

MANN— DIATOMS OF THE ALBATKOSS VOYAGES. 255 



Coscinodiscus nobiKs Grun. Journ. Roy. Micr. Soc. 2: G87. pi. 21. f. 1. 1879. Jan. 

 Diat. Gaz. Exped. pi. 6.f. 13, pl.^.f. 6, unnamed. « De Toni, Syll. Alg. 2: V2m 

 1894. Halt. Proc. Roy. Soc. Edinb. 16: 545. 1889. 



Coscinodiscus rcgius Wall, in Schneider, B(>itr. Kennt. Kauk. 27. 1878, Journ. 

 Roy. Micr. Soc. 2: G87. 1879. 



This large and extremely delicate species is close to C. fulgumlis Rrun,^ and to C. 

 diorama Schmidt; c the chief mark of distinction being the far more rapid increase of 

 the areolation from the center outward, and the consequently mure robust size of the 

 n(;twork in the last-named forms. 



Found at stations 2882, 2919, 2923, 2929, 3346, 3712H, 401411, off Oregon, strnthern 

 California, Washington, Okhotsk Sea, and Honshu Island, Japan. 



V 



Coscinodiscus noduUfer Schmidt, Atlas pi. 59. f. 20^23. 1878. Jan. Dial. Gaz 

 Exped. pi. 2. f. 4-5. WoUe, Diat. N. A. pi 94./. 7. 1890. Ratt, Proc. Roy 

 Soc. Edinb. 16: 520. 1889. De Toni, Syll. Alg. 2: 1249. 1894. Cleve & Moll, tvpe 

 no. 57, 155. 



Coscinodiscus radlaUis Ehrenb. err. d(^t, II. T.. Smith, Sp. Diat. Typ. no. 98. 1874. 



Rattray erroneously credits the name to Janisch. In both the first and second edi- 

 tion of Schmidt's Atlas it is credited to Schmidt, as well as in the note of Rattray's in 

 his revision of the genus," containing a list of the identifications by Janisch of his 

 plates of the Gazelle Expedition. 



Found at stations 2690H, 2807, 291(iII, 2917H, 2920II, 30iaH, off Oalifornia, Gala- 

 pagos Islands, to Hawaiian Islands. 



nornianni 



Moeb. Diat.-taf. pi. 20. f. 3. 1890. Ratt. Proc, Roy. Soc. Edinb 16: 500 1889 

 De Toni, Syll. Alg. 2: 1235. 1894. 



Coscinodiscm normannicus Greg.; Van Ileur. Syiuj]). pi. ISLf. 1. 1881; type 

 no. 532. 



Odontodiscns sitbtilis Grun.; Schmidt, Jahresb. Komm. Dent, Meere 2- 95 1874 

 Van Ileur. Synop. 218. 1885. 



Coscinodiscus subtilis Ehrenb.; Eulen. Diat. Sj). Typ. no. 115 fcf. Van Ileur Synoi.) 

 218. pi 131. f. 1. 1881-85). 



Coscinodiscus curvatidus Grun. var.; Cleve, in Nordensk Vega Exped 3- 4S8 

 1883. . -i • • ' ■ 



Coscinodiscus fasciculatus Schmidt, Jahresb. Komm. Deut. Meere, 2: d5 pi 3 f j] 

 1^74; Alias pi. 57. f. 9, 10.1878. 



My specimens are with very obscure apiculae or wholly without them, a condition 



noted by Rattray. The specim(ni from station 3Gfi9II is placed here with some doubt. 



The beads are slightly oval. It is nearest to tin; unnamed tigure,<^ on which Schmidt e 



has given rea.sons for withholding from this species. Rattray erroneou.sly refers a fig. 



ure /to this species to whidi Janisch gives the name C. atlanticus Grun.,^ which shoufd 



probaldy be C. atlanticus Castr, as figured in the subspecies,'* a form recognized as valid 

 by Rattray. 



Found at stations 2844, 3526, 3571H, 3007, 30()9H, Aleutian Islands, Bering Sea, 

 Pribilof and Commander Islands, and along KurU Cliain. 



aCf. Proc. Roy. Soc. Edinb. 16: 402. 1889, 



6 Mem. Soc. Phys. et Hist. Nat. Geneva 31': 21. pi. 21. f. 6. 1891. 



c Schmidt, Atlas pi. 64. f. 2. 1878. 



d Schmidt, Jahresb. Komm. Deut. Meere 2: pi. 3. J. 42. 1874 

 «Op.cit. 95. 



/Jan. Diat. Gaz. Exped. pi 5. J. G. 



9 Proc. Roy. Soc. Edinb. 16: 402. 1889. 



h Castr. Rep. Voy. Chall. Dot. 2: pi. 3.f. 7. 1886. 



