas pi. 55. f. 9 16. L877. Van. Beur. Synop. L90. pi L881. Grun. 



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

 Campylodiscus costatus W. Smith, Ann. Mag. Nai. lh~t. II. 7: 6. pi. l.f. 1. L851; 

 Synop. Brit. Diat. 1: 29. pi. 6./. 52. L853. Griff. & II- in. Micr. Diet. • I 

 pi. 12. f. 16. L875. Grun. Verh. Zool. Bot. <;<■>. Wien 12: 439. pi. 10. f. - . 

 Bedwigia 2: l".). pi. S.j. 

 5 irella norica Kutz.; Brun. Diat. Alp. L01. pi. l.f. 16-17; pi. 9. f. SO. L880 

 Grunow claims thai ( Ehrenb. can !><■ provisionally held separate from 



C.hih nu s Ehrenb. because of its more numerous and more delicate ribs. This i.- 

 hardly to 1"' conceded. < >n tin- Bame basis the specimens I have found could !>«• 

 constituted a separate species. They correspond < - 1 * . - « • 1 \ to Pantocsek's figured in 

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

 narrowing to a thread ai the center; and especially in all reaching the center, bo thai 

 the central hyaline .-pare, like an obscure square, i> obliterated. 

 Found ai station 3635H, Bering Sea. 



Campylodiscus taeniatus Schmidt, Atlas />/. 16. f. :. L875; pl.Sl.f. 1. 1^77 De 



Toni, Syll. Alg. 2: 623. L892. 



Two varieties, even more contrasted than those figured by Schmidt, were found by 

 me; the firsl without a prominenl row of beads bordering the inner line of the firsl 

 ring of costae, from station 3698, and the second with such a row, two beads toeach 

 costa, from station 2920H. 



Foil n<l at >t at l- ■ii~ 3698 and L'itL'olI. <>t't' Bonshu I -land. Japan, ami Hawaiian Islands. 



XANTHIOPYXIS Ehrenb. 



Xanthiopyris Ehrenb. Ber. Akad. Wiss. Berl. 1844: 273. L845; Mikrog. pi. SS. X VII. 

 f. 17. L854. 



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

 if nol wholly, of internal cases from tin' frustules of Chaetoceros. It i> placed here 

 merely to enable the reader n> trace the following widely figured form, as it occurs 

 abundantly in the hydrographic soundings mentioned. 



Xanthiopyxis oblonga Ehrenb. Mikrog. pi. SS. XVII. f. 17. L854. ( leve, Journ. 

 '.. Micr. Club II. 2: 177). P l. /.;./'. 18. L88( 

 Lithostylidium hirtum Ehrenb. Mikrog. pi. 34. VII. f. 

 Xanthiopyxis pandi - Pant. Beitr. Bacill. Ung. 1: 13. ,■' 



Found at station I029H, Bering S 



hmidt, Atlas /</. 55 377. 



b Tani. Beitr. Bacill. LTng. 3: pi. L893. 



