

MANN — DIATOMS OF THE ALBATROSS VOYAGES. 349 



As Ralfs " points out, tliiri is too wide of N. smithii to mak<* a varit^ty, as Grogory pro- 

 posed. I do not think it necessary to include^ lioro A^ .smu/aia kSclimidt,^ as isdone 

 by Cleve. Schmidt hime^olf points out that 1h(^y are related, but they KCem tonie,as 

 to him, \vt)rthy of separation. 



Found at station 3G9(j, (jff Iloni^hu Tsland, Japan. 



NaviculanotabilisCrev. Trans. .Micr. Soc. Eond. n. s. 11: 18. pi l.f, 9. 1863. Moeb. 

 Diat.-taf. pi 49. f. 9. 1890. De Toni, SylL Alg. 2: 192. 1S9L Sehmidl, .Tahre^b. 

 Komm. Deut. Meere 2: 88. pi l.f. 20, pi 2.f, 11. 1874. Schmidt, Alias />/. 8, 

 J. 46-53, 1875. Van Ileur. Treat. Diat. 200. pi 26. f, 750-751. 189(). 

 Biploneis noiabilis CTeve, Sv. Vet. Akad. TTandl. 26-: 93. 1894. 

 My specimen agr(u^s wiMi tht^ two figures of Schmidt/^ A^. nolabiJis explela, wlii(h 

 mak<^ so diviTgent a variety 1 hat it would almost l>e allowable to raise the form to spe- 

 cific rank instead of consi<lering it a vioicly of (he above species. 

 Found at station 2808, Galapagos Islands. 



Navicula oamaruensis Grun.; Schmidt, Atlas pi 129. /. 9. ISSS. Cleve, Sv. Vet. 

 Akad. Handl. 2V\ r>7. 1895. 



It is a question if this can he maintained as a separate species from N, praetexta 

 Ehrenb. It is so clost^ to N. haytiana Truan &. \\\\{d that the only point of contrast 

 is in iho latter having the marginal striae interrupted at the terminations of the raphe, 

 wliile the above has the striae unbroken around tlu^ entire valve. The close resem- 

 blance is noted by Grunow in the al>ove citation. Glove unites A'^. haytiana with A^. 

 praetexta, yet gives this separate rank. I can only say in conforming to this rather 

 inconsistent arrangement that tho linr has to l)o drawn somewhere. It is signifu^ant 

 that the following dre<lging which furiiiwhoH this furm also furnislu's the normal N. 

 praetexta and the typical A', haytiana, as will l)e noted under A^. praetexta. 



Found at station 2807, (ialapagos Islands. 



Navicula pennata St4imidt, Atlas pi 48. f. 41-43. 187C. 

 1891. Cleve, Sv. Vet. Akad. Ilandl. 27': 32. 1895. 

 Nancutu kiiihn Tant. Beitr. HacilL Ung, 2: 50. pi 9. J. IGfK 1889. De Toni, Syll. 



I)eT(>ni,Syll.Alg. 2: 113. 



Alg. 2: 21. 1891. 



Scolioplcura Rzahalensis Pant. Boitr. IJacill. Ung. 2: 57. pi 8. f. 154, 1889. " De 

 Toni, Syll. Alg. 2: 2(17. 1S9I. 



Navicula pinnala Tant. Px-ilr. Bacill. Tng. 2: 54. pi 20. f, SOS. 1889. Cleve, Sv. 

 Vet. Akad. Ilandl. 27': 33. J895. De Tuni, Svll. Alg. 2: 04. 189L 



-r" 



Leaving out the unimj^ortanl matter of siz(\ this species differs from N. longa 

 Greg, chieflj in its tai)(*ring and transversely cut striae. I see no reason to consider 

 any of the above forms of PaTitocsek as ilifferent from this species. Cleve unites the 

 first two here, but assigns ineonscH^uc nt rea^^ons for giving N. pimiata separate stand- 

 ing. Scolioplcura szahdciisis is merely a contorted specinu'u of N. kinkcri; both 

 come hum the same fossil deposit at Szakal. A^. pinnala, though not recorded l)y 

 Pantocsek from Szakal, in of wide distribution, occurring wilh A^. kinkeri and S. 

 >crai'ait7t.m at Nagy-Kiu tos. as well as at Bory and Bremia. The union of A^. pinnata 

 here happens to have Ihe athled advantage of making synonymous a name too easily 

 confused wilh that given by Schmidt. 



Fttund at Rtati<m 45hdl, (iulf of Galifornia. 



Navicula plioenicenteron (Nitzsch) EJu-oid). Ber. Akad. Wiss. Berl. 1836: 53. 

 1837; Infus. 175. pi 13. f. 1. 1838. 



Bacillaria phoenicenieron Xitzsch. Xeue Schrift. Naturf. Ges. Halle 3: pi 3,f. 12^ 

 i-^ (exclusive of other figures). 1817. Ehrenb. Infus. 175, 1838. 



fiPrilch. Hist. Infus. ed. 4. 893. 18G1. 



i' Schmidt, Alias/)/. 7./. 42-43. 1875. 



cOi)p. cit. pi S.f. 49-50. 



t^ Truan & Witt, Diat. Hayti pi //./ I). 18S8 



